An engine can be destroyed quickly.

A vehicle will get better gas mileage.

An Anti-Lock Braking System (ABS) won’t work properly.

Should not be removed when the coolant is hot.

Can be removed when the coolant is hot.

Should be cool to the touch under normal driving conditions.

Minnesota CDL Double 1 - DMV Written Test Questions with Answers

Q.1

If a load is 10 feet long, it should be secured by at least ____ tie-down(s).

One
Two
Three
Four

Q.2

An example of required emergency equipment is:

A spare electrical fuse.
A loud horn.
A battery-operated flashlight.

Q.3

If your vehicle is hydroplaning, you should:

Speed up.
Not apply the brakes.
Put the vehicle in reverse.
Turn the steering wheel as hard as possible.

Q.4

During an inspection, slack adjusters on S-cam brakes should not move more than:

One foot.
One centimeter.
One inch.

Q.5

During a trip, the ____ should be open.

Rear service line shut-off valve
Rear supply line shut-off valve
Inner shut-off valves

Q.6

When traveling down a steep downgrade:

The air brakes should be used.
Shift into a lower gear, then use brakes to supplement the braking effect of the engine.
The vehicle should be continually downshifted in the place of using the brakes.
The vehicle should be driven on the shoulder.

Q.7

You can confirm that a tractor protection valve is working properly by:

Disconnecting all glad hands.
Opening all of the vehicle's shut-off valves.
Releasing air with the brake pedal and waiting for the emergency signal to activate.

Q.8

When braking with ABS, you should:

Pump the brake pedal.
Brake normally.
Brake harder than you would with a different braking system.

Q.9

What is a Gross Vehicle Weight Rating?

The maximum weight stated by the manufacturer as the loaded weight of a single vehicle
The maximum weight that can be pulled by a single vehicle
The minimum weight that can be hauled by a single vehicle
The maximum amount that can be loaded onto a single trailer

Q.10

You should cover cargo:

To protect the cargo from thieves.
To protect the cargo from weather.
To prevent other drivers from looking at what is being transported.
To keep the cargo a secret.

Q.11

When driving in fog, you should:

Use your horn.
Use the low beam lights.
Use the high beam lights.
Use the heater.

Q.12

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.13

On slippery roads, you should:

Accelerate and slow down frequently.
Adjust your driving to match weather conditions.
Tailgate other vehicles.

Q.14

A pre-trip vehicle inspection:

Is not required if the driver regularly uses the vehicle.
Is not required for trips under 100 miles.
Is only to be performed by a mechanic.
Is required by law.

Q.15

Without engine oil:

A vehicle will get better gas mileage.
An engine can be destroyed quickly.
An Anti-Lock Braking System (ABS) won’t work properly.

Q.16

When a vehicle with multiple trailers makes a turn, the rearmost wheels follow a slightly different path than the front wheels.

True
False

Q.17

The radiator cap:

Should not be removed when the coolant is hot.
Can be removed when the coolant is hot.
Should be cool to the touch under normal driving conditions.

Q.18

What is the minimum number of tie-downs required to secure a 10-foot piece of cargo?

One
Two
Three

Q.19

A one-way check valve:

Drains the water and compressor oil from the air tanks.
Prevents air from escaping if the air compressor has a leak.
Activates the emergency brakes when there is a leak.
Holds the spring brakes in position until they are used.

Q.20

To help your vehicle be seen by others:

Headlights should be clean.
Headlights should be turned off during the day.
Headlights should be covered with grease.
Headlights should only be used in the rain.