Q
71. Why should you not use the trailer hand brake to straighten out a jackknifing trailer?
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Aa. Because the brake handle is too hard to reach.
Bb. Because the brakes on the trailer wheels cause the skid in the first place.
Cc. Because the brakes on the trailer wheels will not respond to the hand brake.
Detailed Explanation
The correct answer is "b. Because the brakes on the trailer wheels cause the skid in the first place.". This is based on federal CDL regulations and safety standards.
Correct Answer: b. Because the brakes on the trailer wheels cause the skid in the first place.
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