CDL PRACTICE TEST (NJ) - GENERAL KNOWLEDGE TEST
11.
Whenever you back up with a trailer, position your vehicle so you can back in a straight line. If you must back on a curved path, back toward:
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Either side.
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the driver's side.
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the right side.
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Neither side (do not back).
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12.
Water
in the brakes can cause the brakes to:
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break.
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overheat.
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fade.
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be weak or apply unevenly.
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13.
Name two situations in which it may not be safe to operate your vehicle at legal maximum weights.
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In heavy traffic or at night
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During bad weather or in mountains
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Over bridges or through tunnels
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All of the above.
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14.
If the engine catches fire, you should:
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avoid shooting foam from the vehicle's underside.
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open the hood as soon as you can.
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pull into a service station and notify the emergency services.
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turn off the engine as soon as you can.
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15.
When passing a vehicle, you should NOT:
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drive carefully enough to avoid an accident.
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keep blowing your horn while passing.
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at night, flash your lights from low to high beam and back.
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assume the other driver does not see you.
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16.
You should reject a vehicle until which of the following gets rectified?
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Faulty windshield wipers
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Faulty headlights
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Faulty flashers
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All of the above.
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17.
An alcohol evaporator:
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is used to reduce the risk of ice in air brake valves and other parts during cold weather.
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protects the air brake system from too much pressure.
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to hold compressed air.
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used to reduce the chance of the front wheels skidding.
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18.
Glad hands are:
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warning devices.
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electronic devices.
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coupling devices.
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securement devices.
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19.
Which of the following is a common cause of fire?
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Under-inflated tires and duals that touch.
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Improperly sealed cargo.
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Short circuits due to loose connections.
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All of the above.
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20.
Placards must be:
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in a diamond shape.
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readable from all 4 directions.
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turned upright on a point.
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All of the above.
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