1 . When a vehicle is started, the coolant temperature should:

Decrease.
Rise slowly.
Jump quickly.

2 . When loading compressed gas, the liquid discharge valves should be:

Closed.
Greased.
Opened.

3 . If an unusual noise or feeling occurs in a vehicle while it is being driven, the driver should:

Assume it is not a concern and continue driving.
Hope the vehicle does alright until it is switched to another driver.
Check the situation to determine the proper solution.

4 . When leaving your vehicle:

The air brakes should be applied.
The parking brake should be applied.
Brakes should not be applied if the vehicle is left out of gear.

5 . How much water must be present for a vehicle to hydroplane?

Usually several inches
A good amount, such as a large puddle
A small amount

6 . Which of the following is acceptable if found during a pre-trip inspection?

Tires of mismatched sizes
Tread of 3/32 of an inch in the grooves of the front tires
Tires manufactured by different makers

7 . When you are behind the steering wheel, shipping papers should be:

Within reach.
In the sleeping compartment.
Hidden under the seat.

8 . When coupling a trailer:

Make sure to couple the proper glad hands.
Glad hands can be connected to any other glad hands.
Only one set of glad hands should be connected.

9 . Tanks usually have:

Low centers of gravity.
High centers of gravity.
An extra set of brakes.

10 . When driving a tank with liquid cargo, a surge:

Is usually helpful.
Can be dangerous.
Should not be a concern.

11 . A driver should test the tractor protection valve by:

Pulling the yellow, diamond-shaped knob.
Releasing air with the brake pedal.
Unlocking the trailer doors.
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12 . You may be an aggressive driver if you:

Expect delays on your drive.
Slow down and maintain a reasonable following distance.
Make hand gestures that could anger other drivers.

13 . Who must label hazardous materials?

The mechanic
The shipper
The driver

14 . Before beginning a trip, you should:

Leave the service line valve open.
Remove the relay valves.
Close the emergency line valve.

15 . Which of the following is not an example of a distracted person who should concern motorists?

A driver talking to a passenger in their vehicle
A person sitting on a bench waiting for a bus
A construction worker on the side of the road

16 . If a shipping paper describes both hazardous and non-hazardous materials:

The hazardous materials must be listed first.
The hazardous materials must be written larger.
The hazardous materials must be listed in red ink.

17 . In general, before loading or unloading any flammable liquids, an engine should be:

Turned off.
Revved up.
Turned on.

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

1985
1975
1999

19 . If a tank is found to be leaking, the driver should:

Try to fix the leak by welding the opening closed.
Get the leak fixed immediately.
Drive with their flashers on to warn other motorists.

20 . Carrying liquids in a leaking tank:

Is acceptable if it is only for a short distance.
Can cause a hazard.
Is not dangerous if it is raining.