CA CDL GENERAL KNOWLEDGE TEST - CDL PRACTICE TEST

21. The height of a vehicle's center of gravity is important for safe handling. Why?
Trucks with a high center of gravity can roll over at the posted speed limit for a curve.
Trucks with a high center of gravity have better traction.
A high center of gravity means you are less likely to tip over.
22. The air compressor is connected to:
the transmission.
the engine.
the radiator.
23. _________ is operating a motor vehicle with the intent of doing harm to others.
Angry driving
Aggressive driving
Road rage
24. Good drivers look at least _________ ahead.
20 to 30 seconds
12 to 15 seconds
5 to 10 seconds
25. To check the signal lights, do the following:
Turn off all the lights, turn on the stop lights, and turn on the left turn signal lights.
Turn on all the lights, turn off the stop lights, and turn off the left turn signal lights.
Turn off all the lights, turn on the right turn signal lights, and turn on the stop lights.
26. Combination vehicles _________ than single CMVs.
are much easier to drive
require more driving skill
are safer in bad weather
27. When driving, you should check mirrors regularly to know where other vehicles are around you. Remember that:
convex mirrors make things look larger and closer than they really are.
there are blind spots that your mirrors cannot show you.
you should check your after the start of any trip to make sure they are properly adjusted.
28. Which of the following is NOT a hazard?
Work zones
A cardboard box on the road
An escape ramp
29. If during vehicle inspection a tire is too hot to touch, you should:
let air out.
immediately decrease air pressure.
remain stopped until the tire cools off.
30. When you are involved in an accident and not seriously hurt, you need to:
care for the injured.
protect the area and notify authorities.
All of the above.
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