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1.
Which of the following is NOT a way to determine if your trailer is equipped with ABS (antilock braking system)?
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The letters "ABS" are printed on the side of the steering wheel.
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It was built after March 1, 1998.
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It has yellow ABS malfunction lamps.
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2.
If your vehicle is equipped with air brakes, loss of air pressure in the
emergency line causes:
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the trailer spring brakes to come on.
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the speed of your vehicle to increase.
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the trailer emergency brakes to come on.
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3.
Loose cargo:
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can be a danger to others and yourself.
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could hurt or kill you during a quick stop.
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All of the above.
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4.
If your vehicle thumps or vibrates heavily, it may be a sign that:
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you need to shift up.
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one of the tires has gone flat.
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the brakes have failed.
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5.
When transporting cargo, cargo securement must be checked within the first _____ miles of a trip and every _____ miles after.
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50; 250
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50; 150
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100; 150
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6.
When driving a combination vehicle, which of the following 2 things will help you prevent a rollover?
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Keeping cargo near the center of the vehicle and driving slowly on turns.
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Keeping cargo near the center of the vehicle and driving slowly on the highway.
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Keeping the cargo near the ground and driving slowly around turns.
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7.
When you inspect the coupling, make sure there is ______ between the upper and lower fifth wheel.
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no space
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about 1 inch
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about 1/2 inch
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8.
If your brakes get wet, it can cause them:
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to apply unevenly.
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to be weak.
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All of the above.
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9.
If you will be transporting hazardous materials that require placards, you must:
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obtain a special transit permit.
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obtain a hazardous materials endorsement.
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transport the materials at night only.
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10.
The trailer hand valve should:
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be used in driving.
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never be used to test the trailer brakes.
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never be used for parking.
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