New York CDL Combination 2 - DMV Written Test Questions with Answers - MCQGeeks.com

Q.1

A trailer will be most likely to swing around when:

It is full.
Traveling in a straight line.
It is empty.
The wheels are rotating.

Q.2

If you are operating a vehicle built before 1998 and are unsure if the trailer has an Anti-Lock Braking System (ABS), you can:

Check for wheel speed sensors coming from the back of the brakes.
Look for a red light on the front right corner of the converter dolly.
Pump the air brakes to activate the ABS.
Assume the vehicle has ABS.

Q.3

If your trailer goes off course while you are backing, you should:

Continue the backing process without changing anything.
Pull the truck forward, readjust, and start backing again.
Get out of the truck and move the trailer into the right position.
Turn the steering wheel all the way to the left until the trailer straightens out.

Q.4

What is a tractor protection valve?

A valve to keep air in the brake system should there be a bad leak
A valve that prevents the truck from being stolen
A valve that prevents the driver from going too fast
A valve that prevents the trailer from accidentally being released

Q.5

In a vehicle equipped with an automatic tractor protection valve, the valve will pop out when:

Air pressure drops to a level between 20 and 45 psi.
You are experiencing a trailer jackknife.
Wheels have regained traction after a skid.
Air pressure is above 45 psi.

Q.6

Pull out the trailer air supply control to test:

The parking brake.
The trailer emergency brakes.
The trailer service brakes.
The landing gear.

Q.7

Air pressure in the ____ air line is controlled by either the foot brake or trailer hand brake.

Emergency
Service
Rear
Auxiliary

Q.8

Failure to keep the fifth wheel plate properly greased could:

Cause the trailer to disconnect.
Cause steering problems.
Cause braking problems.
Affect the lights.

Q.9

In a double or triple combination:

Cargo weight must be evenly distributed between all trailers.
The heaviest trailer should be positioned directly behind the cab.
The heaviest trailer should be positioned in the rear.
The weight of the trailers does not matter.

Q.10

An air supply control lever should be in its "normal" position when you are:

Changing a tire.
Applying the trailer emergency brakes.
Pulling a trailer.
Using your spring brakes.

Q.11

The best way to recognize that your trailer has begun to skid is by:

Seeing other drivers' faces.
Seeing it in your mirrors.
Feeling it.
Listening to the radio.

Q.12

The service air line is attached to the:

Relay valves.
Supply line.
Emergency air line.
Steering wheel.

Q.13

Test the tractor protection valve by:

Removing the air supply knob.
Removing the parking brake control knob.
Releasing air with the brake pedal.
Releasing air with the gas pedal.

Q.14

Push in the trailer air supply control to:

Activate the emergency brakes.
Deactivate the air brakes.
Sound the horn.
Supply the trailer with air.

Q.15

Simply changing lanes can cause:

A “crack-the-whip” effect, resulting in a rollover.
A trailer to straighten out.
Confusion over which lane the driver is hoping to use.
Other drivers to reduce their speed.

Q.16

____ are the cause of more than half of all accident-related truck driver deaths.

Truck rollovers
Motorcycles
Slippery roads
Pedestrians

Q.17

Avoid needing to make sudden lane changes by:

Using your horn to encourage other drivers to move out of your lane.
Only driving slower than the posted speed limit.
Watching the road ahead while driving.
Pulling off the road and waiting when there is high traffic.

Q.18

After coupling, there should be ____ between the upper and lower fifth wheel.

No space
Very little space
A lot of space
Three inches of space

Q.19

A shut-off valve:

Is located on the front of a trailer.
Is located on the instrument panel.
Prevents air from escaping an air brake system.
Should always be open.

Q.20

After finishing a pre-trip inspection, you should:

Leave the rear shut-off valves open.
Remove the service line valve.
Close the emergency line valve.
Leave the emergency line valve open.

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