89. The fifth-wheel locking lever is not locked after the jaws close around the kingpin. This means that:

Combination Vehiclesmedium

Aa. The trailer will not swivel on the fifth wheel.

Bb. The parking lock is off and may drive away.

Cc. The coupling is not right and should be fixed before driving the coupled unit.

Detailed Explanation

The correct answer is "c. The coupling is not right and should be fixed before driving the coupled unit.". This is based on federal CDL regulations and safety standards.

Correct Answer: c. The coupling is not right and should be fixed before driving the coupled unit.

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89. The fifth-wheel locking lever is not locked after the jaws close around the kingpin. This means that:

Detailed Explanation

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