MASS Test — Questions and Answers

Question 1: A burning smell while driving could indicate:

Properly working wipers
A clean interior
Overheating brakes, clutch, or electrical issues (Correct answer)
A fresh air filter

Correct answer: Overheating brakes, clutch, or electrical issues

A burning smell may signal overheating brakes, a slipping clutch, or electrical problems that need inspection.

Question 2: An assembly drawing shows a bolt, a nut, and two washers being used to join two steel plates. What is the primary function of the washers in this assembly?

To act as a spacer to ensure the bolt is the correct length.
To prevent the nut from loosening due to vibration.
To permanently lock the bolt and nut together.
To distribute the load of the bolt and nut over a wider surface area. (Correct answer)

Correct answer: To distribute the load of the bolt and nut over a wider surface area.

Washers are primarily used to distribute the pressure of the nut and bolt head evenly over the part being secured. This distribution of load helps to prevent damage to the surface of the steel plates and reduces the chance of the fastener loosening over time.

Question 3: Which shape has the most sides?

Pentagon
Octagon (Correct answer)
Hexagon
Square

Correct answer: Octagon

An octagon has 8 sides, more than the others.

Question 4: Which of these is NOT a standard hand signal?

Left turn
Right turn
Stop
Reverse (Correct answer)

Correct answer: Reverse

There is no standard hand signal for reversing; only left, right, and stop are standard.

Question 5: What should you do if you notice a frayed or worn drive belt?

Cut it off entirely
Leave it until it snaps
Replace it before it fails and disables key systems (Correct answer)
Tighten it with tape

Correct answer: Replace it before it fails and disables key systems

A worn drive belt can fail and disable systems like the alternator or water pump, so it should be replaced promptly.

Question 6: In a connection question, both labeled points are on the interior of their shapes. The correct line:

Skips one of the points
Runs edge to edge instead
Connects to the nearest corners
Runs from one interior point to the other interior point (Correct answer)

Correct answer: Runs from one interior point to the other interior point

The line must connect the exact labeled points wherever they are placed.

Question 7: Which of the figures below is a rotation of the original figure and NOT a mirror image? (Image showing one original asymmetrical 3D object and four other 3D objects would be here)

Figure C
Figure A
Figure B (Correct answer)
Figure D

Correct answer: Figure B

Figure B is the only object that can be achieved by rotating the original object in space. Figures A, C, and D are mirror images (or enantiomorphs), meaning their features are reversed as if seen in a mirror, and they cannot be superimposed on the original through rotation alone.

Question 8: A motorcyclist with a faulty turn signal wants to turn right. The correct hand signal is to do what?

Extend the left arm straight out
Raise both hands
Point the left arm downward
Extend the left arm out and bend it upward (Correct answer)

Correct answer: Extend the left arm out and bend it upward

Left arm extended and bent upward at the elbow signals a right turn.

Question 9: A driver wants to merge left and has no working left turn light. What is the best action?

Use the left-turn hand signal before merging (Correct answer)
Merge without any signal
Flash the headlights
Use the stop signal

Correct answer: Use the left-turn hand signal before merging

Extending the left arm straight out signals the intended left movement when the light fails.

Question 10: A technician is servicing a piece of equipment and consults the lubricant specification chart below. The equipment is a standard enclosed gearbox operating in a factory where the ambient temperature is consistently between 15°C and 35°C. Which lubricant is the most appropriate choice? | Lubricant | ISO VG | Temp Range (°C) | Application | |---|---|---|---| | Hydro-L 32 | 32 | -10 to 60 | Light-duty hydraulics | | Gear-M 220| 220| 0 to 95 | Enclosed gearboxes | | Synth-H 68 | 68 | -20 to 120 | High-temp hydraulics | | Chain-T 150| 150| -5 to 80 | Conveyor chains |

Gear-M 220 (Correct answer)
Synth-H 68
Chain-T 150
Hydro-L 32

Correct answer: Gear-M 220

The application is an 'Enclosed gearbox', which matches Gear-M 220. The operating temperature (15°C to 35°C) is well within the acceptable temperature range (0 to 95°C) for Gear-M 220. The other lubricants are for different applications (hydraulics, chains).

Question 11: A project's Dig Safe ticket was issued and utilities were marked on April 10th. Due to unforeseen delays, the excavation has not started by May 15th. What is the status of the Dig Safe markings?

The marks are valid for 60 days, so work can proceed as planned.
The original marks are expired, and a new Dig Safe ticket must be requested for a re-mark. (Correct answer)
The excavator must contact the utility companies directly for verbal approval.
The marks are still valid as long as they are clearly visible.

Correct answer: The original marks are expired, and a new Dig Safe ticket must be requested for a re-mark.

In Massachusetts, Dig Safe markings and the associated ticket are valid for 30 calendar days from the date of issuance. Since more than 30 days have passed, the excavator is legally required to notify Dig Safe again to obtain a new ticket and have the utilities re-marked before any digging can legally begin.

Question 12: Which factor is most critical when selecting a sling for a high-temperature environment?

Sling material heat resistance rating (Correct answer)
Sling width
Sling color coding
Sling length

Correct answer: Sling material heat resistance rating

High temperatures degrade synthetic slings rapidly, so the sling material's heat resistance rating must exceed the ambient and load temperature.

Question 13: A troubleshooting guide states: "If the motor overheats, check the cooling fan first, then the air vents." The first item to check is the:

Air vents
Motor windings
Power supply
Cooling fan (Correct answer)

Correct answer: Cooling fan

The guide directs checking the cooling fan first.

Question 14: What is the correct action when you witness an unsafe act by a coworker?

Wait until someone is injured
Stop the activity and report it (Correct answer)
Copy the behavior
Ignore it to avoid conflict

Correct answer: Stop the activity and report it

Intervening and reporting unsafe acts prevents injuries.

Question 15: Which of the following is the BEST practice for ensuring safety when preparing to work on a high-pressure steam line?

Verify the line is properly isolated, de-pressurized, vented, and locked out. (Correct answer)
Wear standard cotton gloves for better grip on tools.
Tap the pipe with a wrench to listen for pressure.
Assume the line is safe if no steam is visibly leaking from the joints.

Correct answer: Verify the line is properly isolated, de-pressurized, vented, and locked out.

High-pressure steam is extremely dangerous due to high temperatures and pressure. The only safe method is to follow formal procedures to verify that the steam line has been isolated from the source, completely de-pressurized and vented, and secured using Lockout/Tagout procedures. Assumptions and informal checks are unsafe and can lead to catastrophic failure.

Question 16: When approaching a turn at night, why might hand signals be less effective?

They glow in the dark
They are illegal at night
They confuse pedestrians only
They are harder to see in low light (Correct answer)

Correct answer: They are harder to see in low light

Hand signals are harder for others to see in darkness, so working lights become more important.

Question 17: What is the correct way to test the parking brake?

Engage it and confirm it holds the vehicle stationary (Correct answer)
Use it instead of the steering wheel
Ignore it during inspection
Press it while at highway speed

Correct answer: Engage it and confirm it holds the vehicle stationary

The parking brake should hold the vehicle securely in place when engaged on a slope or flat surface.

Question 18: A bag has 3 red and 2 blue marbles. What is the probability of drawing red?

3/5 (Correct answer)
1/5
2/5
1/2

Correct answer: 3/5

There are 3 red out of 5 total marbles, so the probability is 3/5.

Question 19: When two shapes are congruent, they have:

Same color only
Same shape and size (Correct answer)
Same shape, different size
Different shapes

Correct answer: Same shape and size

Congruent shapes match in both shape and size.

Question 20: If a car travels 180 miles on 6 gallons of fuel, what is its fuel efficiency?

25 mpg
32 mpg
28 mpg
30 mpg (Correct answer)

Correct answer: 30 mpg

180 ÷ 6 = 30 miles per gallon.

Question 21: If x = 4, what is the value of 2x² − 5?

27 (Correct answer)
21
32
11

Correct answer: 27

2 × 16 − 5 = 32 − 5 = 27.

Question 22: What is the legal following distance guideline taught for Massachusetts drivers in good conditions?

Half-car length
At least the 2-3 second rule (Correct answer)
No guideline
1-second rule

Correct answer: At least the 2-3 second rule

Drivers should maintain at least a 2-3 second following distance, increasing it in poor conditions.

Question 23: If a ground worker finds themselves within the step potential zone when a crane contacts a power line, how should they exit the hazard area?

Shuffle with feet kept close together in small steps away from the crane (Correct answer)
Drop to hands and knees and crawl away from the energized equipment
Run as fast as possible to create maximum distance quickly
Walk normally to the nearest designated safe area

Correct answer: Shuffle with feet kept close together in small steps away from the crane

Shuffling with feet kept close together eliminates the voltage difference between the two ground contact points, preventing current from flowing through the legs and body while exiting the step potential zone.

Question 24: A pipe connects two identical covered liquid containers. How much force will the connecting pipe apply if one side receives 12 lbs of force?

12 lbs (Correct answer)
18 lbs
16 lbs
20 lbs

Correct answer: 12 lbs

According to Pascal's Principle, pressure applied to an enclosed fluid is transmitted undiminished to every portion of the fluid and the walls of the containing vessel. Since the two liquid containers are identical, they have the same cross-sectional area. Therefore, if 12 lbs of force is applied to one side, an equal force of 12 lbs will be transmitted through the liquid to the other side and applied by the connecting pipe.

Question 25: What is the purpose of a tag line during a rigging operation?

To serve as a secondary lifting line
To control load swing and rotation without direct contact (Correct answer)
To attach the load to the crane hook
To measure the load weight

Correct answer: To control load swing and rotation without direct contact

Tag lines allow workers to guide and control a suspended load's rotation and movement without standing under or in direct contact with the load.

Question 26: When two chart values bracket your actual radius (e.g., your radius falls between listed 25 ft and 30 ft rows), you should:

Average the two values
Use the shorter radius value
Use the capacity for the next larger (longer) radius (Correct answer)
Pick whichever is higher

Correct answer: Use the capacity for the next larger (longer) radius

Always round to the longer radius, which gives the more conservative, lower capacity.

Question 27: Why must scaffolding be inspected by a competent person before each shift?

To check the paint
To measure wind speed
To identify defects or instability that could cause a collapse (Correct answer)
To count the workers

Correct answer: To identify defects or instability that could cause a collapse

Pre-shift inspection catches damaged or unstable components before workers are exposed to a fall or collapse hazard.

Question 28: Why should tools be returned to their proper storage after use?

To make the area look busier
To avoid having to inspect them
To prevent tripping hazards and keep them in good condition (Correct answer)
To hide them from coworkers

Correct answer: To prevent tripping hazards and keep them in good condition

Proper storage reduces hazards and protects tool condition.

Question 29: What is the Massachusetts minimum liability insurance requirement category that every registered vehicle must carry?

No insurance required
Comprehensive only
Collision only
Compulsory bodily injury, PIP, and property damage coverage (Correct answer)

Correct answer: Compulsory bodily injury, PIP, and property damage coverage

Massachusetts requires compulsory bodily injury liability, personal injury protection (PIP), and property damage coverage.

Question 30: Which of the following documents MUST be kept with the hoisting machinery and be readily available at the site for examination by the Department of Public Safety?

The original bill of sale for the equipment.
A written and signed record of all inspections. (Correct answer)
The operator's DOT medical certificate.
The company's written hoisting safety plan.

Correct answer: A written and signed record of all inspections.

520 CMR 6.08(c)(1) requires that 'A written and signed record of all inspections shall be kept with the hoisting machinery and made available at the site for examination by the Department that conforms with the requirements of 29 CFR 1926.1412.'

Question 31: A technician needs to lift a heavy engine block. Using a pulley system with four rope segments supporting the load, how does the required effort change compared to lifting it directly?

The effort is reduced to one-half of the engine's weight.
The effort is reduced to one-fourth of the engine's weight. (Correct answer)
The effort is doubled.
The effort remains the same as the engine's weight.

Correct answer: The effort is reduced to one-fourth of the engine's weight.

The ideal mechanical advantage (IMA) of a pulley system is equal to the number of rope segments directly supporting the load. In this case, with four supporting ropes, the IMA is 4. This means the required effort to lift the engine is reduced to one-fourth of its actual weight.

Question 32: A left arm held straight out horizontally most clearly indicates which intention?

Stopping
Speeding up
Right turn
Left turn (Correct answer)

Correct answer: Left turn

A horizontally extended left arm signals a left turn.

Question 33: Evaluate: 12 + 6 ÷ 2 × 3.

21 (Correct answer)
30
27
36

Correct answer: 21

Following order of operations: 6 ÷ 2 = 3, 3 × 3 = 9, then 12 + 9 = 21.

Question 34: A technical passage states: 'The efficiency of a mechanical system is the ratio of work output to work input, expressed as a percentage. It is calculated by dividing the Actual Mechanical Advantage (AMA) by the Ideal Mechanical Advantage (IMA) and then multiplying the result by 100.' A technician tests a pulley system and finds it has an IMA of 5 and an AMA of 4. What is the efficiency of this system?

125%
90%
80% (Correct answer)
20%

Correct answer: 80%

Following the formula given in the passage, Efficiency = (AMA / IMA) * 100. Using the provided values: (4 / 5) * 100 = 0.8 * 100 = 80%.

Question 35: In a pneumatic diagram, a symbol shows a circle with a solid, equilateral triangle inside, where the triangle points outwards from the center. What does this component symbol represent?

A filter-regulator unit
A pneumatic motor (Correct answer)
A pressure gauge
An air compressor

Correct answer: A pneumatic motor

According to ISO 1219 standard symbols for fluid power, a circle represents a rotary energy conversion device. A solid triangle indicates the direction of fluid flow (in this case, pneumatic). An outward-pointing triangle signifies an output device, like a motor, which converts pneumatic energy into mechanical motion. An inward-pointing triangle would represent a pump or compressor.

Question 36: If a ground worker observes a crane boom contact an overhead power line, what is the FIRST action they should take?

Dial 911 from a mobile phone while standing near the crane
Warn all personnel in the area to stay away from the crane (Correct answer)
Attempt to pull the operator out of the cab
Grab the crane to stabilize it against the line

Correct answer: Warn all personnel in the area to stay away from the crane

The immediate priority is preventing additional electrocutions; ground workers must clear the area because the ground around an energized crane can itself carry lethal step potential.

Question 37: Which of the following best describes 'excavation' under Dig Safe rules?

Only trenching for pipelines
Any operation that moves earth, rock, or other material below the surface (Correct answer)
Only work done by licensed contractors
Only digging deeper than 10 feet

Correct answer: Any operation that moves earth, rock, or other material below the surface

Excavation broadly includes any activity that disturbs the ground such as digging, trenching, grading, or boring.

Question 38: A formula sheet states: "Flow rate = volume ÷ time." For 60 liters in 2 minutes, the flow rate is:

2 L/min
30 L/min (Correct answer)
120 L/min
60 L/min

Correct answer: 30 L/min

60 liters divided by 2 minutes equals 30 L/min.

Question 39: What color are emergency stop buttons typically?

Green
Red (Correct answer)
Blue
White

Correct answer: Red

Emergency stop buttons are red for high visibility and urgency.

Question 40: When inspecting the windshield wipers, what indicates they need replacement?

A full washer fluid reservoir
A clean windshield
Torn, cracked, or streaking blades (Correct answer)
Newly installed mirrors

Correct answer: Torn, cracked, or streaking blades

Wiper blades that are torn, cracked, or leave streaks fail to clear the windshield properly and should be replaced.

Question 41: A purchase totals $63 including 5% sales tax. What was the pre-tax price?

$58
$61
$60 (Correct answer)
$59.85

Correct answer: $60

Price × 1.05 = $63, so $63 ÷ 1.05 = $60.

Question 42: Who is responsible for marking privately owned underground lines that the utility companies do not own?

The municipality
Dig Safe automatically marks them
The property owner (Correct answer)
No one needs to mark them

Correct answer: The property owner

Dig Safe only covers member utility lines; the property owner is responsible for locating private lines like irrigation or to-a-shed wiring.

Question 43: What is the primary responsibility of a safety watch (spotter) assigned during crane operations near overhead power lines?

To calculate rigging requirements and verify load weights
To operate the load line controls while the operator manages the boom
To inspect all rigging hardware before and after each lift
To monitor the crane boom's clearance from power lines and warn the operator before the minimum distance is breached (Correct answer)

Correct answer: To monitor the crane boom's clearance from power lines and warn the operator before the minimum distance is breached

The safety watch/spotter's sole duty is to maintain visual contact with the power lines and alert the operator whenever the equipment approaches the minimum clearance boundary.

Question 44: In the morning, Harry traveled 45 miles to work in an hour and ten minutes. However, traffic was much heavier on the way home, and the same drive took an hour and a half. What was his round-trip average speed in miles per hour?

33 3/4 mi/hr (Correct answer)
24 mi/hr
35 mi/hr
26 1/4 mi/hr

Correct answer: 33 3/4 mi/hr

To calculate the round-trip average speed, first determine the total distance traveled and the total time taken. The round-trip distance is 45 miles * 2 = 90 miles. The total time is 1 hour 10 minutes (7/6 hours) plus 1 hour 30 minutes (3/2 hours), which sums to 16/6 or 8/3 hours. Finally, divide the total distance (90 miles) by the total time (8/3 hours) to get the average speed, resulting in 33.75 miles per hour, or 33 3/4 mi/hr.

Question 45: What is the correct action if a warning light stays on after starting the vehicle?

Ignore it and continue
Investigate and address the issue before driving (Correct answer)
Drive faster to clear it
Cover the light with tape

Correct answer: Investigate and address the issue before driving

A warning light that remains on indicates a potential problem that should be diagnosed and resolved before driving.

Question 46: OSHA requires the employer to notify the utility company and establish safe minimum approach distances before beginning crane operations within what distance of overhead power lines?

100 feet
50 feet
500 feet
300 feet (Correct answer)

Correct answer: 300 feet

OSHA requires employers to contact the utility and confirm minimum approach distances before beginning crane operations within 300 feet of energized overhead power lines.

Question 47: During a daily inspection of a crane's wire rope, the operator uses the "rag-and-visual" method and discovers several broken wires. According to common safety standards, which of the following conditions is a criterion for immediately removing the wire rope from service?

Twelve randomly broken wires in one lay of the rope. (Correct answer)
Minor kinking that does not affect rope tension.
Any visible sign of surface corrosion.
A reduction in rope diameter by 5% from nominal.

Correct answer: Twelve randomly broken wires in one lay of the rope.

Safety standards, such as those referenced by ANSI and OSHA, specify clear criteria for removing a wire rope from service. One such critical criterion is finding 12 randomly distributed broken wires within a single rope lay. While corrosion, diameter reduction, and kinking are also concerns, the specific number of broken wires is a definitive trigger for immediate replacement to prevent catastrophic failure.

Question 48: When should PPE be inspected?

Once a year
Only after an injury
Never, if it looks new
Before each use (Correct answer)

Correct answer: Before each use

Inspecting PPE before each use ensures it provides protection.

Question 49: When scanning answer choices, a useful elimination clue is a piece that is:

Rotated 180 degrees
The same color as the others
Placed near the top
Clearly a different size than any provided piece (Correct answer)

Correct answer: Clearly a different size than any provided piece

A wrong-sized piece can't belong, so that choice is eliminated immediately.

Question 50: Why are eyewash stations and safety showers located near chemical handling areas?

To test water pressure
For routine cleaning
To cool workers in summer
To provide immediate decontamination after chemical exposure (Correct answer)

Correct answer: To provide immediate decontamination after chemical exposure

Immediate flushing within seconds of chemical contact limits injury to eyes and skin.

Question 51: According to Newton's Third Law of Motion, when a rocket expels hot gases downwards, what is the 'reaction' force?

The force of the gases pushing the rocket upwards. (Correct answer)
The force of air resistance pushing against the rocket.
The force of gravity pulling the rocket down.
The force of the rocket's engine on the gases.

Correct answer: The force of the gases pushing the rocket upwards.

Newton's Third Law states that for every action, there is an equal and opposite reaction. The 'action' is the rocket pushing the hot gases downward. The 'reaction' is the hot gases pushing the rocket upward with an equal and opposite force, causing it to accelerate.

Question 52: If a load weighs more than the net capacity at the current radius, the operator should first try to:

Add the load anyway
Boom down to a longer radius
Disable the load moment indicator
Reduce the radius by booming up so a higher capacity column applies (Correct answer)

Correct answer: Reduce the radius by booming up so a higher capacity column applies

Bringing the load closer (shorter radius) generally raises the rated capacity available.

Question 53: Which component is responsible for keeping the engine from overheating?

The muffler
The fuel pump
The alternator
The cooling system and radiator (Correct answer)

Correct answer: The cooling system and radiator

The cooling system, including the radiator and coolant, regulates engine temperature to prevent overheating.

Question 54: An operator is performing a pre-use inspection on a lattice boom crane and notices that a modification has been made to the boom structure. According to 520 CMR 6.09, what is required for this modification to be considered acceptable?

The modification must be inspected and approved by the site supervisor.
The operator must test the modification with a 125% proof load.
The modification must be recorded in the daily logbook by the operator.
The modification must have the manufacturer's written approval or be certified by a professional engineer. (Correct answer)

Correct answer: The modification must have the manufacturer's written approval or be certified by a professional engineer.

520 CMR 6.09(d) explicitly states that any modification made to hoisting machinery must be done with the manufacturer's written approval. If that cannot be obtained, a professional engineer must create and certify a procedure, which must be added to the equipment's permanent record. This ensures that the equipment's safety factor is not compromised.

Question 55: A signal person gives the 'Hoist' signal, followed by placing one hand motionless in front of the hand giving the 'Hoist' signal. What is the intended meaning of this combined signal?

Move slowly (Correct answer)
Hoist using the auxiliary line
Hoist the load and raise the boom simultaneously
Stop hoisting

Correct answer: Move slowly

Placing a hand in front of the hand giving an action signal indicates that the function should be performed slowly. In this case, it means 'Hoist Slowly'.

Question 56: An operator with a 2A hoisting license needs to renew. They also hold a 1C license. According to Massachusetts regulations, how many total hours of continuing education are required?

6 hours total (2 regulatory, 2 for 2A, 2 for 1C) (Correct answer)
2 hours total, covering general safety
4 hours total (2 for each license)
8 hours total (4 for each license)

Correct answer: 6 hours total (2 regulatory, 2 for 2A, 2 for 1C)

Massachusetts regulations require a specific structure for continuing education when an operator holds multiple licenses. The licensee must complete two hours of regulatory training once, plus two hours of equipment-specific training for each license category. Therefore, a 2A and 1C holder needs 2 (regulatory) + 2 (2A specific) + 2 (1C specific) for a total of 6 hours.

Question 57: Before beginning crane operations near overhead power lines, who is responsible for determining the voltage of those lines?

The on-site safety officer
The crane operator on duty
The local electrical inspector
The employer or lift director (Correct answer)

Correct answer: The employer or lift director

OSHA places the legal responsibility on the employer to identify overhead power line hazards, including determining voltage, before operations begin.

Question 58: Why must an excavator pre-mark the proposed dig site in white before locators arrive?

To indicate gas lines
To clearly show locators the exact area needing to be marked (Correct answer)
To claim ownership of the land
Because the law forbids any other color

Correct answer: To clearly show locators the exact area needing to be marked

White pre-marking helps locators identify and accurately mark only the relevant excavation area.

Question 59: A cylindrical hydraulic reservoir has a radius of 10 centimeters and a height of 40 centimeters. What is the maximum volume of fluid the reservoir can hold, in cubic centimeters? (Use π ≈ 3.14)

12,560 cm³ (Correct answer)
5,024 cm³
1,256 cm³
2,512 cm³

Correct answer: 12,560 cm³

The formula for the volume of a cylinder is V = πr²h. Substitute the given values into the formula: V = 3.14 * (10 cm)² * 40 cm. First, square the radius: 10 cm * 10 cm = 100 cm². Then, multiply the results: V = 3.14 * 100 cm² * 40 cm = 12,560 cm³.

Question 60: In Massachusetts, when is a right turn on red permitted?

Anytime without stopping
Never
Only with a green arrow
After a full stop, unless a sign prohibits it and when safe (Correct answer)

Correct answer: After a full stop, unless a sign prohibits it and when safe

Right on red is allowed after a complete stop and yield, unless a posted sign prohibits it.

Question 61: A lever pivots on a fulcrum. Moving the load closer to the fulcrum makes lifting it:

Easier (Correct answer)
Harder
Impossible
Unchanged

Correct answer: Easier

A load nearer the fulcrum requires less effort to lift.

Question 62: Which type of gear is best suited for transmitting power between two non-intersecting, non-parallel shafts, often at a right angle?

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

Correct answer: Worm Gear

Worm gears are specifically designed to transmit power at a right angle between two shafts that do not intersect. They are also known for providing large gear reductions and high torque.

MASS Test

The MASS Test exam validates essential knowledge and skills required for certification or licensure in this field.

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60 min

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