Q
40. A driver crosses the air lines when hooking up to an old trailer. What will happen?
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AThe hand valve will apply the tractor brakes instead of the trailer brakes.
BIf the trailer has no spring brakes, you could drive away but you wouldn't have trailer brakes.
CThe brake lights will come on when the brake pedal is pressed.
Detailed Explanation
The correct answer is "If the trailer has no spring brakes, you could drive away but you wouldn't have trailer brakes.". This is based on federal CDL regulations and safety standards.
Correct Answer: If the trailer has no spring brakes, you could drive away but you wouldn't have trailer brakes.
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43. Your emergency air line breaks or gets pulled apart while you are driving. The loss of pressure will cause the:
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An air supply control lever should be in its 'normal' position when you are:
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If a trailer begins to skid, the driver should:
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The trailer hand valve should:
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If a trailer is too high:
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