ASME Codes and Standards Certification — Questions and Answers

Question 1: In ASME pressure vessel design, what is the 'stress ratio' in fatigue analysis?

The ratio of primary to secondary stress in the vessel shell
The ratio of calculated stress to allowable stress
The ratio of minimum cyclic stress to maximum cyclic stress (R = Smin/Smax) (Correct answer)
The ratio of design pressure to test pressure

Correct answer: The ratio of minimum cyclic stress to maximum cyclic stress (R = Smin/Smax)

The stress ratio R = Smin/Smax defines the loading cycle in fatigue analysis, where fully reversed loading is R = -1 and one-direction pulsating load is R = 0.

Question 2: What is the 'basic dynamic load rating' (C) of a rolling element bearing?

The maximum static load the bearing can support without permanent deformation
The maximum load at maximum rated speed for 10 hours
The load at which the L10 life is exactly one million revolutions (Correct answer)
The load at which the bearing operates at its rated speed without overheating

Correct answer: The load at which the L10 life is exactly one million revolutions

The basic dynamic load rating C is the constant radial load that a bearing can theoretically endure for one million revolutions (L10 life = 1,000,000 rev).

Question 3: In ASME nondestructive examination, which NDE method is BEST suited for detecting surface-breaking cracks in ferromagnetic materials?

Magnetic Particle Testing (MT) (Correct answer)
Liquid Penetrant Testing (PT)
Ultrasonic Testing (UT)
Radiographic Testing (RT)

Correct answer: Magnetic Particle Testing (MT)

Magnetic Particle Testing (MT) is best suited for detecting surface and near-surface defects in ferromagnetic materials, using magnetic fields to reveal discontinuities.

Question 4: What is the primary function of ASME Section XI Article IWA-4000?

Repair and replacement activity requirements for nuclear pressure-retaining components (Correct answer)
Requirements for inservice testing of active components
Requirements for underwater welding during outages
Requirements for preservice inspection before plant startup

Correct answer: Repair and replacement activity requirements for nuclear pressure-retaining components

IWA-4000 of ASME Section XI establishes requirements for repair and replacement activities on nuclear pressure-retaining components, including design, welding, and documentation.

Question 5: What is a "high-temperature water boiler"?

A boiler designed for low-pressure steam generation
A boiler designed for operation at elevated temperatures without generating steam
A boiler designed for operation at high temperatures below the superheated steam range (Correct answer)
A boiler capable of producing superheated steam

Correct answer: A boiler designed for operation at high temperatures below the superheated steam range

Explanation: According to the ASME Boiler and Pressure Vessel Code, a "high-temperature water boiler" is a type of boiler designed to operate at temperatures above 250°F (121°C) and below the temperature required to produce steam. These boilers are used for various industrial applications where high-temperature water is required for heating processes, but steam generation is not the primary objective. The ASME Code provides specific guidelines and requirements for the design, construction, and operation of high-temperature water boilers to ensure their safe and efficient performance in industrial settings. Understanding this classification is important for engineers, inspectors, and operators involved in the installation and maintenance of boilers according to ASME standards.

Question 6: What geometric characteristic is used to control both size and form of a complete cylindrical feature?

Runout
Cylindricity (Correct answer)
Circularity
Straightness

Correct answer: Cylindricity

Cylindricity controls the form of an entire cylindrical surface, requiring all points to lie between two coaxial cylinders, combining roundness, straightness, and taper.

Question 7: Under ASME Y14.5, which characteristic is used to control the median plane of a slot or tab rather than a surface?

Parallelism
Position
Flatness
Symmetry (Correct answer)

Correct answer: Symmetry

Symmetry controls the median plane of a feature (slot or tab) to be coincident with the datum median plane within the tolerance zone.

Question 8: In AGMA/ASME gear design, what does the 'service factor' (KS or Ko) account for?

The gear mesh efficiency losses
The material hardness of the gear material
The duty cycle percentage over 24 hours
Overloads and shock loads beyond the nominal transmitted power (Correct answer)

Correct answer: Overloads and shock loads beyond the nominal transmitted power

The service (overload) factor accounts for shock and overload above the nominal design power, multiplying the required load capacity accordingly.

Question 9: According to ASME B30.20, what information must be permanently marked on below-the-hook lifting devices?

Manufacturer name, rated load capacity, and weight of the device (Correct answer)
Material specification and heat treatment condition
Serial number and date of manufacture only
Owner's name, purchase date, and last inspection date

Correct answer: Manufacturer name, rated load capacity, and weight of the device

ASME B30.20 requires that below-the-hook lifting devices bear permanent markings identifying the manufacturer, the rated load, and the weight of the device itself.

Question 10: Under ASME A17.1, what is required in elevator machine rooms regarding temperature?

No temperature requirement is specified
Temperature must be maintained between 32°F and 104°F (0–40°C) (Correct answer)
The room must be heated to at least 50°F year-round
Air conditioning must maintain below 70°F

Correct answer: Temperature must be maintained between 32°F and 104°F (0–40°C)

ASME A17.1 requires machine room temperatures to be maintained between 32°F and 104°F (0°C and 40°C) to protect electrical and mechanical equipment.

Question 11: Which type of gear arrangement can transmit power between non-parallel, non-intersecting shafts?

Spur gears
Bevel gears
Worm gears (Correct answer)
Helical gears

Correct answer: Worm gears

Worm gear sets transmit power between non-parallel, non-intersecting (skew) shafts, typically at 90 degrees, with high reduction ratios.

Question 12: Arc time is:

the total time the welder is clocked into work.
the total arc and non-arc time.
the non-arc time.
the time the arc is on during the arc welding operation. (Correct answer)

Correct answer: the time the arc is on during the arc welding operation.

Explanation: This is also considered the operating factor and is thought of as the percentage of a shift that a welder/welding operator is actually welding. For robotic and mechanized welding, it can be as high as 90% while for manual and semiautomatic welding it can be as low as 10-20% operating factors.

Question 13: Under ASME A17.1, what is the maximum rated speed for a hydraulic elevator?

100 fpm
200 fpm (Correct answer)
150 fpm
500 fpm

Correct answer: 200 fpm

ASME A17.1 limits the rated speed of hydraulic elevators to 200 feet per minute (fpm).

Question 14: Per ASME B30.20, what is the minimum design factor required for mechanical below-the-hook lifting devices?

4:1 (Correct answer)
3:1
2:1
5:1

Correct answer: 4:1

ASME B30.20 requires a minimum design factor of 3:1 for mechanical below-the-hook lifting devices based on the ultimate load capacity relative to the rated load.

Question 15: According to ASME B30.9, what is the maximum allowable temperature for continuous use of wire rope slings with fiber cores?

200°F (93°C)
500°F (260°C)
400°F (204°C)
300°F (149°C) (Correct answer)

Correct answer: 300°F (149°C)

ASME B30.9 limits fiber core wire rope slings to a maximum temperature of 300°F (149°C) because elevated temperatures degrade the fiber core and reduce the sling's rated capacity.

Question 16: Per ASME B30 standards, what is the maximum permissible fleet angle for wire rope spooling onto a plain (smooth) drum?

1 degree
6 degrees
2 degrees
4 degrees (Correct answer)

Correct answer: 4 degrees

ASME B30 limits the fleet angle to 4 degrees for smooth drums to prevent excessive rope wear, uneven spooling, and structural damage to the drum flanges.

Question 17: What does a 'projected tolerance zone' modifier (Ⓟ) accomplish in a position callout?

Defines the tolerance at the surface only
Extends the cylindrical tolerance zone above the part surface into the mating assembly space (Correct answer)
Applies the position control to the datum feature
Converts the round tolerance zone to a square zone

Correct answer: Extends the cylindrical tolerance zone above the part surface into the mating assembly space

A projected tolerance zone extends the position tolerance zone into the space outside the part where a mating pin or stud projects, ensuring correct mating assembly.

Question 18: In GD&T, what does the feature control frame symbol ⊕ represent?

Straightness
Flatness
Circularity
Position (Correct answer)

Correct answer: Position

The bullseye symbol (⊕) in a feature control frame represents the position geometric characteristic.

Question 19: What is a "steam boiler"?

A boiler that operates at high pressure only
A boiler designed for use in nuclear power plants
A boiler used exclusively for heating water
A boiler in which steam is generated (Correct answer)

Correct answer: A boiler in which steam is generated

Explanation: According to the ASME Boiler and Pressure Vessel Code, a steam boiler is defined as a boiler in which steam is generated. This definition encompasses boilers designed to produce steam for various industrial processes, heating applications, or power generation. Steam boilers are critical components in many industries, and the ASME Code provides standards and guidelines for their design, construction, operation, and maintenance to ensure safety, efficiency, and reliability. Understanding this definition is fundamental for compliance with ASME standards and for ensuring the proper application and operation of steam boilers in industrial settings.

Question 20: Weld backing is used with a process that uses a separate flux and electrode to _______.

provide more weight to the weldment
make the overall weld joint stiffer
make the material thicker where it is needed
support the highly fluid weld pool so it will not fall through the joint (Correct answer)

Correct answer: support the highly fluid weld pool so it will not fall through the joint

Explanation: Weld backing is used on the back side of the joint to prevent melt-through and to ensure complete penetration of the weld joint.

Question 21: Under ASME B31.3, a 'normal fluid service' piping system requires what minimum level of radiographic examination for butt welds?

Random (10%) radiography (Correct answer)
Spot radiography on 5% of welds
No radiography required unless specified
100% radiography

Correct answer: Random (10%) radiography

Normal fluid service under B31.3 requires random radiographic examination of at least 10% of circumferential butt welds.

Question 22: In ASME Section III nuclear piping analysis, what are 'Level D' service limits?

Upset (emergency) plant conditions
Fatigue cycling conditions
Normal operating load conditions
Faulted conditions — the most severe design basis events (Correct answer)

Correct answer: Faulted conditions — the most severe design basis events

Level D service limits (faulted conditions) represent the most severe loading events (e.g., safe shutdown earthquake combined with LOCA) that the component must sustain without loss of function.

Question 23: What is the primary advantage of a chain drive over a V-belt drive for power transmission?

Chain drives operate more quietly
Chain drives have no slip, providing a positive, constant velocity ratio (Correct answer)
Chain drives can operate at higher speeds without vibration
Chain drives require no lubrication

Correct answer: Chain drives have no slip, providing a positive, constant velocity ratio

Chain drives provide a positive, non-slip drive with a constant velocity ratio, unlike belt drives which can slip under overload.

Question 24: A broken surface is being observed. A small pore or inclusion-type discontinuity appears as a round bright area. Which term fits this description?

Fisheye (Correct answer)
Crack
Nucleation
Spider web

Correct answer: Fisheye

Explanation: A fisheye is caused by the presence of hydrogen in the weld. If this appeared on a break test of some type it may or may not be acceptable. Always verify the acceptance criteria per the code or specification.

Question 25: Which symbol is used in GD&T to control the circular cross-section of a cylinder at any cross-section?

Circularity (roundness) (Correct answer)
Runout
Cylindricity
Concentricity

Correct answer: Circularity (roundness)

Circularity (roundness) controls each circular cross-section of a cylinder independently, requiring all points to lie within an annular zone.

Question 26: Under ASME A17.1, what is the minimum illumination required inside an elevator car?

5 foot-candles at the control panel and floor level (Correct answer)
5 foot-candles
5 lux
5 foot-candles at the car threshold

Correct answer: 5 foot-candles at the control panel and floor level

ASME A17.1 requires a minimum of 5 foot-candles at the car control panel and at the floor level of the car.

Question 27: Which pressure testing method is preferred by ASME B31.3 for process piping?

Pneumatic testing
Radiographic examination only
Hydrostatic testing (Correct answer)
Magnetic particle testing

Correct answer: Hydrostatic testing

Hydrostatic testing is the preferred pressure test method in ASME B31.3 because it is safer than pneumatic testing.

Question 28: In shaft design per ASME standards, which failure criterion is most commonly used for ductile shaft materials under combined loading?

Fracture mechanics approach
Maximum normal stress theory
Maximum shear stress theory (Tresca)
Distortion energy theory (von Mises) (Correct answer)

Correct answer: Distortion energy theory (von Mises)

The distortion energy theory (von Mises criterion) is the most commonly used and most accurate failure criterion for ductile materials under combined loading.

Question 29: In ASME NQA-1, what is a 'design verification' activity?

Confirmation that as-built dimensions match the design drawings
Testing the final product to confirm performance
The review of vendor qualifications for nuclear-grade material supply
An independent review, check, or test of design output to confirm it satisfies design input requirements (Correct answer)

Correct answer: An independent review, check, or test of design output to confirm it satisfies design input requirements

Design verification under NQA-1 is an independent technical review (by an individual not responsible for the original design) confirming that design outputs satisfy the design inputs.

Question 30: What is the significance of the 'A-scan' display in ultrasonic testing?

A calibration record showing the instrument's linearity
A waveform display showing signal amplitude versus time (depth), used to identify and size reflectors (Correct answer)
A cross-sectional image of the test piece reconstructed from multiple UT scans
A plan view showing the top surface of the test piece

Correct answer: A waveform display showing signal amplitude versus time (depth), used to identify and size reflectors

An A-scan is the basic UT display presenting ultrasonic signal amplitude on the vertical axis versus time-of-flight (depth) on the horizontal axis, used to detect and locate reflectors.

Question 31: Under ASME Section V Article 2, what is the purpose of radiographic 'image quality indicators' (IQIs or penetrameters)?

To verify the film density is within acceptable limits
To demonstrate the radiographic sensitivity and ensure the technique can detect a specified minimum flaw size (Correct answer)
To identify the radiographer who performed the examination
To calibrate the X-ray machine output in mR/hr

Correct answer: To demonstrate the radiographic sensitivity and ensure the technique can detect a specified minimum flaw size

IQIs (penetrameters) demonstrate that the radiographic technique has sufficient sensitivity to detect a minimum flaw size, ensuring the examination is meaningful.

Question 32: What is the minimum design margin factor on ultimate tensile strength used in ASME B31.3 allowable stress calculations?

3.0 (Correct answer)
4.0
2.0
5.0

Correct answer: 3.0

ASME B31.3 uses a safety factor of 3 on ultimate tensile strength to establish allowable stresses.

Question 33: What is the difference between back and backing welds?

Equipment used
Sequence of when the welds are made (Correct answer)
None of the above
Materials used

Correct answer: Sequence of when the welds are made

Explanation: Though the weld symbols are identical, the sequence of how the welds are made is different. The back weld is made last and the backing weld is made first.

Question 34: In ASME pressure vessel inspection, what does 'corrosion allowance' represent?

The amount of material that can be corroded before the next inspection
The difference between calculated and actual wall thickness at time of fabrication
Additional wall thickness added during design to allow for material loss during service life (Correct answer)
The maximum corrosion rate allowed by the operating permit

Correct answer: Additional wall thickness added during design to allow for material loss during service life

Corrosion allowance is additional wall thickness intentionally added during design to compensate for anticipated material loss due to corrosion over the vessel's service life.

Question 35: Which ASME A17.1 requirement pertains to the pit of an elevator hoistway?

The pit floor must be painted safety yellow
The pit must have a permanent lighting switch accessible from the pit access door (Correct answer)
The pit must be at least 4 ft deep for all elevators
The pit must be heated to prevent hydraulic fluid from freezing

Correct answer: The pit must have a permanent lighting switch accessible from the pit access door

ASME A17.1 requires a permanent lighting fixture and a switch that can be operated from the pit access door to illuminate the pit safely.

Question 36: In a keyed shaft-hub connection, what type of key is designed to prevent axial movement of the hub in addition to transmitting torque?

Gib-head key
Woodruff key (Correct answer)
Square key
Feather key

Correct answer: Woodruff key

A Woodruff key is a semicircular key that seats in a curved keyway, providing excellent resistance to axial displacement of the hub as well as torque transmission.

Question 37: Under ASME power transmission standards, what is the purpose of a 'service factor' for chain drives?

To define the chain lubrication interval
To specify the minimum sprocket diameter for a given chain pitch
To modify the rated chain load capacity for the type of driven load and power source (Correct answer)
To account for speed variation above nameplate RPM

Correct answer: To modify the rated chain load capacity for the type of driven load and power source

The service factor for chain drives modifies the chain's rated load capacity to account for the type of load (smooth, moderate shock, or heavy shock) and the type of prime mover.

Question 38: Which ASME A17.1 requirement applies during a Phase I fire service recall?

The elevator returns to the designated floor with doors fully open and stays
All elevators return to the primary floor and doors open; cars then go out of service (Correct answer)
Elevators proceed to the highest floor
Elevators park at the nearest floor with doors closed

Correct answer: All elevators return to the primary floor and doors open; cars then go out of service

During Phase I fire service recall, all elevators return to the primary designated level, open their doors, and then go out of normal service for firefighter use.

Question 39: According (BPVC), what is meant by a standard?

An established rule or requirement for quality, safety, or performance (Correct answer)
A recommendation for optional practices
A document outlining historical practices
A guideline for general operating procedures

Correct answer: An established rule or requirement for quality, safety, or performance

Explanation: In the context of the ASME BPVC, a standard refers to an established rule or requirement that outlines specific criteria for ensuring quality, safety, or performance in the design, construction, inspection, testing, and operation of boilers and pressure vessels. Standards are developed by consensus among industry experts and regulatory bodies to establish uniformity, reliability, and compliance with legal and regulatory requirements. Understanding the concept of standards is crucial for engineers, designers, manufacturers, and inspectors involved in the application of the ASME BPVC to ensure that pressure equipment meets stringent criteria for safe and effective operation.

Question 40: Under ASME Section VIII Div 2, what is the significance of 'primary stress' versus 'secondary stress'?

Primary stress is from pressure; secondary stress is from thermal loading only
Primary stresses exceed yield strength; secondary stresses are within elastic range
Primary stresses occur on primary load paths; secondary stresses occur on secondary (redundant) paths
Primary stresses are load-controlled and can lead to plastic collapse; secondary stresses are strain-controlled and self-limiting (Correct answer)

Correct answer: Primary stresses are load-controlled and can lead to plastic collapse; secondary stresses are strain-controlled and self-limiting

Primary stresses are load-controlled (pressure, weight) and can cause plastic collapse if they exceed material strength; secondary stresses are strain-controlled (thermal, discontinuity) and are self-limiting as they redistribute through local yielding.

Question 41: Square wave refers to the ____________.

shape of the power source control box
shape of the filler metal
shape of the tungsten electrode
shape of the output power (Correct answer)

Correct answer: shape of the output power

Explanation: The shape of the output waveform from this type of power source is referred to as square wave. These types of power sources have enhanced performance on a.c. They can control the balance, amplitude, frequency, etc. to allow better control of penetration and cleaning action.

Question 42: What is the minimum required qualification level for an RT film interpreter under ASME Section V and SNT-TC-1A?

Level I
Any certified level is acceptable
Level III
Level II (Correct answer)

Correct answer: Level II

ASME Section V and SNT-TC-1A require at minimum a Level II certification for personnel interpreting and evaluating radiographic film for code compliance.

Question 43: In ASME nuclear component design, what is a 'qualified life' or 'qualified service life'?

The period during which the manufacturer's warranty is valid
The number of fatigue cycles at design pressure
The time between mandatory NRC inspections
The period for which a component is demonstrated to meet its safety function under design basis conditions (Correct answer)

Correct answer: The period for which a component is demonstrated to meet its safety function under design basis conditions

Qualified life is the period for which a component (especially electrical components) has been qualified by test or analysis to perform its required safety function under design basis environmental conditions.

Question 44: Under ASME Section V, liquid penetrant examination (PT) is used to detect which types of discontinuities?

Wall thickness variations from corrosion
Laminations and delaminations in plate
Subsurface inclusions and porosity
Cracks and discontinuities open to the surface (Correct answer)

Correct answer: Cracks and discontinuities open to the surface

Liquid penetrant examination is limited to detecting surface-breaking (open-to-surface) discontinuities — it cannot detect subsurface defects.

Question 45: Which ASME A17.1 requirement defines the maximum stopping distance for an escalator's emergency stop?

Dependent on speed: 12 in at 90 fpm, 18 in at 120 fpm (Correct answer)
Escalators must stop within 1 second
No more than 18 inches at rated speed
Stopping distance must not exceed 24 inches at any speed

Correct answer: Dependent on speed: 12 in at 90 fpm, 18 in at 120 fpm

ASME A17.1 specifies that escalator stopping distance must not exceed 12 inches at 90 fpm or 18 inches at 120 fpm rated speed.

Question 46: In GD&T, 'Rule #1' (the Envelope Principle) states that:

All GD&T requires datum references
Datum features must be flat and cylindrical
A perfect-form envelope at MMC must not be violated (Correct answer)
All tolerances are independent of feature size

Correct answer: A perfect-form envelope at MMC must not be violated

Rule #1 requires that a feature of size must not violate a perfect-form envelope at its Maximum Material Condition boundary.

Question 47: What is the 'diametral pitch' of a gear?

The ratio of pitch circle to outside circle diameter
The number of teeth per inch of pitch diameter (Correct answer)
The distance between adjacent tooth flanks
The center-to-center distance between meshing gears

Correct answer: The number of teeth per inch of pitch diameter

Diametral pitch (DP) is the number of teeth per inch of pitch diameter, the fundamental sizing parameter for US customary gears.

Question 48: According to ASME B30.9, what is the minimum design factor (safety factor) required for wire rope slings?

2:1
10:1
3:1
5:1 (Correct answer)

Correct answer: 5:1

ASME B30.9 requires wire rope slings to have a minimum design factor of 5:1, meaning the sling's breaking strength must be at least five times its rated capacity.

Question 49: According to ASME B30.5, which factor does NOT need to be considered when determining whether a lift is a 'critical lift'?

The color of the rigging hardware being used (Correct answer)
The load exceeds 75% of the crane's rated capacity
The use of multiple cranes to make the lift
Lifting personnel in a personnel platform

Correct answer: The color of the rigging hardware being used

The color of rigging hardware has no bearing on whether a lift qualifies as a critical lift; factors such as high percentage of rated capacity, multiple crane use, or personnel lifting define critical lifts.

Question 50: Which ASME B31 code applies to gas distribution piping within buildings?

B31.3
B31.8
B31.5
B31.2 (Correct answer)

Correct answer: B31.2

ASME B31.2 covers fuel gas piping systems within buildings and on building exteriors.

Question 51: In a flat belt drive, what is the relationship between the coefficient of friction (μ), wrap angle (θ), and the ratio of tight-side to slack-side tension?

T1 × T2 = e^(μθ)
T1/T2 = μθ
T1/T2 = e^(μθ) (Correct answer)
T1 - T2 = μθ

Correct answer: T1/T2 = e^(μθ)

The Euler-Eytelwein equation T1/T2 = e^(μθ) defines the maximum tension ratio before slipping occurs, where μ is coefficient of friction and θ is the wrap angle in radians.

Question 52: Which ASME standard governs Geometric Dimensioning and Tolerancing (GD&T) in the United States?

ASME Y14.5 (Correct answer)
ASME Y14.8
ASME Y14.2
ASME B46.1

Correct answer: ASME Y14.5

ASME Y14.5 is the standard for Geometric Dimensioning and Tolerancing used in US engineering drawings.

Question 53: According to ASME B31.3, what is the maximum allowable pneumatic test pressure?

1.5 times the design pressure
1.1 times the design pressure (Correct answer)
Equal to design pressure
1.25 times the design pressure

Correct answer: 1.1 times the design pressure

Pneumatic test pressure under ASME B31.3 shall not exceed 1.1 times the design pressure.

Question 54: Under ASME Section V, what is the purpose of a 'written procedure' for nondestructive examination?

To establish and control the technique variables ensuring repeatable and reliable examination results (Correct answer)
To document that the NDE technician has been qualified by the employer
To record the results of each NDE examination
To report indications to the Authorized Inspector

Correct answer: To establish and control the technique variables ensuring repeatable and reliable examination results

ASME Section V requires written NDE procedures to document technique variables (equipment, calibration, scanning coverage, etc.) ensuring examinations are performed consistently and reliably.

Question 55: Which ASME standard establishes quality assurance requirements for nuclear facility applications?

ASME NQA-1 (Correct answer)
ASME Section XI
ASME N509
ASME Section III

Correct answer: ASME NQA-1

ASME NQA-1 (Nuclear Quality Assurance) establishes quality assurance program requirements for nuclear facilities including design, procurement, fabrication, and testing.

Question 56: If the weld does not combine with another weld or the base metal it is referred to as:

incomplete bonding
incomplete fusion (Correct answer)
incomplete inclusion
incomplete penetration

Correct answer: incomplete fusion

Explanation: If the weld does not combine with another weld or the base metal it is referred to as Incomplete fusion.

Question 57: In a position tolerance callout of ⌀0.5 ⓜ referenced to datums A|B|C, what does the cylindrical tolerance zone diameter equal if a hole is made at its LMC (largest size)?

The same as the MMC tolerance zone
0.5 mm plus the difference between LMC and MMC of the hole (Correct answer)
0.5 mm minus the bonus
0.5 mm regardless of hole size

Correct answer: 0.5 mm plus the difference between LMC and MMC of the hole

When an MMC modifier is applied, bonus tolerance equals the difference between the actual mating size and MMC, so a hole at LMC gains full bonus tolerance added to the stated value.

Question 58: What is a "low pressure"?

Pressure applied during hydrostatic testing
Pressure below the atmospheric level
Pressure suitable for high-temperature applications
Pressure not exceeding a certain level (Correct answer)

Correct answer: Pressure not exceeding a certain level

Explanation: In the context of the ASME Boiler and Pressure Vessel Code, "low pressure" refers to pressure conditions that do not exceed a specified maximum threshold. This threshold is defined within the Code and varies depending on the type of equipment and its intended application. The ASME Code provides specific standards and guidelines for the design, construction, and operation of pressure vessels and boilers under low-pressure conditions to ensure safety, reliability, and compliance with regulatory requirements. Understanding the definition of low pressure is crucial for engineers, inspectors, and operators involved in the design, installation, and maintenance of pressure equipment according to ASME standards.

Question 59: Per ASME B30.2, what is the minimum proof load test requirement for an overhead and gantry crane before it is initially placed into service?

150% of the rated load
110% of the rated load
125% of the rated load (Correct answer)
100% of the rated load

Correct answer: 125% of the rated load

ASME B30.2 requires overhead and gantry cranes to be load tested at 125% of the rated load before being placed in service to verify structural integrity.

Question 60: Under ASME Y14.5, what does the modifier ⓜ (circle M) mean when applied to a position tolerance?

Projected Tolerance Zone
Maximum Material Condition (Correct answer)
Minimum Material Condition
Regardless of Feature Size

Correct answer: Maximum Material Condition

The ⓜ modifier specifies Maximum Material Condition (MMC), meaning the feature has the most material — smallest hole or largest pin.

Question 61: What does 'N-stamp' certification indicate for a nuclear component manufacturer?

The facility has ISO 9001 quality certification
The component passed NRC inspection and is approved for nuclear use
The manufacturer is authorized by ASME to fabricate nuclear components per Section III (Correct answer)
The component meets ASME B31.1 power piping requirements

Correct answer: The manufacturer is authorized by ASME to fabricate nuclear components per Section III

The ASME N-stamp indicates the manufacturer holds an ASME Certificate of Authorization to fabricate nuclear components in accordance with ASME Section III requirements.

Question 62: In ASME pressure vessel fabrication, what is the purpose of 'post-weld heat treatment' (PWHT)?

To relieve residual stresses and temper the heat-affected zone to improve toughness and reduce cracking susceptibility (Correct answer)
To ensure complete fusion of the weld root pass
To harden the weld metal to increase its strength
To verify the chemical composition of the deposited weld metal

Correct answer: To relieve residual stresses and temper the heat-affected zone to improve toughness and reduce cracking susceptibility

PWHT relieves residual welding stresses, tempers the heat-affected zone, and reduces hydrogen cracking susceptibility, improving the toughness and long-term reliability of pressure vessel welds.

Question 63: Under ASME NQA-1, what must a 'Corrective Action' program accomplish?

Identify, control, and correct conditions adverse to quality, with significant conditions requiring root cause analysis (Correct answer)
Report all deviations to the Nuclear Regulatory Commission within 24 hours
Verify that all personnel hold valid qualification certifications
Document all quality inspections performed during fabrication

Correct answer: Identify, control, and correct conditions adverse to quality, with significant conditions requiring root cause analysis

The NQA-1 corrective action program requires identification and correction of conditions adverse to quality; significant conditions require root cause analysis and preventive action documentation.

Question 64: What is a boiler?

Equipment for generating electricity
Equipment for heating water
Equipment for cooling gases
Equipment for generating steam or vapor (Correct answer)

Correct answer: Equipment for generating steam or vapor

Explanation: According to the ASME BPVC, a boiler is defined as equipment designed to produce steam or vapor, which can be used for heating, power generation, industrial processes, or other purposes. Boilers are critical components in many industries, including power generation, chemical processing, food and beverage production, and HVAC systems. The BPVC provides standards and guidelines for the safe design, construction, operation, and maintenance of boilers to ensure their reliability, efficiency, and safety in various industrial applications. Understanding this definition is fundamental for anyone involved in the design, operation, or inspection of boilers according to ASME standards.

Question 65: Which GD&T characteristic controls the form of a surface to be within two parallel planes?

Straightness
Flatness (Correct answer)
Parallelism
Perpendicularity

Correct answer: Flatness

Flatness controls the form of a surface by requiring all surface points to lie within two parallel planes separated by the tolerance value.

Question 66: What type of joint is NOT permitted in ASME B31.3 severe cyclic service?

Flanged connections
Socket weld fittings (Correct answer)
Full-penetration butt welds
Double-welded slip-on flanges

Correct answer: Socket weld fittings

Socket weld fittings are not permitted in severe cyclic service under B31.3 because crevice corrosion and fatigue cracking initiate at the socket gap.

Question 67: Under ASME A17.1, what is the maximum angle of inclination permitted for a standard escalator?

30 degrees (Correct answer)
25 degrees
45 degrees
35 degrees

Correct answer: 30 degrees

ASME A17.1 allows a maximum angle of inclination of 30 degrees for standard escalators (with 35 degrees allowed for limited-rise units under special conditions).

Question 68: What is an "industrial boiler"?

A boiler used in industrial settings (Correct answer)
A boiler used in commercial kitchens and restaurants
A boiler designed for high-pressure steam generation
A boiler used for residential heating purposes

Correct answer: A boiler used in industrial settings

Explanation: In the context of the ASME Boiler and Pressure Vessel Code, an "industrial boiler" is specifically designed and used for industrial applications, such as manufacturing processes, power generation, heating large buildings or facilities, and other industrial operations. These boilers are typically larger in size and capacity compared to residential or commercial boilers and are subject to specific ASME standards and regulations to ensure their safe design, construction, installation, operation, and maintenance. Understanding the distinction between industrial boilers and other types of boilers is essential for compliance with ASME regulations and ensuring safe and efficient operation in industrial environments.

Question 69: Which ASME standard covers the safety code for elevators and escalators in the United States?

ASME A17.2
ASME B30.1
ASME A13.1
ASME A17.1 (Correct answer)

Correct answer: ASME A17.1

ASME A17.1 is the Safety Code for Elevators and Escalators, the primary standard governing elevator installation and operation in the US.

Question 70: Shielding gases are used to protect the molten metal from _______.

porosity and brittleness (Correct answer)
heat and distortion
being too cold and not penetrating
being overheated and cooling to fast

Correct answer: porosity and brittleness

Explanation: The surrounding air around the weld pool contains oxygen, nitrogen, and hydrogen. These gases get into the molten weld pool and cause gas bubbles to form (porosity) and lead to embrittlement and weld cracking.

Question 71: What is a pressure vessel?

A container designed to hold fluids at a pressure different from the ambient pressure (Correct answer)
A container designed to hold gases at high temperatures
A container designed to hold fluids under vacuum
A container designed to hold fluids at ambient pressure

Correct answer: A container designed to hold fluids at a pressure different from the ambient pressure

Explanation: According to the ASME BPVC, a pressure vessel is defined as a container designed to hold fluids (liquids or gases) at pressures different from the ambient pressure. Pressure vessels are used in various industries to store, transport, and process fluids under pressure conditions that exceed atmospheric pressure. The BPVC provides standards and guidelines for the design, construction, inspection, testing, and certification of pressure vessels to ensure their safe and reliable operation. Understanding this definition is crucial for professionals involved in the design, manufacturing, inspection, and maintenance of pressure vessels according to ASME standards.

Question 72: Per ASME B30.2, how often must functional operational tests (frequent inspections) be conducted on overhead cranes in regular service?

Monthly
Before each shift or daily (Correct answer)
Weekly
Quarterly

Correct answer: Before each shift or daily

ASME B30.2 requires that frequent inspections of overhead cranes in regular service be performed at the start of each shift or daily to identify obvious defects before operation.

Question 73: What is the purpose of a load chart as required by ASME B30.5 for mobile cranes?

To document maintenance history of the crane
To list all operators certified to operate the crane
To define the maximum loads the crane can handle at various radii and boom configurations (Correct answer)
To specify allowable crane travel speeds on public roads

Correct answer: To define the maximum loads the crane can handle at various radii and boom configurations

A load chart provides the rated capacities of a mobile crane at various boom lengths, radii, and configurations so operators can ensure lifts remain within safe limits.

Question 74: Under ASME B18.25 and standard practice, what is the primary advantage of a 'splined' shaft-hub connection over a keyed connection?

Splines are simpler and cheaper to manufacture
Splines distribute torque over multiple teeth, reducing stress concentration (Correct answer)
Splines can be used only for light-duty applications
Splines eliminate the need for a press fit

Correct answer: Splines distribute torque over multiple teeth, reducing stress concentration

Splined connections distribute torque over multiple teeth simultaneously, reducing stress concentration and increasing the load capacity compared to a single key.

Question 75: According to ASME B30.5, what is the primary purpose of outriggers on a mobile crane?

To increase crane stability by widening the support base and reducing tipping risk (Correct answer)
To extend the reach of the crane's boom beyond normal limits
To provide a connection point for guy wires during erection work
To increase the maximum travel speed of the crane on highways

Correct answer: To increase crane stability by widening the support base and reducing tipping risk

Outriggers extend laterally from the crane's base to widen the support footprint, significantly improving stability against tipping when lifting heavy loads at large radii.

Question 76: What does ASME Section III Appendix I define for nuclear pressure boundary welds?

Essential variables for welding procedure qualification
Permissible weld joint configurations and allowable reinforcement (Correct answer)
Preservice examination requirements
Stress analysis requirements for piping systems

Correct answer: Permissible weld joint configurations and allowable reinforcement

ASME Section III Appendix I specifies the design rules for weld joint details, including permitted joint configurations and weld reinforcement limits for nuclear pressure boundary applications.

Question 77: In mechanical power transmission, what is the 'pitch circle' of a gear?

The outer circle defined by the tooth tips
The root circle at the base of the gear teeth
The addendum circle minus the clearance
The circle passing through the teeth contact point during meshing (Correct answer)

Correct answer: The circle passing through the teeth contact point during meshing

The pitch circle is the imaginary circle that passes through the point of contact between meshing gear teeth, used as the reference for gear calculations.

Question 78: Under ASME NQA-1, who has ultimate responsibility for the quality assurance program at a nuclear facility?

The Chief Executive or highest level of project management (Correct answer)
The Quality Assurance Manager
The Nuclear Regulatory Commission oversight team
The lead QA Inspector

Correct answer: The Chief Executive or highest level of project management

NQA-1 places ultimate responsibility for the quality assurance program with the highest management level of the organization, ensuring organizational commitment and resources.

Question 79: According to ASME B30.2, which condition requires that an overhead crane be immediately removed from service?

Presence of a new operator on the floor
Hoist drum rotation speed above the rated RPM
Ambient temperature below 40°F
Cracks, deformations, or excessive wear found during inspection (Correct answer)

Correct answer: Cracks, deformations, or excessive wear found during inspection

ASME B30.2 mandates immediate removal from service when inspection reveals cracks, deformations, or excessive wear that could affect the crane's safe operation.

Question 80: If a liquid weld pool is at a very high level of energy, at what approximate temperature will the steel begin to solidify?

3780 F
3200 F
1333 F
2780 F (Correct answer)

Correct answer: 2780 F

Explanation: When welding, the melting point of steel (approx. 27800 F) versus the solidification point of the fast freezing flux or slag (approx. 32000 F) is important to know. Also, it is important to know that the melting point varies with the carbon and alloy content of steel. Steel is magnetic until heated above the transformation temperature of approximately 1333 0 F. How fast the metal conducts heat will have a large effect of preheat and inter-pass temperature control. How much the metal expands on heating and contracts when cooling needs to be understood to control buckling and distortion.

Question 81: What does 'sustained load stress' include in ASME B31 piping analysis?

Both thermal and occasional loads combined
Occasional loads such as wind and seismic
Pressure and weight loads acting continuously on the pipe (Correct answer)
Thermal expansion stress only

Correct answer: Pressure and weight loads acting continuously on the pipe

Sustained load stress includes stresses from pressure and gravity (weight of pipe, fluid, and insulation) that act continuously.

Question 82: In ASME B31.3, Category M fluid service refers to fluids that are:

High-temperature steam
Potentially harmful in minute quantities (Correct answer)
Cryogenic liquids below -100°F
Non-flammable and non-toxic

Correct answer: Potentially harmful in minute quantities

Category M fluid service in B31.3 designates fluids where a single exposure can cause irreversible harm even in very small quantities.

Question 83: What is the primary scope of the ASME B30 series of standards?

Piping system installation and inspection
Safety requirements for cranes, hoists, and related lifting equipment (Correct answer)
Welding procedures and qualifications
Pressure vessel design and fabrication

Correct answer: Safety requirements for cranes, hoists, and related lifting equipment

The ASME B30 series establishes safety requirements for construction, installation, inspection, testing, maintenance, and operation of cranes, hoists, hooks, slings, and related lifting equipment.

Question 84: Which ASME standard governs the inspection of pressure vessels in continued service (in-service)?

ASME Section XI
ASME Section V
ASME Section VIII
API 510 (Correct answer)

Correct answer: API 510

API 510 Pressure Vessel Inspection Code governs the inspection, repair, alteration, and re-rating of pressure vessels in continued service (not ASME, but the dominant companion standard in industry).

Question 85: Under ASME A17.1, how often must an elevator safety device (car safety) be tested?

Monthly by the maintenance contractor
Every 3 years
Annually
Every 5 years with load test (Correct answer)

Correct answer: Every 5 years with load test

ASME A17.1 requires a full load safety test of the car safety device every 5 years, verifying it can stop and hold a fully loaded car.

Question 86: In ASME Section V UT examination, what is 'calibration' of an ultrasonic instrument?

Setting the gain and time base using a reference reflector of known size to establish sensitivity and range (Correct answer)
Verifying the probe frequency matches the material thickness
Verifying the ultrasonic instrument meets manufacturer's specifications
Calculating the attenuation of sound in the material being tested

Correct answer: Setting the gain and time base using a reference reflector of known size to establish sensitivity and range

Calibration in UT involves using a reference block with known reflectors to set the instrument's sensitivity and distance calibration so that indications can be accurately characterized.

Question 87: Under ASME Section VIII, what is 'MAWP' for a pressure vessel?

The pressure at which the vessel was hydrostatically tested
The pressure stamped on the nameplate plus 10% safety margin
The maximum pressure at the most severe coincident temperature for which the vessel is designed (Correct answer)
The average working pressure during normal operation

Correct answer: The maximum pressure at the most severe coincident temperature for which the vessel is designed

Maximum Allowable Working Pressure (MAWP) is the maximum pressure at which the most severe coincident temperature can be applied to a completed vessel, as determined by the weakest element's Code-allowable stress.

Question 88: In ASME piping codes, what does the term 'design pressure' represent?

The pressure at which the relief valve is set
The hydrostatic test pressure divided by 1.5
The most severe coincident pressure and temperature expected during normal operation (Correct answer)
The maximum allowable working pressure at ambient temperature

Correct answer: The most severe coincident pressure and temperature expected during normal operation

Design pressure is the most severe coincident pressure and temperature condition expected during normal operation, used to determine component thickness.

Question 89: Under ASME Section XI, what is the purpose of 'inservice inspection' (ISI) of nuclear components?

To certify materials used in reactor construction
To detect and evaluate degradation of pressure-retaining components during operation (Correct answer)
To qualify welders for nuclear work
To verify the component meets original design specifications

Correct answer: To detect and evaluate degradation of pressure-retaining components during operation

ASME Section XI inservice inspection programs detect and evaluate degradation (cracking, corrosion, erosion) in nuclear pressure-retaining components during plant operation to ensure continued safe use.

Question 90: Which term best describes the operation where a welder or welding operator has control of a molten weld pool and the weld pool has a side-to-side motion that is transverse to the travel direction?

Whipping
Both A and C
Weaving (Correct answer)
Oscillation

Correct answer: Weaving

Explanation: This welding technique would appear in the welding instructions or in the welding procedure specification. This generally increases the heat input per weld pass, but will generally reduce the total number of weld passes required to fill the joint.

Question 91: Under ASME NQA-1, what does 'Nonconformance Report' (NCR) document?

The qualifications of inspection personnel
The results of inservice inspections
An item or activity that does not conform to specified requirements, ensuring it is controlled until disposition (Correct answer)
The design basis for safety-related components

Correct answer: An item or activity that does not conform to specified requirements, ensuring it is controlled until disposition

An NCR documents a discovered nonconformance, ensures the nonconforming item is identified and segregated, and tracks disposition (use-as-is, repair, rework, or reject).

Question 92: What is the purpose of ASME Section III NCA-3800 'Manufacturer's Design Reports'?

To record the results of all NDE examinations performed
To document the qualifications of the responsible nuclear engineer
To certify and document that a nuclear component design meets all applicable ASME Section III requirements (Correct answer)
To establish the procurement specifications for nuclear-grade materials

Correct answer: To certify and document that a nuclear component design meets all applicable ASME Section III requirements

ASME Section III NCA-3800 requires the Manufacturer's Design Report (MDR) to document that each nuclear component design fully satisfies all applicable Code requirements, signed by a Responsible Nuclear Engineer.

Question 93: Per ASME B30 standards, what does 'rated load' mean for a crane or hoist?

The load applied during the proof test
The total weight of the crane structure itself
The average load handled during a typical shift
The maximum load the equipment is designed to handle safely (Correct answer)

Correct answer: The maximum load the equipment is designed to handle safely

Rated load is the maximum load for which a crane or hoist is designed and built to lift safely, as designated by the manufacturer.

Question 94: Which ASME B31 code governs the design of process piping in industrial facilities?

B31.4
B31.1
B31.5
B31.3 (Correct answer)

Correct answer: B31.3

ASME B31.3 covers process piping used in petroleum refineries, chemical plants, and similar industrial facilities.

Question 95: What is a boiler explosion?

Gradual deterioration of boiler components over time
Inefficient combustion leading to smoke emissions
Sudden release of steam during normal operation
Violent rupture or bursting of a boiler due to excessive pressure (Correct answer)

Correct answer: Violent rupture or bursting of a boiler due to excessive pressure

Explanation: In the context of the ASME Boiler and Pressure Vessel Code, a boiler explosion refers specifically to the catastrophic failure of a boiler resulting from the accumulation of excessive pressure beyond its design limits. This can lead to a sudden and dangerous release of steam, hot water, and debris, posing significant safety hazards. The ASME Code mandates stringent standards and practices to prevent such incidents, emphasizing the importance of maintaining safe operating pressures, proper maintenance, and adherence to design and construction guidelines to ensure boiler integrity and safety in industrial environments.

Question 96: What device is required by ASME A17.1 to prevent an elevator car from exceeding its rated speed during downward travel?

Buffer
Electromagnetic brake
Governor (Correct answer)
Safety device (car safety)

Correct answer: Governor

A governor monitors elevator speed and triggers the safety device when the car exceeds a set overspeed limit during descent.

Question 97: ASME B31.1 applies primarily to which type of piping system?

Building services piping
Refrigeration piping
Gas transmission pipelines
Power piping in electric generating stations (Correct answer)

Correct answer: Power piping in electric generating stations

ASME B31.1 covers power piping found in electric generating stations, industrial plants, and institutional facilities.

Question 98: According to ASME B30.5 for mobile cranes, which condition triggers mandatory inspection of the load line?

Whenever a new operator assumes control
Every time the crane travels to a new work site
After any occurrence that could have caused damage, such as a shock load (Correct answer)
After each calendar month of use

Correct answer: After any occurrence that could have caused damage, such as a shock load

ASME B30.5 requires inspection of the load line following any event that may have caused damage, including shock loads, contact with obstructions, or a dropped load.

Question 99: Per ASME B30.10, at what percentage of throat opening increase must a hook be removed from service?

25%
15% (Correct answer)
10%
5%

Correct answer: 15%

ASME B30.10 specifies that a hook must be removed from service if the throat opening has increased by more than 15% from the original dimension, indicating dangerous deformation.

Question 100: Under ASME Y14.5, what is a 'basic dimension'?

The nominal design size of a feature
A theoretically exact value from which toleranced dimensions are established (Correct answer)
A dimension with no tolerance
A reference dimension shown in parentheses

Correct answer: A theoretically exact value from which toleranced dimensions are established

A basic dimension is a theoretically exact value, enclosed in a box, used to establish the true position or profile of a feature; tolerances come from the feature control frame.

Question 101: What does 'AGMA Quality Number' indicate for gears?

The service life class of the gear in thousands of hours
The hardness of the gear tooth surface in Rockwell C
The accuracy level of the gear geometry, with higher numbers indicating tighter tolerances (Correct answer)
The AGMA rating class for the gear material

Correct answer: The accuracy level of the gear geometry, with higher numbers indicating tighter tolerances

AGMA Quality Number defines the precision of a gear's tooth geometry (pitch, profile, lead); higher quality numbers indicate tighter manufacturing tolerances and are required for high-speed applications.

Question 102: Which ASME A17.1 code section governs moving walks (horizontal escalators)?

Part 9
Part 2
Part 12
Part 6 (Correct answer)

Correct answer: Part 6

ASME A17.1 Part 6 covers the requirements for moving walks (passenger conveyors) including horizontal and inclined moving walks.

Question 103: What is the purpose of a datum reference frame in ASME Y14.5 GD&T?

To specify the surface finish of a part
To establish a coordinate system from which measurements are made (Correct answer)
To indicate the assembly sequence
To define material condition modifiers

Correct answer: To establish a coordinate system from which measurements are made

A datum reference frame establishes the three mutually perpendicular planes from which part features are located and measured.

Question 104: In ASME B31.3, 'High Pressure' (HP) fluid service requires examination to which standard?

The same as Category M service
Standard ASME weld quality only
The same as Normal fluid service
K-type joints examined per Appendix K (Correct answer)

Correct answer: K-type joints examined per Appendix K

High pressure fluid service in B31.3 uses special joints and examination requirements defined in Appendix K, which are more stringent than normal service.

Question 105: What is the purpose of the 'terminal stopping device' required by ASME A17.1?

To stop the elevator during a fire service recall
To prevent the car from traveling beyond the top or bottom terminal landings (Correct answer)
To sense when passengers are exiting the car
To stop the elevator at the lowest terminal landing during normal operation

Correct answer: To prevent the car from traveling beyond the top or bottom terminal landings

Terminal stopping devices are final limit switches that cut power to prevent the elevator from traveling beyond the top or bottom terminal landings under any condition.

Question 106: In BPVC, what does the term "reliability" mean?

The ability of a system or component to perform its required functions under stated conditions for a specified period of time (Correct answer)
The ability of a system to operate at high temperatures
The capacity of a material to conduct electricity
The capability of a component to withstand external forces

Correct answer: The ability of a system or component to perform its required functions under stated conditions for a specified period of time

Explanation: In engineering, reliability refers to the consistency and dependability of a system or component to perform its intended functions under specified conditions and over a defined period. It encompasses factors such as durability, performance, and resilience to environmental factors and operational stresses. Engineers assess reliability to ensure that equipment, machinery, and systems meet operational requirements and maintain safety and efficiency throughout their lifecycle. Understanding reliability is essential for designing, testing, and maintaining systems and components according to established engineering standards and practices.

Question 107: Under ASME Section VIII, which type of weld joint receives the highest allowable efficiency (E = 1.0)?

Full penetration corner joint
Double-welded butt joint with 100% radiographic examination (Correct answer)
Single-welded butt joint with backing strip
Single-welded butt joint without backing strip

Correct answer: Double-welded butt joint with 100% radiographic examination

A double-welded full-penetration butt joint with 100% radiographic examination achieves a joint efficiency of 1.0, the maximum allowed under ASME Section VIII Division 1.

Question 108: In GD&T profile of a surface, what does a unilateral tolerance zone (shown with a phantom line) indicate?

The tolerance applies only to one side of the true profile (Correct answer)
The profile control has no datum requirement
The entire part has a single surface profile
Both sides of the profile are equally toleranced

Correct answer: The tolerance applies only to one side of the true profile

A unilateral profile tolerance zone places all of the tolerance on one side of the true profile — either all inside or all outside the nominal surface.

Question 109: In V-belt drive design per ASME/RMA standards, what does 'effective tension' represent?

The total tension in the tight side of the belt
The pre-tension applied during installation
The tension when the belt begins to slip on the sheave
The difference between tight-side and slack-side tension, equal to the transmitted force (Correct answer)

Correct answer: The difference between tight-side and slack-side tension, equal to the transmitted force

Effective tension is the net force transmitting power, equal to the difference between the tight-side tension and the slack-side tension.

Question 110: Which standard governs the qualification of welding procedures for ASME B31 piping?

ASME Section II Part C
API 1104
ASME Section IX (Correct answer)
AWS D1.1

Correct answer: ASME Section IX

ASME Section IX, Welding, Brazing, and Fusing Qualifications, governs procedure and performance qualification for ASME B31 piping.

Question 111: Which ASME standard covers the design of spur and helical gears for general industrial use?

ASME B6.1 (Correct answer)
ASME B16.5
ASME B29.1
ASME B18.1

Correct answer: ASME B6.1

ASME B6.1 covers the specification of spur and helical gear tooth form, proportions, and accuracy for industrial applications.

Question 112: For two gears to mesh correctly, which parameter must be equal for both gears?

Addendum and root circle diameters
Face width
Number of teeth
Pressure angle and diametral pitch (or module) (Correct answer)

Correct answer: Pressure angle and diametral pitch (or module)

Meshing gears must have equal pressure angles and equal diametral pitch (or module in metric) to ensure correct tooth contact geometry.

Question 113: What is meant by "inspection" according to the ASME Boiler and Pressure Vessel Code?

Physical cleaning of boiler tubes and surfaces
Routine maintenance of boiler components
Examination or assessment to check compliance with regulations or standards (Correct answer)
Testing of boiler efficiency and heat transfer rates

Correct answer: Examination or assessment to check compliance with regulations or standards

Explanation: In the context of the ASME Boiler and Pressure Vessel Code, inspection refers to the systematic examination or assessment of boilers and pressure vessels to ensure they comply with applicable regulations, codes, and standards. Inspections are essential for verifying the integrity, safety, and performance of equipment, including identifying potential defects, wear, or degradation that could compromise operational reliability or safety. The ASME Code specifies inspection intervals, methods, and criteria to be followed by authorized inspectors to maintain compliance and ensure the continued safe operation of boilers and pressure vessels in various industrial applications.

Question 114: __________ is a groove melted into the base metal next to the weld toe or weld root and has not been filled in.

Undercut (Correct answer)
Cracks
Craters
Under fill

Correct answer: Undercut

Explanation: Undercut best describes this fashion. Some people want to call it “under fill” but it is not correct, since it is not in the weld being located next to the toe.

Question 115: Under ASME A17.1, what is the minimum illumination required at the escalator entrance and exit landings?

2 foot-candles
20 foot-candles
5 foot-candles
10 foot-candles (Correct answer)

Correct answer: 10 foot-candles

ASME A17.1 requires a minimum of 10 foot-candles of illumination at escalator entrance and exit landings for safe passenger use.

Question 116: Under ASME Section XI, IWB applies to which class of nuclear components?

Class 3 pressure-retaining components
Component supports for all classes
Class 2 pressure-retaining components
Class 1 pressure-retaining components (Correct answer)

Correct answer: Class 1 pressure-retaining components

IWB of ASME Section XI provides inspection requirements for Class 1 pressure-retaining components (reactor coolant system boundary).

Question 117: What does the ASME B31.8 code specifically cover?

Refrigeration piping
Cryogenic storage systems
Gas transmission and distribution piping systems (Correct answer)
Slurry transportation pipelines

Correct answer: Gas transmission and distribution piping systems

ASME B31.8 covers the design, fabrication, installation, and testing of gas transmission and distribution piping.

Question 118: What is the maximum allowable kinetic energy of a closing door under ASME A17.1?

10.0 ft-lbf (13.6 J)
5.0 ft-lbf (6.8 J)
7.37 ft-lbf (10 J) (Correct answer)
2.5 ft-lbf (3.4 J)

Correct answer: 7.37 ft-lbf (10 J)

ASME A17.1 limits the kinetic energy of a closing door to 7.37 ft-lbf (10 joules) to prevent injury if the door strikes a passenger.

Question 119: Which ASME B31 code covers liquid pipeline transportation systems?

B31.8
B31.2
B31.4 (Correct answer)
B31.6

Correct answer: B31.4

ASME B31.4 governs pipeline transportation systems for liquid hydrocarbons and other liquids.

Question 120: Under ASME A17.1, what device must automatically stop an escalator if the step chain breaks or becomes slack?

Comb-plate deflection switch
Step chain tension device (Correct answer)
Governor
Emergency brake

Correct answer: Step chain tension device

A step chain tension device (broken step chain device) monitors step chain tension and automatically stops the escalator if the chain breaks or loses tension.

Question 121: What does 'full radiography' (RT-1) mean for a pressure vessel weld joint under ASME Section VIII?

Radiography at both ends and midpoint of each weld
Digital radiography (DR) only — no film radiography
Spot radiography of 10% of weld length
Complete radiographic examination of 100% of the weld length (Correct answer)

Correct answer: Complete radiographic examination of 100% of the weld length

Full radiography means 100% of the weld length is examined by radiographic testing, earning the maximum joint efficiency and the most rigorous quality assurance.

Question 122: What does the term 'regardless of feature size' (RFS) mean in ASME Y14.5?

The tolerance applies only at MMC
Only form tolerances apply
The tolerance zone increases as the part gets smaller
The geometric tolerance applies at any produced size of the feature without bonus tolerance (Correct answer)

Correct answer: The geometric tolerance applies at any produced size of the feature without bonus tolerance

RFS means the stated geometric tolerance applies regardless of the actual produced size of the feature — no bonus tolerance is gained.

Question 123: Under ASME A17.1, what is required when elevator doors are held open by a passenger obstructing the door?

The elevator must call for service after 30 seconds
The elevator must sound an alarm after 15 seconds
A nudging mode must activate after 20 seconds to gently close the door (Correct answer)
The doors must immediately apply maximum closing force

Correct answer: A nudging mode must activate after 20 seconds to gently close the door

ASME A17.1 requires that if a door is held open for 20 seconds, a nudging signal sounds and the door closes at reduced kinetic energy (nudging mode).

Question 124: According to the ASME Boiler and Pressure Vessel Code (BPVC), what is meant by catastrophic failure?

Normal wear and tear during the operation
Minor damage due to wear and tear
Gradual loss of performance over time
Severe and sudden breakdown or collapse (Correct answer)

Correct answer: Severe and sudden breakdown or collapse

Explanation: According to ASME standards and guidelines, catastrophic failure refers to a sudden and severe breakdown or collapse of a pressure vessel or boiler that can result in significant damage, loss of containment, and potential hazards to personnel and the environment. This term underscores the importance of adhering to strict design, construction, inspection, and maintenance practices as specified in the BPVC to prevent such failures. Understanding catastrophic failure helps engineers and inspectors recognize potential risks and take appropriate measures to ensure the safe operation of pressure vessels and boilers in accordance with ASME standards.

Question 125: Under ASME B31 codes, what does 'MAWP' stand for?

Minimum Allowable Working Pressure
Measured Actual Working Pressure
Maximum Adjusted Wall Parameter
Maximum Allowable Working Pressure (Correct answer)

Correct answer: Maximum Allowable Working Pressure

MAWP stands for Maximum Allowable Working Pressure, the highest pressure at which a component is rated for continuous service.

Question 126: Before welding can be done to an industrial welding standard, the supervisor needs to verify:

the cost metric.
the quality metric.
the safety metric.
that the welding procedure specifications and welder qualifications are in order. (Correct answer)

Correct answer: that the welding procedure specifications and welder qualifications are in order.

Explanation: All industrial codes and standards reference the requirement for having qualified procedures. They need to be openly available and the welders need to be trained on their proper use. The welders need to be qualified on those procedures and their qualifications must be current. The supervisor needs to do this by verifying the welder's continuity report.

Question 127: What does 'true position' mean in ASME Y14.5 GD&T?

The theoretically exact location of a feature defined by basic dimensions (Correct answer)
The datum axis of a cylindrical feature
The actual measured position of a feature
The tolerance zone center for runout

Correct answer: The theoretically exact location of a feature defined by basic dimensions

True position is the theoretically exact location of a feature, defined by basic (boxed) dimensions from the datum reference frame.

Question 128: According to ASME B30.2, at what sustained wind speed must outdoor overhead crane operations generally be suspended?

50 mph (80 km/h)
35 mph (56 km/h)
20 mph (32 km/h)
The standard defers to the crane manufacturer's recommendation (Correct answer)

Correct answer: The standard defers to the crane manufacturer's recommendation

ASME B30.2 does not specify a fixed wind speed threshold but requires operators to follow the crane manufacturer's recommendations for maximum wind speed, which varies by crane type and configuration.

Question 129: What is the purpose of an ASME 'U' (Universal) stamp on a pressure vessel?

It identifies the vessel as manufactured to ASME Section VIII Division 1 (Correct answer)
It certifies the vessel was fabricated in the United States
It certifies the vessel passed ultrasonic examination
It indicates the vessel is rated for unfired (un-heated) service only

Correct answer: It identifies the vessel as manufactured to ASME Section VIII Division 1

The ASME 'U' stamp on a pressure vessel data report certifies that the vessel was manufactured in accordance with ASME Boiler and Pressure Vessel Code Section VIII Division 1.

Question 130: Which ASME Section III subsection covers nuclear pumps?

ND
NC
NF
NB (Correct answer)

Correct answer: NB

ASME Section III Subsection NB covers Class 1 components including pumps, valves, and piping in the reactor coolant pressure boundary.

Question 131: What is the allowable test pressure for a hydrostatic test under ASME B31.3?

1.25 times the design pressure
1.1 times the design pressure
1.5 times the design pressure (Correct answer)
2.0 times the design pressure

Correct answer: 1.5 times the design pressure

ASME B31.3 requires hydrostatic test pressure to be at least 1.5 times the design pressure.

Question 132: Which ASME Y14.5 modifier allows the tolerance zone to move (bonus tolerance) as features depart from their maximum material condition?

Maximum Material Condition (MMC)
Least Material Condition (LMC)
Both MMC and LMC (Correct answer)
Regardless of Feature Size (RFS)

Correct answer: Both MMC and LMC

Both MMC and LMC modifiers allow bonus tolerance — the geometric tolerance zone expands as the feature departs from the specified material condition.

Question 133: What does ASME A17.1 require regarding the 'comb-plate' of an escalator?

It must mesh with the step grooves and be designed to deflect if an obstruction is caught (Correct answer)
It must be removable without tools for maintenance
It must be made of aluminum only
It must be painted yellow as a safety warning

Correct answer: It must mesh with the step grooves and be designed to deflect if an obstruction is caught

The comb-plate must interleave with the grooves in the escalator steps and is required to deflect or break away if an object becomes lodged, triggering an emergency stop.

Question 134: According to ASME B30.2, what is the required action when a crane's load-limiting or load-indicating device is found to be malfunctioning?

The crane may continue in service at 75% of rated load until repairs are made
A written variance from the authority having jurisdiction must be obtained
The crane must be taken out of service until the device is repaired or replaced (Correct answer)
The device may be bypassed if an experienced operator is present

Correct answer: The crane must be taken out of service until the device is repaired or replaced

ASME B30.2 requires that any crane with a malfunctioning load-limiting or load-indicating device be removed from service immediately until the device is properly repaired or replaced.

Question 135: Under ASME Section VIII Division 1, what is the minimum required hydrostatic test pressure for a new pressure vessel?

1.5 times the MAWP
1.1 times the MAWP
1.25 times the MAWP adjusted for temperature (Correct answer)
2.0 times the MAWP

Correct answer: 1.25 times the MAWP adjusted for temperature

ASME Section VIII Div 1 requires a hydrostatic test pressure of at least 1.3 times the MAWP multiplied by the ratio of allowable stress at test temperature to allowable stress at design temperature (approximately 1.25-1.3×).

Question 136: What does ASME A17.1 specify as the minimum car inside height for a passenger elevator?

7 ft 0 in
7 ft 6 in
8 ft 0 in
6 ft 8 in (Correct answer)

Correct answer: 6 ft 8 in

ASME A17.1 requires a minimum inside car height of 6 feet 8 inches (2032 mm) for passenger elevators.

Question 137: Per ASME B30.9, which sling configuration results in the greatest reduction in rated capacity compared to a straight vertical lift?

Two-leg bridle sling at 60 degrees included angle
Two-leg bridle sling at 120 degrees included angle (Correct answer)
Two-leg bridle sling at 90 degrees included angle
Single-leg sling used in basket hitch

Correct answer: Two-leg bridle sling at 120 degrees included angle

As the included angle between sling legs increases, the tension in each leg increases dramatically; a 120-degree included angle creates the greatest leg tension and thus the most severe capacity reduction.

Question 138: Which GD&T control requires that a surface or axis be equidistant from a datum plane?

Symmetry
Perpendicularity
Parallelism (Correct answer)
Flatness

Correct answer: Parallelism

Parallelism requires a surface or axis to lie within a tolerance zone that is parallel (equidistant) to the datum reference plane or axis.

Question 139: What is the advantage of helical gears over spur gears for high-speed power transmission?

Helical gears have higher contact ratio, providing smoother and quieter operation (Correct answer)
Helical gears can mesh at any shaft angle without modification
Helical gears are always more efficient than spur gears
Helical gears eliminate all axial thrust forces

Correct answer: Helical gears have higher contact ratio, providing smoother and quieter operation

Helical gears have a higher contact ratio because multiple teeth are in contact simultaneously, resulting in smoother, quieter operation at high speeds.

Question 140: In ASME piping, what is the purpose of the 'stress intensification factor' (SIF)?

To account for corrosion allowance in wall thickness
To account for increased stress at fittings and bends compared to straight pipe (Correct answer)
To reduce allowable stress for high-temperature service
To define the safety factor applied to yield strength

Correct answer: To account for increased stress at fittings and bends compared to straight pipe

Stress intensification factors (SIFs) account for the local stress concentration that occurs at elbows, tees, and other fittings relative to girth welds in straight pipe.

Question 141: According to ASME B30.2, how frequently must periodic inspections of overhead and gantry cranes be conducted?

Monthly by a qualified inspector
At intervals not exceeding one year, or as recommended by a qualified person (Correct answer)
Daily before each shift
Weekly by a designated person

Correct answer: At intervals not exceeding one year, or as recommended by a qualified person

ASME B30.2 requires periodic inspections at intervals not exceeding one year (or shorter if conditions warrant), performed by a qualified inspector to identify deficiencies.

Question 142: Per ASME B30.2, what must be done before personnel are permitted to work beneath a suspended load?

Limit crane travel speed to 10% of the maximum rated speed
Ensure the load is secured and cannot be accidentally released or dropped (Correct answer)
Obtain written approval from the crane manufacturer
Post a warning sign at the crane's controls

Correct answer: Ensure the load is secured and cannot be accidentally released or dropped

ASME B30.2 prohibits personnel from working beneath a suspended load unless the load is safely secured, such as blocked or cribbed, to prevent unintended movement or dropping.

Question 143: Which ASME NQA-1 requirement addresses the procurement of nuclear-grade materials and components from suppliers?

Requirement 2 — Quality Assurance Program
Requirement 18 — Audits
Requirement 7 — Control of Purchased Items and Services (Correct answer)
Requirement 14 — Inspection

Correct answer: Requirement 7 — Control of Purchased Items and Services

NQA-1 Requirement 7 establishes the requirements for qualifying suppliers and controlling the procurement of items and services to ensure nuclear-grade quality.

Question 144: Under ASME fitness-for-service evaluation (API 579 / ASME FFS-1), what does a 'Level 1 assessment' involve?

Third-party peer review of the engineering assessment
Detailed finite element analysis of the damaged component
Full-scale proof testing of the damaged component
Conservative screening calculations using simple closed-form equations that can be performed with basic inspection data (Correct answer)

Correct answer: Conservative screening calculations using simple closed-form equations that can be performed with basic inspection data

A Level 1 fitness-for-service assessment uses conservative screening methods and simple equations requiring minimal inspection data, providing a quick determination of remaining fitness.

Question 145: Per ASME B30.9, what condition requires a wire rope sling to be immediately removed from service?

Six randomly distributed broken wires in one rope lay length
Any visible surface oxidation or rust staining
Use of the sling in ambient temperatures above 70°F (21°C)
Evidence of kinking, crushing, birdcaging, or core protrusion (Correct answer)

Correct answer: Evidence of kinking, crushing, birdcaging, or core protrusion

ASME B30.9 mandates removal from service when a wire rope sling shows evidence of kinking, crushing, birdcaging, or core protrusion because these defects severely compromise the sling's load-carrying ability.

Question 146: Under ASME NQA-1, what document establishes the overall quality assurance program for a nuclear facility project?

Inspection and Test Plan
Quality Assurance Program Description (QAPD) (Correct answer)
Quality Control Plan
Non-Conformance Report

Correct answer: Quality Assurance Program Description (QAPD)

The Quality Assurance Program Description (QAPD) is the top-level document that describes how the organization implements each NQA-1 requirement throughout the project lifecycle.

Question 147: In ASME/AGMA gear design, 'pitting resistance' (contact fatigue) life is primarily dependent on which stress?

Bending stress at the tooth root
Shear stress along the pitch line
Torsional stress in the gear hub
Hertz contact stress at the pitch point (Correct answer)

Correct answer: Hertz contact stress at the pitch point

Pitting resistance life depends on Hertzian contact stress at the tooth surface, which causes surface fatigue (pitting) if excessive.

Question 148: Under ASME Section III, nuclear pressure vessels are classified into which design categories?

Class 1, 2, and 3 (Correct answer)
Grade I, II, and III
Class A, B, and C
Level A, B, C, and D

Correct answer: Class 1, 2, and 3

ASME Section III classifies nuclear components as Class 1 (highest safety significance — reactor coolant boundary), Class 2, and Class 3 based on their safety importance.

Question 149: What is the purpose of a 'Source Verification' activity in nuclear procurement under NQA-1?

To certify that a nuclear material meets ASTM chemical composition requirements
To verify that items or services being procured conform to specified requirements at the supplier's facility before shipment (Correct answer)
To audit a supplier's quality program annually
To review the supplier's corrective action records

Correct answer: To verify that items or services being procured conform to specified requirements at the supplier's facility before shipment

Source verification (source inspection) involves sending a qualified inspector to the supplier's facility to verify conformance to procurement requirements before the item is shipped.

Question 150: In GD&T, 'total runout' controls which combination of errors?

Only wobble during rotation
Circularity and surface finish
Concentricity and size variation
All surface variations relative to a datum axis including wobble, taper, and form (Correct answer)

Correct answer: All surface variations relative to a datum axis including wobble, taper, and form

Total runout measures all surface deviations — including circular runout, taper, straightness, and form — across the entire surface relative to the datum axis.

Question 151: In ASME bearing life calculations (L10 life), what does 'L10' represent?

The life of a bearing after 10,000 hours of operation
The life at a 10% overload condition
The life at which 10% of bearings are expected to fail (Correct answer)
The life at which 90% of bearings have failed

Correct answer: The life at which 10% of bearings are expected to fail

L10 is the rating life at which 10% of a group of identical bearings under identical loads is expected to fail (90% reliability).

ASME Codes and Standards Certification

ASME certification exams validate expertise in American Society of Mechanical Engineers codes and standards covering piping systems, lifting and rigging equipment, nuclear quality assurance, and mechanical power transmission — essential knowledge for engineers, inspectors, and safety professionals in industrial settings.

150

Questions

240 min

Time Limit

74%

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