1 . If your vehicle is hydroplaning, you should:

Accelerate.
Not use the brakes.
Put the vehicle in reverse.

2 . What is a drawback of retarders?

They may not be permitted everywhere.
They can help to slow a vehicle.
They cannot be turned off.

3 . What is a retarder?

A device that prevents a vehicle from going too fast
A device that prevents a vehicle from being too loud
A device that improves a vehicle's gas mileage

4 . What is reaction distance?

The distance you will travel between realizing you must brake and when you physically hit the brakes
The distance you will travel between a hazard becoming visible and you seeing the hazard
The distance you will travel between seeing a hazard and realizing you must brake

5 . Within 10 minutes of stopping on the side of the road, you must:

Place emergency warning devices.
Alert local law enforcement.
Call a mechanic.

6 . When driving:

It is best to hide your intentions from others.
You should only use turn signals if there are vehicles near you.
You should not use turn signals in construction zones.
You should always use turn signals to warn others about your intentions.

7 . When should mirrors be adjusted?

Before driving
While driving
After driving

8 . If the emergency air line loses pressure:

The Anti-Lock Braking System will activate.
The service air line will activate.
The emergency brakes will activate.

9 . If your brakes fail on a downgrade, your best hope to stop is to:

Use an escape ramp.
Use the shoulder.
Drift to a stop.

10 . Fully-loaded rigs:

Usually are very responsive to steering.
Are more likely to roll over than empty rigs.
Can stop quickly.

11 . What is the average driver’s reaction time?

1/16 of a second
1/8 of a second
3/4 of a second
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12 . When using a mirror, you should:

Look quickly at the mirror.
Stare at the mirror for a long time.
Use only the driver’s side mirror.

13 . Alcohol is removed from the body:

By exercising.
At a fixed rate.
More quickly if the person stays awake.

14 . If your vehicle is hydroplaning, you should:

Turn the steering wheel as hard as possible.
Not use the brakes.
Put the vehicle in reverse.

15 . When using a fire extinguisher on a fire, you should:

Get as close to the fire as possible.
Stand as far away from the fire as possible.
Aim the extinguisher at the top of the fire.

16 . What is road rage?

Operating a motor vehicle with the intent of doing harm to others
Operating a motor vehicle that is deemed unsafe
Operating a motor vehicle that has not been inspected

17 . The air storage tanks:

Hold only enough air for one braking cycle.
Hold enough air for the brakes to be used several times if the compressor stops working.
Do not hold air unless there is an emergency.

18 . When traveling through a work zone, you should:

Slow down.
Speed up.
Steer with one hand and keep the other hand free.

19 . Fully-loaded rigs:

Are less likely to roll over than empty rigs.
Are more likely to roll over than empty rigs.
Are just as likely to roll over as empty rigs.

20 . A low air pressure warning signal should activate:

When tank pressure falls below 120 psi.
When tank pressure falls below 60 psi.
When tank pressure falls below 10 psi.
When tank pressure falls below 5 psi.