MT CDL DOUBLES TRIPLES PRACTICE TEST
11.
If your ABS fails:
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the first step is to get the vehicle off the road and stop.
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you will have no brake function, and could lose control.
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you will still have normal brake functions.
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your tires might grab unexpectedly and you could lose control.
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12.
If your ABS malfunctions:
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the service brake will not work.
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the parking brakes will not work.
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you still have normal brake functions.
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you should immediately come to a complete stop.
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13.
Enough tread is especially important in winter conditions. You need at least ________ tread depth on steering axle tires.
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6/24 inch
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8/32 inch
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4/32 inch
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2/8 inch
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14.
To know if your vehicle is equipped with ABS, look for:
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the ABS shipping paper.
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the ABS logo on the steering wheel.
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a yellow ABS malfunction lamps on the instrument panel.
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an ABS placard.
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15.
You hear a loud "bang" which sounds like a tire blowout. You should:
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keep driving as normal.
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assume you
have a tire failure.
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check the tires at the next stop.
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inspect your tires with your mirrors.
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16.
During a walk around inspection of a combination vehicle, drivers should check that:
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the glide plate is securely mounted to the trailer frame.
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the locking jaws are around the shank.
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all locking pins are present and locked in place.
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All of the above.
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17.
Regardless of its size, cargo should have at least ___ tie-downs.
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1
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2
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4
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3
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18.
The tractor protection valve:
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supplies air to the trailer air tanks.
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works the trailer brakes.
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controls the emergency brakes on combination vehicles.
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keeps air in the tractor brake system should the trailer break away or develop a bad leak.
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19.
The application pressure gauge:
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shows how much air pressure is being applied to the brakes.
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stops the compressor from pumping air.
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tells you how much pressure is in the air tanks.
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protects the tank and the rest of the system from too much pressure.
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20.
At dawn, dusk, in rain or snow, to make yourself easier to see you should:
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use the low beams.
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use the parking lights.
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use the emergency flashers.
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use the high beams.
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