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CDL GENERAL KNOWLEDGE TEST (IDAHO) - PRACTICE TEST

21. To prevent rollover, you should:
keep the cargo as close to the ground as possible.
go slowly around turns.
All of the above.
22. When you have to back, you should always try to back toward the driver's side because:
you can see better and watch the rear of your vehicle out the side window.
backing toward the left side is more dangerous.
None of the above.
23. When going down a long downgrade, the speed of your vehicle will likely:
decrease.
stay the same.
increase.
24. To prevent drowsiness before a trip, you should:
avoid medications that cause drowsiness.
drive with the windows rolled down.
drink 2 cups of coffee.
25. What is a "header board"?
The back door of the cargo compartment.
Another term for the brake camshaft.
A safety device that protects you from your cargo in case of an accident.
26. The use of brakes on a steep downgrade is:
a supplement to the braking effect of the engine.
the main braking factor.
much more effective than the engine braking effect.
27. Which of the following is NOT one of the four basic skills required to operate a commercial motor vehicle?
First-aid certification
Backing safely
Steering
28. Which of the following statements about brake shoes is true?
Brake drums must have cracks longer than half the width of the friction area.
Brake shoes should be thinner than ¼ inch.
None of the above.
29. Railroad crossings with steep approaches:
require drivers to increase their speed before crossing the tracks.
require drivers to shift gears while crossing the tracks.
can cause your unit to hang up on the tracks.
30. In some states, move-over laws require drivers to:
slow and change lanes when approaching a roadside incident.
obey the directions given by police officers at railroad crossings.
submit to a chemical test to determine their BAC when requested by a peace officer.
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