🔗Alabama Combination Vehicles — Question 4 of 10

Which part of the kingpin should the locking jaw close around?

Answer: C

The shank.

While inspecting the 5th wheel coupling while connecting the trailer the locking jaws should be closed around the shank of the kingpin.

A. The base.

Choice A is wrong because the locking jaw should close around the shank, not the base of the kingpin.

B. The head.

Choice B is wrong because the locking jaw does not close around the head but around the shank of the kingpin.

Questions on Exam

Passing Score

80%

Time Limit

Typically 30 minutes; varies by testing location

Age Requirements

Intrastate: 18+ · Interstate: 21+

Alabama Law Enforcement Agency (ALEA)

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