CDL PRACTICE TEST (CA) - GENERAL KNOWLEDGE TEST
21.
Your driver license doesn't have the hazardous materials endorsement. You can drive a vehicle that carries hazardous materials if:
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one of your passengers has the hazardous materials endorsement.
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you are transporting hazardous materials for less than 50 miles.
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the vehicle does not require placards.
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22.
When the wheels of a trailer lock up, the trailer will tend to swing around. This is more likely to happen when:
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the trailer is fully loaded.
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the trailer is overloaded.
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the trailer is empty or lightly loaded.
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23.
Which of the following is not part of the air brake system?
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Air compressor
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Air storage tanks
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Air filter
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24.
Which of the following statements about driving in hot weather is true?
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Spots where tar "bleeds" to the surface
provide better traction.
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If a tire is too hot to touch, you should hose it down with water.
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You should check the tire mounting and air pressure before driving.
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25.
When checking the condition of wheels and rims during the pre-trip inspection, make sure that:
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no more than two lug nuts are missing.
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the end of the kingpin is even with the top of the fifth wheel.
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no studs, spacers, clamps, or lugs are missing, bent, or broken.
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26.
The best way to recognize that your trailer has started to skid is:
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by feeling the brakes come on.
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by seeing it in your mirrors.
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by recognizing tire failure.
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27.
In order to protect yourself and others, you must be aware that children may do something hazardous because:
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they don't have a driving license.
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they tend to like trucks.
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they tend to act quickly without checking traffic.
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28.
To avoid becoming a distracted driver you should:
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not engage in complex conversations with others.
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not turn off all communication devices.
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adjust all vehicle controls and mirrors while driving.
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29.
If you feel drowsy, you should _______ before driving.
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sleep
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exercise
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drink coffee
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30.
When the load on a vehicle extends more than 4 feet beyond the rear of the body, a _______ must be placed at the end of the load.
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red flag
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yellow sign
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warning sign
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