SOUTH CAROLINA CDL PRACTICE TEST - GENERAL KNOWLEDGE

41. After a tire has been changed, you should:
stop a short while later and check that the nuts are tight.
wait at least 30 minutes before driving.
decrease tire pressure.
deflate the tire to 15 psi.
42. After starting the engine the coolant temperature should:
slowly decrease.
rise quickly.
hold steady.
rise gradually.
43. Skids happen whenever:
ABS is not working.
the weight limit is exceeded.
dual tires come in contact with each other.
tires lose their grip on the road.
44. _____ is a thin layer of ice that forms on road surfaces.
Blue ice
Black ice
Grey ice
White ice
45. When checking your mirrors you should:
only use the passenger side mirror.
only use the driver side mirror.
not make regular checks.
use both mirrors.
46. Which of the following is NOT a warning sign of fatigue?
Rubbing eyes
Difficulty focusing
Adjust your speed depending on driving conditions
Missing exits
47. Which of the following statements about cargo needing special attention is true?
Dry bulk tanks require special care because they have a high center of gravity.
Overweight loads do not require special transit permits during daylight hours.
Hanging meat in a refrigerated truck is a very stable load with a low center of gravity.
All of the above.
48. When driving in heavy rain:
avoid driving through deep puddles or flowing water if possible.
drive alongside other vehicles if possible.
take curves at higher speeds and brake while in curves.
All of the above.
49. If your trailer starts to skid, you should:
use the trailer hand brake (if you have one) to straighten out the rig.
accelerate slightly.
keep the rear of your vehicle close to the curb.
release the brakes to get traction back.
50. The parking brake should be tested while the vehicle is:
moving back slowly.
moving forward slowly.
moving at highway speeds.
None of the above.
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