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

Q.1

A combination vehicle has ____ air line(s).

One
Two
Three

Q.2

The tractor protection valve:

Ensures that oil adequately lubricates the engine.
Protects the tractor from exceeding a set speed.
Keeps air in the truck braking system if the trailer develops a leak.

Q.3

When coupling, after you've connected the air lines to the trailer, you should:

Supply air to the trailer.
Activate the emergency brake.
Disconnect the glad hands.

Q.4

If you cannot reverse your trailer in a straight path, you should:

Swerve back and forth while backing.
Back toward the driver's side.
Back toward the passenger's side.

Q.5

When braking while pulling a trailer equipped with anti-lock brakes, you should:

Pump the brakes.
Use extra braking force to ensure the brakes kick in.
Brake as you would without anti-lock brakes.

Q.6

When you are pulling a trailer, the air supply control lever should be in its ____ position.

Emergency
Supply
Normal

Q.7

Rearward amplification refers to:

The amount of noise projected to the rear of a vehicle.
The cause of the "crack-the-whip" effect.
The number of trailers that can be pulled by a tractor.

Q.8

To prevent a rollover, cargo should be:

Loaded with most weight on the driver’s side of the trailer.
Placed near the rear of the trailer.
Spread out in the trailer.

Q.9

When driving while pulling trailers, you should:

Make sudden turns with the steering wheel.
Avoid making sudden moves.
Push the accelerator to the floor when starting from a stop.

Q.10

When backing up your tractor while coupling it to a trailer, the trailer brakes should be:

Deactivated.
Locked.
Unlocked.

Q.11

When braking with ABS, you should:

Push the brake pedal harder than usual.
Push the brake pedal as you normally would.
Push the brake pedal more lightly than usual.

Q.12

The emergency air line supplies air to the:

Relay valves.
Trailer air tanks.
Signal line.

Q.13

When a combination vehicle goes around a corner:

The vehicle must use at least two lanes.
The front and rear wheels will move in different paths.
It is best to allow the rear wheels to drive over the curb.

Q.14

Bobtail tractors are ____ to stop than tractors attached to full semitrailers.

Quicker
Easier
More difficult

Q.15

Rearward amplification refers to:

The amount of noise projected to the rear of the vehicle.
The cause of the "crack-the-whip" effect.
The number of trailers that can be pulled by one tractor.

Q.16

If you are backing and the trailer begins to drift off-course, the driver should:

Return the steering wheel to the 12 o’clock position.
Turn the top of the steering wheel in the direction of the drift.
Turn the top of the steering wheel in the direction opposite of the drift.

Q.17

When coupling a trailer, you should:

Couple together the proper glad hands.
Couple glad hands with any other glad hands.
Leave one pair of glad hand loose.

Q.18

When coupling a trailer:

Make sure to couple the proper glad hands.
Glad hands can be connected to any other glad hands.
Only one set of glad hands should be connected.

Q.19

After completing a pre-trip inspection, you should ensure that the:

Service line valve is closed.
Trailer hand brake is applied.
Emergency line valve is open.

Q.20

All trailers made after ____ must be equipped with Anti-Lock Braking Systems (ABS).

1943
1998
2009

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