1985
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1975
|
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1999
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Number of questions: | 20 |
Passing score: | 16 |
1985
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|
1975
|
|
1999
|
A tractor without a semi-trailer
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A tractor with two semi-trailers
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A tractor that travels faster than the speed limit
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20 and 45 psi.
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75 and 105 psi.
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50 and 65 psi.
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Rollovers.
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Slippery roads.
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Other drivers.
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Pump the brakes.
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Use extra braking force to ensure the brakes kick in.
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Brake as you would without anti-lock brakes.
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Is more dangerous than only watching your mirrors.
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Does not help you drive more safely.
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Can help you avoid the need for sudden lane changes.
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Pump the air brakes to activate the ABS.
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Look into the back of the fifth wheel.
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Check for wheel speed sensors coming from the back of the brakes.
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