NJ CDL AIR BRAKES PRACTICE TEST
16.
ABS:
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replaces your normal brakes.
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is an addition to your normal brakes.
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allows you to brake harder.
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should only be used on dry roads.
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17.
In air brake vehicles, the parking brake should be used:
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when the spring brakes are on.
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any time you park (with a few exceptions).
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to hold your speed while going downhill.
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as little as possible.
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18.
Having ABS on only the trailer:
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makes the trailer more likely to swing out.
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still gives you more control over your vehicle during braking.
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makes the trailer more likely to roll over.
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is very dangerous.
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19.
Most heavy-duty vehicles use:
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solid brakes.
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hydraulic brakes.
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air brakes.
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pressure brakes.
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20.
The low air pressure warning light is usually:
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red.
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blue.
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yellow.
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orange.
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