CDL PRACTICE TEST (ND) - GENERAL KNOWLEDGE TEST
21.
A low air pressure warning signal:
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is optional on vehicles with air brakes.
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is required on vehicles with air brakes.
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is required on all vehicles without air brakes.
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None of the above.
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22.
Stopping distance can be affected by:
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Reaction Distance
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Speed
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Perception Distance
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All of the above.
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23.
The emergency equipment must include:
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Charged and rated fire extinguisher.
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Electrical fuses.
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3 red reflective triangles.
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All of the above.
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24.
The best way to recognize that your trailer has started to skid is:
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by recognizing tire failure.
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by opening the window and feeling the front of the mirror.
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by seeing it in your mirrors.
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by feeling the brakes come on.
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25.
If your vehicle has manual transmission, to know when to shift up:
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you must use mirrors on both sides.
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you should release the accelerator, push in the clutch, and shift to neutral at the same time.
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you should use a helper when you can.
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you can watch your tachometer, and shift up when your engine reaches the top of the range.
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26.
A steering wheel play of more than ___ degrees can make it hard to steer.
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10
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60
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45
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20
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27.
If you are being tailgated, you should:
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avoid quick changes.
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increase your following distance.
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avoid tricks like turning on your taillights or flashing your brake lights.
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All of the above.
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28.
When making a left turn at an intersection, you should:
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reach the center of the intersection before you start the left turn.
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always use your horn.
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start your turn before reaching the center of the intersection.
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always take the left turn lane if there are two turning lanes.
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29.
When approaching a traffic light that has been green for a long time, you should:
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start slowing down and be ready to stop.
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speed up to get through the light.
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maintain your current speed.
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None of the above.
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30.
An Anti-lock Braking System (ABS):
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keeps your wheels from locking up when you brake hard.
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always shortens your stopping distance.
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lets you drive faster.
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increases your normal braking capability.
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