MASS Test — Questions and Answers

Question 1: According to Massachusetts regulations, how often must a licensed hoisting machinery operator renew their license?

Every year
Every 2 years (Correct answer)
Every 3 years
Every 5 years

Correct answer: Every 2 years

Massachusetts General Law and the regulations set forth by the Office of Public Safety and Inspections (OPSI) require hoisting engineer licenses to be renewed every two years.

Question 2: What is the correct way to test the parking brake?

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

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

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

Correct answer: 30 mpg

180 ÷ 6 = 30 miles per gallon.

Question 4: Complete the pattern: A, C, E, G, ___?

K
I (Correct answer)
H
J

Correct answer: I

The letters skip one each time, so after G comes I.

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

11
21
27 (Correct answer)
32

Correct answer: 27

2 × 16 − 5 = 32 − 5 = 27.

Question 6: What is the primary purpose of a confined space entry permit in a power plant?

To track tool inventory
To verify atmospheric testing and rescue provisions before entry (Correct answer)
To schedule overtime
To log visitor access

Correct answer: To verify atmospheric testing and rescue provisions before entry

The permit confirms the space has been tested for hazardous atmospheres and that rescue and ventilation measures are in place.

Question 7: 5,968 watts are needed by an elevator motor to drive the elevator. How many horsepower does the elevator's electric motor have?

20
9
8 (Correct answer)
16

Correct answer: 8

To convert watts to horsepower, you divide the number of watts by the conversion factor of 746 watts per horsepower. Therefore, an elevator motor requiring 5,968 watts has 5968 / 746 = 8 horsepower.

Question 8: What does the acronym 'APWA' stand for in the context of utility marking colors?

American Pipe Workers Alliance
Approved Pipeline Warning Authority
Association of Power and Water Agencies
American Public Works Association (Correct answer)

Correct answer: American Public Works Association

The American Public Works Association established the uniform color code used for utility markings.

Question 9: What is 'step potential' and why does it pose a hazard near an energized crane?

The electrical resistance of the crane's tracks that prevents proper grounding
The voltage required to start the crane engine, which varies with temperature
The mechanical force needed to climb crane steps; it increases risk of falls
A voltage difference between two ground contact points that drives current through a person's legs and body (Correct answer)

Correct answer: A voltage difference between two ground contact points that drives current through a person's legs and body

Step potential is the voltage difference between two points on the ground energized by a fault current; a person standing with feet apart creates a circuit through their body, causing electrocution.

Question 10: What color marks potable (drinking) water lines?

Purple
Blue (Correct answer)
White
Green

Correct answer: Blue

Blue marks potable drinking water lines under the APWA uniform color code.

Question 11: What is the correct response to a chemical spill you cannot safely contain?

Pour water over it immediately
Continue working at a distance
Clean it with paper towels
Evacuate the area and notify the supervisor (Correct answer)

Correct answer: Evacuate the area and notify the supervisor

Large or unknown spills require evacuation and trained response.

Question 12: What is a sign that a vehicle's battery may need attention?

A full fuel tank
Slow engine cranking or corroded terminals (Correct answer)
A clean windshield
Properly inflated tires

Correct answer: Slow engine cranking or corroded terminals

Slow cranking and corroded terminals are common signs of a weak or failing battery.

Question 13: How many individual blocks are in the stack shown, including any that are completely hidden from view? (Image of a stack of cubes, some hidden, would be here)

12
9
11
10 (Correct answer)

Correct answer: 10

To find the total, count the blocks in each column. The back-left column is 3 blocks high. The back-right column is 2 blocks high. The middle column is 2 blocks high (one hidden under the top one). The front-left column is 2 blocks high. The front-right block is a single block. The sum is 3 + 2 + 2 + 2 + 1 = 10 blocks.

Question 14: A load moment indicator (LMI) primarily helps the operator by:

Measuring fuel level
Controlling cab climate
Warning when the load approaches or exceeds the rated capacity for the current configuration (Correct answer)
Setting the engine speed

Correct answer: Warning when the load approaches or exceeds the rated capacity for the current configuration

The LMI monitors load, radius, and angle to alert the operator before rated capacity is exceeded.

Question 15: Which two factors are typically used together to locate a rated capacity on a load chart?

Load radius and boom length (Correct answer)
Engine RPM and oil pressure
Wind speed and temperature
Tire pressure and axle weight

Correct answer: Load radius and boom length

Most capacity values are read at the intersection of the load radius and the boom length on the chart.

Question 16: When checking the engine oil level, the dipstick reading should be:

Between the minimum and maximum marks (Correct answer)
Below the minimum mark
Completely dry
Above the maximum mark

Correct answer: Between the minimum and maximum marks

Oil should register between the minimum and maximum marks on the dipstick for proper engine lubrication.

Question 17: An operator is instructed by a signal person to lift a load that the operator believes exceeds the crane's rated capacity. What is the correct course of action?

Proceed with the lift but document the concern in the daily log.
Attempt the lift slowly while monitoring the load moment indicator (LMI).
Refuse to handle the load until safety has been assured. (Correct answer)
Ask the signal person to double-check the load's weight before proceeding.

Correct answer: Refuse to handle the load until safety has been assured.

According to 520 CMR 6.08(c)(10), 'The operator shall be responsible for those operations under their direct control. When there is any doubt as to the safety of any action, the operator shall have the authority to stop and refuse to handle loads until safety has been assured.' The operator has the final authority and responsibility for safe operation.

Question 18: When should the hand signal be completed?

Long after the maneuver
It does not matter
Only during the maneuver
Before you begin the maneuver (Correct answer)

Correct answer: Before you begin the maneuver

Signals should be given before beginning the maneuver so others can prepare.

Question 19: A worker notices steam escaping from a high-pressure line joint. What is the correct first action?

Stand closer to assess the temperature
Evacuate the area and report it through proper channels (Correct answer)
Spray water on the leak
Tighten the joint immediately by hand

Correct answer: Evacuate the area and report it through proper channels

High-pressure steam can cause severe burns, so personnel should leave the area and report the hazard for controlled isolation.

Question 20: When unfolding a folded paper that was punched once while folded in half, the holes will appear:

As a single hole
Symmetrically on both halves (Correct answer)
Randomly placed
Only on the fold line

Correct answer: Symmetrically on both halves

Punching through folded paper creates mirror-image holes on each half.

Question 21: Solve for x: 3x + 7 = 22.

7
15
3
5 (Correct answer)

Correct answer: 5

3x = 15, so x = 5.

Question 22: What information does the 'range diagram' portion of crane documentation provide?

Tire replacement schedule
Only the fuel capacity
The paint color codes
The relationship between boom length, boom angle, radius, and lift height (Correct answer)

Correct answer: The relationship between boom length, boom angle, radius, and lift height

The range diagram shows how boom length and angle translate into radius and available lifting height.

Question 23: A technician needs to calculate the surface area of a rectangular plate that requires a special coating. The plate measures 1.5 feet by 2.5 feet. However, there is a circular hole in the middle with a radius of 3 inches that does not need to be coated. What is the approximate surface area to be coated in square inches? (Use π ≈ 3.14)

42.00 sq in
512.00 sq in
540.00 sq in
511.74 sq in (Correct answer)

Correct answer: 511.74 sq in

First, convert the plate dimensions to inches: 1.5 ft * 12 in/ft = 18 inches; 2.5 ft * 12 in/ft = 30 inches. The total rectangular area is 18 in * 30 in = 540 sq in. Next, calculate the area of the circular hole: A = πr² = 3.14 * (3 in)² = 3.14 * 9 sq in = 28.26 sq in. Finally, subtract the hole's area from the total area: 540 sq in - 28.26 sq in = 511.74 sq in.

Question 24: If a train travels 180 miles in 3 hours, what is its average speed?

55 mph
65 mph
60 mph (Correct answer)
45 mph

Correct answer: 60 mph

Speed = distance ÷ time = 180 ÷ 3 = 60 mph.

Question 25: When a 2D net of a cube is folded, two faces that share an edge on the net will:

Be adjacent on the finished cube (Correct answer)
Always end up opposite each other
Disappear into the interior
Become the top and bottom only

Correct answer: Be adjacent on the finished cube

Faces sharing an edge on a net remain adjacent after folding.

Question 26: What is the danger of bypassing an interlock on rotating equipment?

It reduces noise
It removes a safety stop that prevents access to moving parts (Correct answer)
It saves electricity
It improves lubrication

Correct answer: It removes a safety stop that prevents access to moving parts

Interlocks stop equipment when guards are opened, and bypassing them exposes workers to dangerous moving parts.

Question 27: In a series of three meshed gears, the first and third gears turn:

At random
The same direction (Correct answer)
Both stop
Opposite directions

Correct answer: The same direction

An odd number of meshed gears makes the first and last turn the same way.

Question 28: In Massachusetts, what is the penalty consequence of refusing a breathalyzer test for a first-offense driver age 21+?

Immediate license revocation for life
30-day suspension
180-day license suspension (Correct answer)
No penalty

Correct answer: 180-day license suspension

A first chemical-test refusal results in a 180-day license suspension under implied consent.

Question 29: What should a rigger check on a shackle before use?

Whether it matches the hook shape
The color and finish only
Only the outer body for cracks
The pin is fully seated, moused, and the WLL is legible (Correct answer)

Correct answer: The pin is fully seated, moused, and the WLL is legible

Riggers must verify the shackle pin is fully threaded and secured (moused), and confirm the Working Load Limit marking is readable.

Question 30: Complete the analogy: Saw is to cutting as drill is to ___.

Painting
Welding
Boring (Correct answer)
Sanding

Correct answer: Boring

A drill is used for boring holes, just as a saw is used for cutting.

Question 31: Which fraction is equivalent to 0.6?

5/8
2/3
2/5
3/5 (Correct answer)

Correct answer: 3/5

0.6 = 6/10 = 3/5.

Question 32: Which of the two containers will allow water to cool more slowly after reaching the same temperature after boiling it?

Both
Container B (Correct answer)
Container A

Correct answer: Container B

The rate at which water cools depends on factors like the container's surface area, material, and insulation. To cool more slowly, a container needs to minimize heat transfer to the environment. This is typically achieved by having a smaller surface area-to-volume ratio, or by being made of materials with better insulating properties, which would allow Container B to retain heat longer.

Question 33: A correct mirror-image trap answer is wrong because:

It changes the line color
It uses too few pieces
It is rotated too far
A flipped piece is not the same as a rotated piece (Correct answer)

Correct answer: A flipped piece is not the same as a rotated piece

Mirroring (flipping) a piece creates a different shape that cannot be made by rotation alone.

Question 34: A connecting line in the answer is the wrong length. This means:

The answer is still correct
The endpoints don't sit on the correct labeled points (Correct answer)
The shapes are too small
One shape was removed

Correct answer: The endpoints don't sit on the correct labeled points

A mismatched line length shows the endpoints aren't on the marked points.

Question 35: A combination lock has a three-digit code. Each digit can be any of the ten integers ranging from 0 to 9. How many possible combinations are there?

200
500
100
1000 (Correct answer)

Correct answer: 1000

For a three-digit code where each digit can be any of the ten integers from 0 to 9, you have 10 independent choices for each position. Therefore, the total number of possible combinations is found by multiplying the number of choices for each digit: 10 * 10 * 10 = 1000.

Question 36: What is the correct action when you witness an unsafe act by a coworker?

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

Correct answer: Stop the activity and report it

Intervening and reporting unsafe acts prevents injuries.

Question 37: Under OSHA 29 CFR 1926.251, who is responsible for inspecting rigging equipment before each use?

The site safety officer
The rigging manufacturer's representative
The crane operator only
A competent person (Correct answer)

Correct answer: A competent person

OSHA requires that rigging equipment be inspected before each use by a competent person who can identify unsafe conditions.

Question 38: Before backing up a vehicle in a busy yard, the driver should:

Reverse quickly to save time
Rely only on the rearview mirror
Check mirrors, use a spotter, and signal (Correct answer)
Honk and proceed without looking

Correct answer: Check mirrors, use a spotter, and signal

Spotters and signals prevent backing-related collisions.

Question 39: A notice reads: "Authorized personnel only beyond this point." An unauthorized worker should:

Enter freely
Enter after hours
Not enter (Correct answer)
Enter with a tool

Correct answer: Not enter

Only authorized personnel may pass, so others should not enter.

Question 40: When a piece has a notch cut into it, the matching piece should have:

No special feature
A protrusion that fills that notch (Correct answer)
A larger identical notch
A flipped notch on the opposite side

Correct answer: A protrusion that fills that notch

A notch is filled by a complementary protrusion on the joining piece.

Question 41: What should a worker do if a colleague collapses inside a confined space?

Activate the rescue plan and summon trained rescuers without entering unprotected (Correct answer)
Open a window for ventilation only
Immediately enter to pull them out
Wait for the next shift

Correct answer: Activate the rescue plan and summon trained rescuers without entering unprotected

Untrained entry is a leading cause of multiple fatalities, so the rescue plan and trained responders must be activated.

Question 42: To signal a left turn using hand signals, how should you position your arm?

Arm pointing straight down
Arm extended straight out to the left (Correct answer)
Arm bent upward at the elbow
Arm bent downward at the elbow

Correct answer: Arm extended straight out to the left

A left turn is signaled by extending the left arm straight out horizontally.

Question 43: A gear with 20 teeth meshes with a gear of 40 teeth. If the small gear turns twice, how many turns does the large gear make?

4 turns
0.5 turns
1 turn (Correct answer)
2 turns

Correct answer: 1 turn

The larger gear turns at half the rate, so two turns of the small gear equal one turn of the large gear.

Question 44: What color marking indicates gas, oil, steam, or petroleum pipelines?

Green
Red
Yellow (Correct answer)
Purple

Correct answer: Yellow

Yellow marks gas, oil, steam, petroleum, and other gaseous or flammable materials under the APWA color code.

Question 45: Simplify: 4(x + 3) - 2x.

2x + 3
6x + 12
2x + 12 (Correct answer)
2x + 7

Correct answer: 2x + 12

Distribute to get 4x + 12 - 2x = 2x + 12.

Question 46: Which number completes the sequence: 2, 6, 12, 20, 30, ___?

42 (Correct answer)
36
40
44

Correct answer: 42

The gaps increase by 2 each time (4, 6, 8, 10, 12), so 30 + 12 = 42.

Question 47: Why should the exhaust system be inspected for leaks?

It improves stereo sound
It cleans the windshield
It increases tire grip
Leaks can allow dangerous fumes into the cabin (Correct answer)

Correct answer: Leaks can allow dangerous fumes into the cabin

Exhaust leaks can let harmful gases such as carbon monoxide enter the passenger compartment.

Question 48: What is √81?

9 (Correct answer)
8
7
11

Correct answer: 9

9 × 9 = 81, so √81 = 9.

Question 49: A bag has 3 red and 2 blue marbles. What is the probability of drawing red?

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

Correct answer: 3/5

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

Question 50: When a sling is used in a basket hitch, how does the rated load capacity change compared to a straight vertical hitch?

It increases by 10%
It increases up to 2 times (Correct answer)
It decreases by 50%
It remains the same

Correct answer: It increases up to 2 times

A basket hitch distributes the load across two legs, which can increase the rated capacity up to twice that of a single vertical hitch.

Question 51: As the load radius increases on a mobile crane, the rated capacity generally:

Stays the same
Doubles
Increases
Decreases (Correct answer)

Correct answer: Decreases

Capacity drops as the load moves farther from the center of rotation because leverage on the crane increases.

Question 52: When two shapes are congruent, they have:

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

Correct answer: Same shape and size

Congruent shapes match in both shape and size.

Question 53: What should an excavator do if a marked utility line is damaged during digging?

Cover it and finish the job
Wait until the next business day to report it
Repair it themselves and continue
Stop work and immediately notify the utility owner and Dig Safe (Correct answer)

Correct answer: Stop work and immediately notify the utility owner and Dig Safe

Damaged lines must be reported immediately to the utility owner; gas leaks or electric contact also warrant calling 911.

Question 54: Within what distance of a marked underground facility must you dig by hand or with non-mechanical means (the tolerance zone)?

6 inches on either side
18 inches on either side (Correct answer)
3 feet on either side
5 feet on either side

Correct answer: 18 inches on either side

Massachusetts requires hand digging within the tolerance zone of 18 inches on each side of the marked line.

Question 55: In a connection question, both labeled points are on the interior of their shapes. The correct line:

Connects to the nearest corners
Skips one of the points
Runs edge to edge instead
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 56: Which factor is most critical when selecting a sling for a high-temperature environment?

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

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 57: Before operating a forklift, what should the operator do first?

Conduct a pre-operation inspection (Correct answer)
Begin lifting loads immediately
Remove the seatbelt
Sound the horn continuously

Correct answer: Conduct a pre-operation inspection

A pre-operation inspection identifies defects before the equipment is used.

Question 58: What does a red color code on a rigging sling typically indicate?

The sling is approved for overhead lifts only
The sling was last inspected in Q1
The sling's capacity is 3/8 inch or a specific load rating per the manufacturer's color system (Correct answer)
The sling is out of service

Correct answer: The sling's capacity is 3/8 inch or a specific load rating per the manufacturer's color system

Color coding on slings typically corresponds to the sling size or capacity per the manufacturer's or industry color identification system, with red commonly indicating a specific size rating.

Question 59: What is the correct response to a turbine vibration alarm exceeding safe limits?

Ignore it until the next inspection
Increase the load to dampen vibration
Disable the alarm
Follow procedures to investigate and trip the unit if required (Correct answer)

Correct answer: Follow procedures to investigate and trip the unit if required

Excessive vibration can indicate mechanical failure, so operators must investigate and trip the unit if limits are exceeded.

Question 60: When should defects found during an inspection be reported or repaired?

Only at the end of the year
Never, if the vehicle still moves
Before operating the vehicle (Correct answer)
Only after an accident

Correct answer: Before operating the vehicle

Safety-related defects should be reported and repaired before the vehicle is operated.

Question 61: An operator holds a valid Massachusetts 1C hoisting license. Which of the following pieces of equipment are they permitted to operate?

An excavator and a backhoe
A hydraulic telescoping boom without wire rope and a forklift (Correct answer)
A lattice boom crane
A telescoping boom crane with wire rope

Correct answer: A hydraulic telescoping boom without wire rope and a forklift

A Class 1C license in Massachusetts specifically covers equipment with hydraulic telescoping booms without wire ropes, as well as forklifts. Class 1A is required for lattice cranes, 1B for telescoping booms with wire rope, and Class 2 licenses (like 2A or 2B) are required for excavators and backhoes.

Question 62: What is the average of 14, 22, 18, and 26?

22
18
24
20 (Correct answer)

Correct answer: 20

The sum is 80, divided by 4 equals 20.

MASS Test

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

Questions

60 min

Time Limit

70%

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