CDL PRACTICE TEST - GENERAL KNOWLEDGE (PENNSYLVANIA)

11. What is a common cause of tire fires?
Duals that touch
Loose lug nuts
Cold tires
All of the above.
12. If you recognize a distracted driver on the road, you should:
follow them closely.
give them plenty of room.
flash your brake lights at them.
try to pass them.
13. Checking your vehicle's suspension system includes checking:
the mounting brackets.
the air suspension systems.
the tires.
All of the above.
14. After starting the engine, you are looking at the oil pressure gauge. Oil pressure should come up to normal within:
10 minutes.
seconds.
2 minutes.
5 minutes.
15. If your tires are hot, you should NOT:
once the tires have cooled down, make another stop to check the tires.
let air out of the tires so the pressure goes back to normal.
drive until you correct the cause of the overheating.
stop to let the tires cool down.
16. When you get in the vehicle and start the engine, you should:
make sure the parking brake is on before starting the engine.
put the gearshift in neutral (or park if automatic) before starting the engine.
listen for unusual noises after starting the engine.
All of the above.
17. What factors can cause brakes to fade?
Gravel and tar.
Dirt roads and in unpaved yards.
Slippery surfaces and shaded areas.
Excessive heat and brakes out of adjustment.
18. When a tire fails, do NOT:
brake, unless you're about to run into something.
keep a firm grip on the steering wheel.
stay off the brake until the vehicle has slowed down.
None of the above.
19. When driving at night, you should dim your lights within ______ of an oncoming vehicle.
250 feet.
300 feet.
400 feet.
500 feet.
20. _________ is the distance it takes to stop in ideal conditions once the brakes are applied.
Safe following distance
Braking distance
Perception distance
Stopping distance
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