Freeze before other road surfaces.

Freeze, but only once the temperature drops significantly below 32 degrees Fahrenheit.

Freeze after other road surfaces freeze.

Have heaters to prevent them from freezing.

Massachusetts CDL Knowledge Test Class A 1 - DMV Written Test Questions with Answers

Q.1

Which of the following is not a backing maneuver that you will be asked to perform during the basic control skills test?

Straight line backing
Offset back/right
Offset back/left
Blind offset

Q.2

On a leaf spring, the leaves:

May be broken.
Are not required.
Should not be broken.
Should shift.

Q.3

Bridges usually:

Freeze, but only once the temperature drops significantly below 32 degrees Fahrenheit.
Freeze after other road surfaces freeze.
Freeze before other road surfaces.
Have heaters to prevent them from freezing.

Q.4

When driving, the steering wheel should be:

Held with one hand.
Held with both hands on opposite sides of the wheel.
Held with both hands at the bottom of the wheel.
Held with both hands at the top of the wheel.

Q.5

When you leave your vehicle, you should:

Apply the parking brake.
Apply the regular brake.
Leave the keys in the ignition.

Q.6

In cold weather, an alcohol evaporator should be checked and filled:

Once a month.
Once a week.
Every day.
Every hour.

Q.7

Applying the brake pedal causes air pressure to activate an electric switch and:

Turn off the brake lights.
Turn on the low pressure warning light.
Turn on the brake lights.
Turn off the low pressure warning light.

Q.8

Which of the following is not a part of an air brake system?

A service brake system
A parking brake system
An emergency brake system
An axle brake system

Q.9

Which of the following is most likely to result in hydroplaning?

Using tires with worn tread
Using properly inflated tires
Using new tires
Traveling at speeds under 10 mph

Q.10

Eating while driving:

Is a good way to maximize time.
Is encouraged on long trips.
Creates a distraction for the driver.
Is mandatory so cargo is not left unsupervised.

Q.11

When about to drive a vehicle with a dual brake system, a driver should:

Let the vehicle warm up to ensure the fuel reaches the engine.
Wait for air pressure to build in both the primary and secondary systems.
Begin driving just after the engine starts.
Pump the pedal about 20 times to build pressure, then begin driving.

Q.12

Brakes can get out of adjustment:

If they are hot.
During the winter.
If they are used at all.
If brakes on one side are used more often than brakes on the other side.

Q.13

If you are being tailgated, you should:

Drive on the shoulder.
Pull off the roadway.
Drive faster.
Allow the vehicle to pass.

Q.14

During the pre-trip inspection test, you will be:

Expected to explain your knowledge of the pre-trip process.
Watching someone else check your vehicle.
Watching a film on how to inspect a vehicle.
Changing all the tires on your vehicle.

Q.15

A thin layer of ice that forms on road surfaces is called:

White ice.
Black ice.
Green ice.
Blue ice.

Q.16

When making tight maneuvers, it is important for a driver to:

Open the door for a better look.
Use their mirrors.
Flash their headlights.
Open their cargo door.

Q.17

Most heavy-duty vehicles use:

Single air brake systems.
Dual air brake systems.
Triple air brake systems.
Quadruple air brake systems.

Q.18

Hydroplaning occurs when:

Tires lose traction with the surface of the road.
Tires have increased traction with the surface of the road.
Front tires have more traction that rear tires.
Front tires have less traction than rear tires.

Q.19

When asked to complete a driver's side parallel parking maneuver, you should:

Pass the parking space while backing, then pull forward into it.
Pull forward past the parking space, then back into it.
Pull forward into the parking space without passing it first.
Back into the parking space without passing it first.

Q.20

After a trailer starts to turn during backing, you should follow the trailer by:

Doing nothing. The vehicle will follow naturally.
Changing the direction of the steering wheel.
Turning the steering wheel farther in its current direction.
Using the brakes.

Q.21

If you are not sure if there is enough space for your vehicle to safely pass under a bridge, you should:

Speed up.
Swerve as you pass under the bridge.
Slow down.
Drive on the shoulder.

Q.22

Slippery roadways usually:

Make it more difficult to stop a vehicle.
Make it easier to stop a vehicle.
Make it easier to drive a vehicle.
Can be avoided by driving at night.

Q.23

While operating a CMV:

You are not required to wear a safety belt.
You are only required to wear a safety belt if your vehicle does not have airbags.
You are required to wear a safety belt, but only if hauling more than 1,000 pounds of cargo.
You are always required to wear a safety belt.

Q.24

To help your vehicle be seen by others:

Your headlights should be clean.
Your headlights should be turned off during the day.
Your headlights should be covered with grease.
Your headlights should be used, but only in the rain.

Q.25

While driving, spring brakes are generally held in place by:

Air pressure.
Chocks.
Foundation brakes.
Sturdy ties.

Q.26

When checking the engine compartment:

The parking brake should not be engaged.
Wheels should be chocked.
The engine should be running.
The gearshift should be in first gear.

Q.27

If the air pressure warning light comes on, you should:

Continue driving normally.
Activate your hazard lights and continue driving.
Call the local law enforcement agency.
Safely exit the roadway and stop.

Q.28

What is the minimum permitted size of a placard?

Four square inches
Seven square inches
10 ¾ square inches
32 square inches

Q.29

On a truck with air brakes, the braking system’s air compressor:

Pumps air into the air storage tanks.
Fills the tires.
Moves air to the back of the truck.
Cleans the brakes.

Q.30

What is aggressive driving?

Operating a vehicle in a selfish or pushy manner
Operating a vehicle with some regard for other motorists’ safety
Operating a vehicle in the left lane
Operating a loud vehicle

Q.31

In an engine compartment, loose belts will:

Not turn the water pump and/or fan properly, causing the engine to overheat.
Make the engine run more efficiently.
Make the fan run too much, causing the engine to run too coolly.
Last longer than tight belts.

Q.32

When asked to complete an offset back/right parking maneuver, you should:

Pull straight forward, then back to the right.
Pull straight forward, then back to the left.
Pull forward to the right, then back in a straight line.
Pull forward to the left, then back in a straight line.

Q.33

If your truck or trailer catches fire, you should:

Park in a congested area near trees.
Pull into a service station.
Park near other vehicles.
Park in an open area.

Q.34

When driving in heavy traffic, you should:

Use hands-free cellular devices.
Use your cell phone for texting instead of calling.
Not use your cell phone.
Turn up the ringer on your cell phone.

Q.35

How is the parking brake released?

By tapping on the brake pedal three times
By pushing in the brake control knob
By engaging the accelerator
By tapping the accelerator twice

Q.36

The drive shaft should:

Be bent toward the passenger side.
Be bent toward the driver’s side.
Be bent to one side or the other.
Not be bent.

Q.37

If federal inspectors judge your vehicle to be unsafe, they can:

Bring you to a garage to have your vehicle fixed.
Formerly request that you have your vehicle's problems fixed.
Call a mechanic.
Pull the vehicle out-of-service until it is fixed.

Q.38

When entering a curve, you should:

Get off the roadway.
Use the shoulder.
Downshift.
Take the vehicle out of gear.

Q.39

If being shipped on either a flatbed trailer or a trailer without sides, cargo must be:

Glued to the bed.
Strapped down.
Loose to allow it to shift when the vehicle turns.
Heavy enough that it won’t shift.

Q.40

When carrying a sealed load, the driver:

Should inspect the contents.
Should ensure the weight of the cargo does not violate weight limits.
Must go through each container.
Should unseal the load to ensure safety.

Q.41

When using your mirrors, you should frequently look at your tires to:

Watch for tire fires.
See if the tires are rolling properly.
See if the tread is sufficient.
Get a sense of the size of the tire in relation to other vehicles.

Q.42

When checking the springs during a vehicle inspection, do all of the following, except:

Look for missing leaf springs.
Look for broken coil springs.
Ensure torsion springs are not damaged.
Glue cracked leaf springs.

Q.43

During a static leakage test, the maximum leakage rate for a single vehicle with air brakes is ____ in one minute.

1 psi
2 psi
3 psi
4 psi

Q.44

When traveling with cargo, you must make sure the cargo is secure:

No more than two times.
Every 150 miles or three hours of driving.
Only after traveling up a hill.
Only after coming to a hard stop.

Q.45

When covering cargo, a cover that flaps in transit:

Is acceptable.
Allows air to get to the cargo to keep it cool.
Can tear away.
Can attract birds.

Q.46

After a tire has been changed, the driver should stop after a short distance to:

Check the tightness of the lug nuts.
Check the wear of the tire.
Check the level of windshield wiper fluid.
Check the air pressure of the tire.

Q.47

To use the stab braking method, you should:

Apply the brakes completely until the wheels lock up, release the brakes until the wheels start rolling, then repeat the process.
Apply the brakes about halfway, but allow the wheels to keep rolling.
Apply the brakes completely until the wheels lock up and the vehicle stops.
Apply the emergency brake until the vehicle starts to slow.

Q.48

When driving with a load, the driver should:

Stop and check on the cargo within the first 50 miles of the trip.
Ask other drivers about the condition of their load.
Use the side mirrors only to check on the cargo.
Not check on the cargo if it was secured properly before starting the trip.

Q.49

During the straight line backing exercise, how many times are you permitted to exit the vehicle to check its position?

One time
Two times
Three times
Four times

Q.50

After starting a trip while transporting cargo:

You will not need to inspect the cargo.
The cargo should only be inspected if it is making noise.
The cargo should only be inspected if there is an obvious concern.
The cargo should be inspected after 50 miles on the road to ensure it is still properly secured.