Protect the driver from being hit by cargo.

Protect the driver's head when entering the cab of a truck.

Are used to drain water and oil from an air tank.

Allow rain water to enter an air tank.

Must remain open during driving.

Massachusetts CDL Knowledge Test Class B 2 - DMV Written Test Questions with Answers

Q.1

When starting the vehicle during the pre-trip inspection, the coolant temperature should:

Decrease.
Rise slowly.
Hold steady.
Jump quickly.

Q.2

If your vehicle is hydroplaning, you should:

Speed up.
Not apply the brakes.
Put the vehicle in reverse.
Turn the steering wheel as hard as possible.

Q.3

When approaching a railroad crossing, you should:

Increase your speed to get across the tracks as quickly as possible.
Roll your window down to listen for a train.
Rely on traffic control signals.
Never try to outdrive an approaching train.

Q.4

When driving down a steep grade, your brakes may fade. What happens if brakes fade?

They become quieter.
They become less effective.
They work better than usual.
They work differently from front to back.

Q.5

When it is difficult for others to see your vehicle, such as at dawn or dusk, you can help other drivers by:

Keeping your lights off.
Turning your lights on.
Driving on the shoulder.
Waving an arm out the window.

Q.6

Looking far ahead of your vehicle while driving is:

Discouraged, as there is little you can do about something far up the road.
Encouraged to help you identify hazards as early as possible.
Not allowed.
Only encouraged if you are transporting hazardous materials.

Q.7

The height of a vehicle’s center of gravity:

Usually has no impact on the handling the vehicle.
Plays a large role in a driver's ability to safely handle the vehicle.
Should not be a concern when loading the vehicle.
Should only be a concern if there are lots of hills on the planned route.

Q.8

To make it as safe as possible to leave a stop, you should park:

So that you must back up to leave your parking space.
So that you can pull forward to leave your parking space.
On the side of a roadway, not in a parking lot.
By backing into a parking space.

Q.9

When starting the engine as part of the pre-trip inspection, the driver should:

Listen for unusual noises.
Rev the engine.
Turn up the radio.
Turn on the heater.

Q.10

Header boards:

Should never be used.
Protect the driver from being hit by cargo.
Protect the driver's head when entering the cab of a truck.
Provide extra storage.

Q.11

When should you check and adjust your mirrors?

Before starting a trip
While driving
After a trip
Mirrors do not need to be adjusted.

Q.12

If something is found to be unsafe during a pre-trip inspection, you should:

Continue with the trip and make an appointment with a mechanic after the trip is completed.
Let a more experienced driver use the truck.
Get the issue fixed immediately.
Not use the items found to be unsafe, but may continue driving normally.

Q.13

What happens if brakes become too hot?

They will become too smooth.
They will harden.
They may stop working.
The air compressor will kick in to cool the brakes

Q.14

A vehicle equipped with an Anti-Lock Braking System (ABS) can be identified by:

A sticker on the control panel.
A yellow lamp on the instrument panel.
The letters "ABS" on the brake pedal.
A metal plate on the inside of the driver’s side door.

Q.15

To make a stop in a vehicle using air brakes, the driver should:

Press down the brake pedal.
Lift the brake pedal toward them.
Push in the brake knob.
Pull out the brake knob.

Q.16

When approaching an active railroad crossing:

You should expect to hear any approaching train.
You may not hear a train as it approaches.
You will hear two short blasts of the train's horn.
There will always be flashing warning lights.

Q.17

What is a concern immediately after it begins raining?

The water will mix with grease and oil on the road, making the roadway slippery.
A driver may forget where the windshield wiper lever is located.
It may stop raining.
People will be using their windshield wipers needlessly.

Q.18

Spring brakes come on:

When too much air pressure is lost.
When a control on the dashboard is activated.
When the tires have minimal tread depth.
When the brakes are noisy.

Q.19

When encountering fog, you will be safest if you:

Stay in the left lane.
Don’t drive in the fog.
Use your low beam lights.
Follow the vehicle ahead of you closely.

Q.20

Once cargo is secured:

You may complete an entire trip without checking it.
You can drive at least eight hours without checking it.
You should check it every three hours or 150 miles.
You should not check it.

Q.21

What does an Anti-Lock Braking System (ABS) do?

Allow the rear wheels to lock up
Allow all wheels to lock up
Help prevent wheel lockup
Alert other motorists when you are braking

Q.22

After a vehicle is started, warning lights and buzzers:

Should stay on for several minutes.
Should turn off within a few seconds.
Should stay on until manually turned off.
Should remain on.

Q.23

When exiting your vehicle, you must maintain ____ with the vehicle at all times.

One point of contact
Four points of contact
Three points of contact
Two points of contact

Q.24

If the brake pads rub against the brake drums and create too much heat:

The brakes will stick.
The brakes will become extra sensitive.
The brakes may stop working.
The air compressor will kick on to cool the brakes.

Q.25

When checking the power steering fluid during a vehicle inspection, you will need to do each of the following, except:

Show where the power steering fluid dipstick is located.
Check for adequate power steering fluid.
Ensure that the power steering fluid level is above the full mark.
Ensure that the power steering level is above the refill mark.

Q.26

One way to overcome the challenges of blind spots is to:

Drive faster than surrounding vehicles so no other drivers can pass you.
Drive in the left lane, allowing you to only worry about vehicles to your right.
Make frequent mirror checks and assess the positions of surrounding vehicles.
Avoid using your mirrors.

Q.27

If confronted by an aggressive driver, you should:

Make eye contact with the driver.
React to the driver's gestures.
Challenge the driver to a road race.
Ignore the driver, if possible.

Q.28

While driving a vehicle, if an unusual noise or feeling occurs, the driver should:

Assume it is not a concern and continue driving.
Hope the vehicle makes it until it is switched to another driver.
Check the vehicle to determine the proper solutions.
Drive on the shoulder.

Q.29

When driving on packed snow, you should reduce your speed:

By at least one-half.
By about one-third.
By about one-quarter.
By about one-eighth.

Q.30

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.31

To use the controlled braking method, you should:

Apply the brakes as hard as possible without locking the wheels.
Apply the brakes with about half-force.
Apply the brakes until the wheels lock.
Pump the brakes.

Q.32

What happens when a vehicle hydroplanes?

The tires lose contact with the road.
The tires have extra traction.
The vehicle is easier to control.
The vehicle becomes heavier.

Q.33

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.34

The Individual Vehicle Distance Record (IVDR) must include all of the following, except:

The date of trip.
The route of travel.
The total distance traveled.
The number of stops.

Q.35

Sending text messages while driving:

May be done if the messages are short.
Is encouraged.
Is permitted if you are asking a question of your employer.
Is not permitted.

Q.36

Most CDL holders have ____ licenses.

Excepted
Exempted
Non-excepted
Non-exempted

Q.37

If you need to travel down a hill, you should switch into a lower gear:

After you start moving downhill.
As you go downhill and pick up speed.
Before you start moving downhill.
Near the bottom of the hill.

Q.38

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.39

Placards should be used:

Any time a vehicle is carrying hazardous materials.
If there is open space in the truck.
If the amount of hazardous materials in the truck exceeds 200 pounds.
If the hazardous materials create an inhalation hazard.

Q.40

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.41

When traction is poor, a driver should accelerate slowly:

Because it is best to always accelerate very slowly.
So they do not lose control of their vehicle.
So the driver does not accelerate faster than the vehicle ahead.
To be the last vehicle through an intersection.

Q.42

Where can you find the tire load rating?

On the inside of the driver’s door
On the dashboard
On the side of each tire
Under the hood

Q.43

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.44

Air tank drains:

Allow rain water to enter an air tank.
Are used to drain water and oil from an air tank.
Should never be opened.
Must remain open during driving.

Q.45

Which of the following can help you determine when to upshift?

Road speed
Engine speed
Both of the above
None of the above

Q.46

If exiting a bus during the basic vehicle control skills test, you must:

Keep both hands on the handrail.
Not touch the handrail.
Maintain a firm grasp on the handrail.
Rush down the stairs.

Q.47

How many seconds of following distance per every 10 feet of vehicle should you maintain when traveling more slowly than 40 mph?

One second
Two seconds
Three seconds
Four seconds

Q.48

When doing an inspection, ensure that the brake pads are:

Covered with grease.
Covered with coolant.
Covered with oil.
Free of oil or grease.

Q.49

When doing an inspection, make sure your brake pads are:

Covered in grease.
Covered in coolant.
Covered in oil.
Free of oil and grease.

Q.50

When using mirrors while driving, you should:

Look in the mirrors quickly.
Look in the mirrors for extended periods of time.
Use only the rearview mirror.
Use only the driver’s side mirror.