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

Q.1

During a trip, landing gear should be:

Completely raised.
Completely lowered.
Skimming the pavement.

Q.2

A loss of air pressure in the emergency line will cause:

The suspension springs to extend.
The tractor protection valve to open.
The rear trailer to detach from the combination.
The emergency brakes to activate.

Q.3

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

It allows a vehicle's wheels to lock up.
It prevents a vehicle's wheels from locking up.
It makes turning a vehicle easier.

Q.4

When backing up to couple a trailer, you should position the tractor:

At a 90-degree angle in front of the trailer.
Directly in front of the trailer.
At a 30-degree angle in front of the trailer.
At a 60-degree angle in front of the trailer.

Q.5

Driving a combination vehicle ____ than driving a single vehicle.

Is easier
Requires more driving skill
Is better for training
Is safer in inclement weather

Q.6

Rollovers happen when:

A truck driver is driving too fast.
The driver of a vehicle in front of a truck is moving to slowly.
A truck driver is driving too slowly.
ABS is working effectively.

Q.7

Keeping cargo low can:

Prevent a rollover.
Help you drive faster.
Make turns more dangerous.

Q.8

Before a trip, you can make sure air flows to all trailers by:

Checking for moving air inside of each trailer.
Listening for air at the rear shut-off valve.
Feeling for air at the front shut-off valve.

Q.9

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.
75 and 105 psi.
50 and 65 psi.

Q.10

If you must cross traffic while driving a combination vehicle, you should:

Assume other drivers will make room for your vehicle.
Wait for a gap large enough for your vehicle to safely cross.
Rely only on your mirrors.

Q.11

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.12

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

Truck rollovers
Motorcycles
Slippery roads
Pedestrians

Q.13

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.14

How many air lines does a combination vehicle have?

One
Two
Three
Four

Q.15

Older trailers are not equipped with spring brakes. This means that if the air supply for a vehicle's air braking system leaks away:

The trailer will stop normally.
The trailer will not have brakes.
The trailer will speed up.

Q.16

If color-coded, which color is used to identify service lines?

White
Yellow
Blue

Q.17

Rollovers are most likely to happen when:

Drivers turn too fast.
Driver turn too slowly.
It is windy.
It is raining.

Q.18

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

1985
1975
1999

Q.19

If a trailer begins to jackknife, the driver:

Should not apply the trailer hand brake.
Should firmly apply the brakes.
Can straighten the trailer with the parking brake.

Q.20

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

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