Prevent the air compressor from overheating

Prevent the front brakes from being used on ice

Prevent the brakes from being used if downshifting would be more effective

Freeze before other road surfaces.

Freeze, but only once the temperature drops significantly below 32 degrees Fahrenheit.

Freeze after other road surfaces freeze.

Have heaters to prevent them from freezing.

Can be helpful to see a wider area.

Cannot be used on vehicles transporting hazardous materials.

Are illegal to be used in most states.

Uses pressurized water to support the load.

Kansas CDL Double 1 - DMV Written Test Questions with Answers

Q.1

The air compressor governor controls:

When the air compressor pumps air into the air storage tanks.
How fast air is pumped into the air storage tanks.
The temperature of air pumped into the air storage tanks.
The speed of the vehicle.

Q.2

When driving with covered cargo, a cover that flaps:

Is acceptable.
Allows air to keep the cargo cool.
Can tear loose.
Can attract birds.

Q.3

What is the Gross Vehicle Weight Rating (GVWR)?

The maximum permitted total weight of a vehicle and its cargo
The minimum permitted weight of a trailer
The maximum permitted weight of a trailer and its contents
The maximum permitted weight of only a tractor

Q.4

What does ABS do?

Prevent wheel lockup
Prevent the air compressor from overheating
Prevent the front brakes from being used on ice
Prevent the brakes from being used if downshifting would be more effective

Q.5

Bridges usually:

Freeze, but only once the temperature drops significantly below 32 degrees Fahrenheit.
Freeze after other road surfaces freeze.
Freeze before other road surfaces.
Have heaters to prevent them from freezing.

Q.6

On a leaf spring, the leaves:

Should shift.
May be broken.
Are not required.
Should not be broken.

Q.7

When connecting a converter dolly to the rear trailer, the trailer height should be:

Higher than the center height of the fifth wheel.
Lower than the center height of the fifth wheel.
The same height as the fifth wheel.
About shoulder height.

Q.8

When inspecting a power steering-equipped vehicle, you should be sure that:

The fluid is at the proper level.
The hoses are connected to the battery.
The hoses do not contain any fluid.
Only small leaks are present.

Q.9

When backing a trailer, how should you turn the steering wheel?

Turn the top of the steering wheel in the direction you want the trailer to go.
Turn the top of the steering wheel in the direction opposite of where you want the trailer to go.
It doesn’t matter.
It depends on where the trailer is being backed.

Q.10

Convex mirrors:

Cannot be used on vehicles transporting hazardous materials.
Can replace flat mirrors.
Can be helpful to see a wider area.
Are illegal to be used in most states.

Q.11

To make driving at night easier, you should:

Keep your interior light turned on.
Adjust the instrument panel lights as dimly as you can while still being able to read the gauges.
Not take a nap before driving.
Use only your low beam headlights.

Q.12

If using a helper while backing a vehicle, where should they stand?

In front of the passenger side
In front of the driver side
On the wide of the truck
Near the back of the truck

Q.13

When preparing to enter traffic, you should do all of the following, except:

Wait for a large gap between vehicles.
Be prepared for your vehicle to accelerate slowly, especially if it is loaded.
Make sure you can completely cross traffic, if necessary, without interfering with traffic.
Assume other drivers will make room for your much larger vehicle.

Q.14

An example of mandatory emergency equipment is:

A supply of spare electrical fuses.
A loud horn.
A battery-operated flashlight.
A supply of fireworks.

Q.15

When approaching a railroad crossing:

You will likely be able to outdrive a train.
You should not rely only on warning signals.
You should roll a window down to listen for an approaching train.
You should only worry about the track closest to your vehicle.

Q.16

Most heavy vehicles require ____ to change gears.

Double clutching
Double shifting
Triple clutching
Triple shifting

Q.17

Which of the following is not a part of an air brake system?

A service brake system
A parking brake system
An emergency brake system
An axle brake system

Q.18

A suspension system:

Has a weight capacity rating.
Uses pressurized water to support the load.
Can handle any weight load.
Has a minimum weight rating.

Q.19

If federal inspectors judge your vehicle to be unsafe, they can:

Bring you to a garage to have your vehicle fixed.
Formerly request that you have your vehicle's problems fixed.
Call a mechanic.
Pull the vehicle out-of-service until it is fixed.

Q.20

When carrying a wide load, you should:

Drive as fast as possible.
Obtain special permits and follow special rules.
Honk at other drivers to get them to move from the lane closest to you.
Drive on the shoulder.