New York CDL Combination 1 - DMV Written Test Questions with Answers - MCQGeeks.com

Q.1

If unsure if a trailer is equipped with ABS, you can:

Check under the trailer for wheel speed sensors coming from the back of the brakes.
Try driving on a slippery surface and see if ABS kicks in.
Assume it does have ABS.
Remove a tire and look for the ABS sensor on the axle.

Q.2

Before backing your tractor under the trailer, make sure your trailer brakes are:

Disengaged.
Locked.
Deactivated.
Dry.

Q.3

When uncoupling a trailer, landing gear should be:

Raised completely.
Lowered halfway.
Just off the pavement.
Firmly on the ground.

Q.4

What does the trailer air supply control look like?

It is a square blue knob.
It is a triangular yellow knob.
It is an eight-sided red knob.
It is a circular orange knob.

Q.5

The trailer hand valve:

Should always be used for parking.
Should only be used for parking on a downhill.
Should never be used for parking.
Should only be used when transporting cargo.

Q.6

One way to prevent a rollover is to:

Move cargo to the left side of the rig.
Keep cargo centered on the rig.
Move cargo to the right side of the rig.
Keep cargo as far from the ground as possible.

Q.7

Compared to other commercial motor vehicles, combination vehicles need more space on the road because they are longer and they:

Need more space to turn and stop.
Drive more slowly.
Are twice the width.
Swerve more often.

Q.8

During a trip, which shut-off valves should be open?

All shut-off valves should be open.
The rear shut-off valves should be open.
All shut-off valves should be in the open position, except the rear shut-off valves.
No shut-off valves should be open.

Q.9

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.10

When driving a bobtail tractor, you should be aware that:

Bobtails stop very easily.
Bobtails cannot drive as fast as tractors with semitrailers.
Bobtails are more difficult to stop than tractors with semitrailers.
Bobtails are illegal in most states.

Q.11

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.12

If you need to back your trailer but cannot back up in a straight path, you should:

Back toward the passenger's side.
Back toward the driver's side.
Swerve back and forth while backing.
Always turn to your right.

Q.13

Using the trailer hand brake while experiencing a trailer jackknife will:

Stop the skid.
Straighten the trailer.
Increase traction.
Continue the skid.

Q.14

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.
Should not be driven.

Q.15

To lower the risk of a rollover, you should:

Load the cargo as far forward as possible.
Load the cargo as far back as possible.
Load the cargo as low as possible.
Stack the cargo as high as possible.

Q.16

To test the trailer service brakes, you should:

Move the vehicle forward slowly and apply the brakes with the brake pedal.
Reverse the vehicle slowly and apply the brakes with the hand control.
Reverse the vehicle slowly and apply the brakes with the brake pedal.
Move the vehicle forward slowly and apply the brakes with the hand control.

Q.17

One function of the emergency air line is to:

Control the emergency brakes.
Flash when air pressure is below a certain psi.
Allow for quick turning.
Control the ability to maneuver during bad weather conditions.

Q.18

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

Ask another driver.
Use your mirrors to determine if the trailer has left the lane.
Release the brake pedal and then push it down again.
Watch the jackknife warning light on the control panel.

Q.19

When a combination vehicle goes around a corner:

The turn should be made as tightly as possible.
The front and rear wheels move in different paths.
The rear wheels should run over the curb.
It is acceptable for street signs to be knocked over if they are too close to the road.

Q.20

When driving a tractor-trailer equipped with ABS, you should:

Stop harder than you would otherwise.
Use extra braking force to ensure the ABS kicks in.
Brake as you normally would.
Brake using less pressure than you would otherwise use.

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