CDL PRACTICE TEST (CO) - GENERAL KNOWLEDGE TEST

31. If during vehicle inspection a tire is too hot to touch, you should:
make sure there is enough engine oil on the tires.
immediately decrease air pressure.
remain stopped until the tire cools off.
let air out.
32. While driving at night, use __________ when it is safe and legal to do so.
high beams
low beams
interior lights
emergency flashers
33. The space under a heavily loaded vehicle can be very small. This can cause problems:
on dirt roads.
when crossing railroad tracks.
on unpaved yards.
All of the above.
34. Which of the following statements is true?
Short-term or daily rental truck drivers are often not used to driving a large vehicle and may pose a hazard to you.
Delivery truck drivers are professionals and do not pose any hazard to you.
You can always trust other drivers to turn in the direction that their turn signal is indicating.
You do not have to worry about individuals driving cars with out-of-state license plates.
35. In vehicles with air brakes, the air compressor governor:
controls when the air compressor will pump air into the air storage tanks.
controls when the air storage tanks will pump air into the air compressor.
controls how much air the air compressor will pump into the air storage tanks.
None of the above.
36. "Tire load" means:
the maximum safe weight a tire can carry at a specified pressure.
the minimum weight a tire can carry at a specified pressure.
the specified weight a tire can carry at the maximum pressure.
the specified weight a tire can carry at the minimum pressure.
37. When backing a trailer, turn the wheel right to make the cab go ________ and the trailer go ________.
left; left
left; right
right; left
right; right
38. When you are being tailgated, you should NOT:
increase your following distance.
turn on your taillights.
avoid quick changes.
All of the above.
39. Which of the following statements about engine overheating is true?
You should never shut off an overheated engine until it cools.
You should never remove the radiator cap or any part of the pressurized system until the system has cooled.
Low speeds create more heat for the engine.
None of the above.
40. Which of the following is NOT a correct action in the event of brake failure?
Using the parking brake.
Looking for an escape route.
Weaving from side to side to slow down.
Putting the vehicle into a lower gear.
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