1 . When entering traffic, a large vehicle usually needs:

Less space than is needed for a car.
About the same amount of space as is needed for a car.
More space than is needed for a car.

2 . If you are driving and the ABS light comes on, it means that the ABS:

Cannot work due to weather conditions.
Has just been activated.
Is not working properly.

3 . In very hot weather, tires should be checked regularly because:

They may melt.
Air pressure may increase with the temperature.
The tread wears down more quickly than in cooler weather.

4 . On slippery roads, you should:

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

5 . Using an Anti-Lock Braking System (ABS):

Is required in some states.
Shortens brake response time.
Provides additional control.

6 . A steering wheel should be:

Held with one hand while the other hand rests.
Held with both hands to ensure an adequate grip.
Released if the vehicle is approaching a bump.

7 . Which of the following is the best advice for driving in fog?

Try not to drive in fog.
Use your high beam headlights.
Turn off your lights.

8 . How many daily hours of sleep does an adult need to maintain alertness?

Six to seven
Seven to eight
Eight to nine
Four to five

9 . Which of the following is not required safety equipment?

A fire extinguisher
A liquid burning flare
An axe

10 . How can you check hydraulic brakes?

Pump the brake pedal three times then apply firm pressure to the pedal for five seconds. The brake pedal should not move.
Pump the brake pedal three times then apply firm pressure to the pedal for five seconds. The brake pedal should move slowly toward the floor.
Pump the brake pedal three times then apply firm pressure to the pedal for five seconds. The brake pedal should slowly rise.

11 . Some water and compressor oil is usually found in the compressed air within an air brake system. The water and compressor oil:

Are necessary for the proper function of the system.
Should take up about 10 percent of the tank.
Should be removed regularly.
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12 . When should mirror adjustments be made?

Before starting a trip
While driving
When a vehicle is stopped at a traffic signal

13 . You must have an air brake endorsement:

To use a vehicle with air brakes.
To drive any truck with a trailer.
To transport hazardous materials.

14 . If you see taillights ahead while you are driving in fog:

The lights may not indicate where the road is as the vehicle may have pulled off the roadway.
You can assume the vehicle ahead is on the road.
It may be an optical illusion.

15 . Failing to drain air tanks could result in:

Water accumulations freezing and causing brake failure.
Squishy brakes.
Too much air collecting in the tanks.

16 . Distracted driving:

Is not a concern.
Only occurs as a result of people who are physically doing something while driving.
Can occur as a result of mental activities, such as daydreaming.
Is encouraged on uncrowded roads.

17 . If one-fourth of the leaves in a leaf spring are missing when a vehicle is inspected:

The vehicle’s driver will be allowed to drive, but only at reduced speeds.
The vehicle will be put out-of-service until it is fixed.
The vehicle will be fine to drive since most of the spring is in place.

18 . Before entering a curve, you should:

Not use the mirrors.
Speed up.
Downshift.

19 . You should test the low pressure warning signal by:

Turning on the engine and applying the trailer hand brake.
Rapidly pressing and releasing the brake pedal.
Removing wheel chocks and disengaging the parking brake.

20 . Alcohol can be removed from your system:

By exercising.
By drinking coffee.
By waiting.