COMBINATION PRACTICE TEST - CA CDL
11.
Why should you cover your cargo?
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To protect the cargo from weather.
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To protect people from spilled cargo.
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All of the above.
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12.
When driving in very hot weather, the heat will increase the chances of:
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loss of hydraulic pressure.
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ABS malfunction.
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tire failure.
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13.
When backing a truck you should:
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look straight ahead.
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always rely on your mirrors.
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get out and walk around the vehicle before you begin to back.
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14.
Most heavy-duty vehicles use:
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hydraulic brakes.
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solid brakes.
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air brakes.
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15.
The best way to test the trailer service brakes is to:
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accelerate to the maximum possible speed, then apply the trailer brakes fully.
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pull forward quickly, then apply the trailer brakes with your hand control.
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None of the above.
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16.
Which of the following is NOT true? ABS (antilock braking system):
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only activates when the wheels are about to lock up.
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increases your normal braking capability.
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is an addition to your normal brakes.
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17.
Emergency brakes are:
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not required on doubles.
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not required on buses.
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required on all vehicles.
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18.
If you begin to feel drowsy while driving, you should:
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get an energy drink.
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pull off the road and get some rest.
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get some coffee.
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19.
What should you do if your vehicle gets stuck on the railroad tracks?
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Call 911, then get out of the vehicle and away from the tracks.
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Get out of the vehicle and away from the tracks as quickly as possible, then call 911.
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Turn on the emergency flashers and call 911.
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20.
ABS helps you:
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steer gently and smoothly while you are braking.
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avoid wheel lock up and maintain control of your vehicle when you brake.
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increase your normal braking capability.
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