Are more likely to roll over than empty rigs.

Are less likely to roll over than empty rigs.

Are just as likely to roll over as empty rigs.

Is common if a vehicle is warmed up.

Is encouraged to improve gas mileage.

Have a fire extinguisher and other emergency equipment.

Not have a fire extinguisher, unless it is being used to transport hazardous materials.

Not have a fire extinguisher, unless it will be traveling through remote areas.

A device that prevents a vehicle from going too fast

A device that prevents a vehicle from being too loud

A device that improves a vehicle's gas mileage

Vermont CDL Double 1 - DMV Written Test Questions with Answers

Q.1

During a walk-around inspection, ensure the release arm is properly seated and the safety latch or lock is:

Engaged.
Deactivated.
Polished.

Q.2

Fully-loaded rigs:

Are less likely to roll over than empty rigs.
Are more likely to roll over than empty rigs.
Are just as likely to roll over as empty rigs.

Q.3

Rough acceleration:

Can damage a vehicle.
Is common if a vehicle is warmed up.
Is encouraged to improve gas mileage.

Q.4

Texting while driving should:

Only be done on straightaways.
Only be done in curves.
Not be done.

Q.5

Watching the road ahead:

Is more dangerous than only watching your mirrors.
Does not help you drive more safely.
Can help you avoid the need for sudden lane changes.

Q.6

A CMV should:

Not have a fire extinguisher, unless it is being used to transport hazardous materials.
Not have a fire extinguisher, unless it will be traveling through remote areas.
Have a fire extinguisher and other emergency equipment.

Q.7

Trailers built before ____ are not required to have spring brakes.

1985
1975
1999

Q.8

On a leaf spring:

Leaves should shift.
Leaves can be missing.
Leaves should not be broken.

Q.9

Routine vehicle inspections should be done to ensure:

Safety.
Good gas mileage.
Comfort.

Q.10

In low temperatures, bridges usually freeze:

After other parts of the roadway.
Before other parts of the roadway.
At the same time as other parts of the roadway.

Q.11

Drivers trapped behind a slow-moving vehicle often:

Follow the vehicle too closely.
Allow the vehicle plenty of space.
Are happy with the speed of travel.

Q.12

Why do large vehicles use air brakes?

Other brake systems squeak too loudly.
Air brakes are very effective systems.
Other braking systems are hard to come by.

Q.13

If you press the tractor air supply control and your trailer's spring brakes do not release, you should:

Inspect the air line connections.
Activate the Anti-Lock Braking System.
Turn the engine off and on again.

Q.14

If you experience a sudden jackknife, you should never:

Release the brakes.
Apply the trailer hand brake.
Allow the trailer to straighten out.

Q.15

What is a retarder?

A device that prevents a vehicle from going too fast
A device that prevents a vehicle from being too loud
A device that improves a vehicle's gas mileage

Q.16

What kind of brakes do most newer heavy-duty trucks use?

Single air brakes
Dual air brakes
Triple air brakes

Q.17

A driver should use the trailer hand valve to:

Uncouple the trailers.
Test the trailer brakes.
Apply the emergency brakes.

Q.18

Do not base your decision to shift gears on:

The speed of your engine (rpm).
The speed of the road (mph).
The actions of the vehicle next to you.

Q.19

Which of the following is true?

It is safe to drive on a tire that is missing one or two lug nuts.
A cracked lock ring on a rim is safe if you are not driving faster than 55 mph.
A missing clamp on a rim is dangerous and should be corrected.

Q.20

If driving a new vehicle, you should familiarize yourself with the controls:

Before you start driving.
As you drive.
If you feel like you need to.