CDL GENERAL KNOWLEDGE TEST (OR) - PRACTICE TEST

41. If you've been drinking alcohol, only ____ will sober you up.
a cold shower
time
black coffee
exercise
42. If your vehicle has manual transmission, to know when to shift up:
you should release the accelerator, push in the clutch, and shift to neutral at the same time.
you can watch your tachometer, and shift up when your engine reaches the top of the range.
you must use mirrors on both sides.
you should use a helper when you can.
43. Which of these statements is true?
A tread depth of 2/32 of an inch is safe for steering axle tires.
Tires of mismatched sizes can used on the same vehicle.
Dual tires that come in contact with each other provide better traction.
Radial and bias-ply tires should not be used together on the same vehicle.
44. _____ is a thin layer of ice that forms on road surfaces.
White ice
Blue ice
Black ice
Grey ice
45. Brake lag is:
the distance your vehicle will continue to travel, in ideal conditions, before you hit the brakes.
the time required for the air brakes to work after the brake pedal is pushed.
the distance your vehicle will travel, in ideal conditions, while you are braking.
the amount of air pressure required to stop the vehicle.
46. When steering to avoid a crash, you should:
lock your wheels while turning.
accelerate and steer at the same time.
not turn any more than needed to clear the hazard.
apply the brake while you are turning.
47. If your vehicle is equipped with a retarder, you should turn it off:
when you need to accelerate suddenly.
when you are running late.
when you are driving in heavy traffic.
whenever the road is wet, icy, or snow covered.
48. Which of the following is NOT checked in a pre-trip inspection?
Cargo securement
Brake controls
The amount of fuel in the vehicle
Safety equipment
49. Fatigue:
can easily be prevented by drinking coffee.
has little or no effect on driving.
does not impair vision and judgment.
increases the chance of an accident.
50. Which of the following statements about cargo needing special attention is true?
Hanging meat in a refrigerated truck is a very stable load with a low center of gravity.
Overweight loads do not require special transit permits during daylight hours.
Dry bulk tanks require special care because they have a high center of gravity.
All of the above.
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