GENERAL KNOWLEDGE CDL TEST NORTH CAROLINA - PRACTICE TEST

21. When driving, you should:
avoid checking your mirros often.
check your mirrors regularly.
use your mirrors only when changing lanes.
avoid using your mirrors to spot overtaking vehicles.
22. To prevent rollover, you should:
keep the cargo as close to the ground as possible.
place the cargo near the front of the trailer.
put the lightest parts of the cargo under the heaviest parts.
place the cargo near the rear of the trailer.
23. When checking the steering system for defects, you should look for:
loose, broken, or missing tailpipes.
bent, loose, or broken parts, such as tie rods.
cut or cracked valve stems.
missing or broken leaves in any leaf spring.
24. Class A:B:C fire extinguishers are designed to work on:
burning wood, paper, and cloth.
electrical fires.
burning liquids.
All of the above.
25. When inspecting a vehicle's suspension, you should look for broken or missing leaves in the leaf springs.  If ____ or more are missing, it will put the vehicle out of service.
10%
50%
15%
25%
26. When inspecting your vehicle for suspension system defects, look for:
cracked or broken spring hangers.
missing or broken leaves in any leaf spring.
leaking shock absorbers.
All of the above.
27. Retarders:
reduce brake wear.
reduce the need for using your brakes.
help slow a vehicle.
All of the above.
28. A high center of gravity:
is less dangerous in curves.
means you'll have better traction.
helps the vehicle be more stable while turning.
means your vehicle is more likely to tip over.
29. When going down a long downgrade, the speed of your vehicle will likely:
increase.
decrease.
stay the same.
None of the above.
30. When driving through a large puddle or flowing water, you should:
gently put on the brakes.
increase engine rpm.
slow down.
All of the above.
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