What is the purpose of landing gear on a trailer?

a.To steer the trailer when backing

b.To support the front of the trailer when it is not coupled to a tractor

c.To provide additional braking power

d.To help the trailer turn corners

Explanation

Landing gear supports the front of the trailer when it is not coupled to a tractor. It holds the trailer at the proper height for coupling and prevents the trailer from tipping forward when uncoupled. It must be lowered before uncoupling.

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About the CDL Exam

The CDL (Commercial Driver License) exam tests your knowledge of commercial driving rules, safety procedures, and vehicle operation. You must score 80% or higher to pass the written knowledge test. The exam covers general knowledge, air brakes, combination vehicles, and various endorsements.

This question is from the CDL Combination Test #1 section. Practice with more questions from this category to build confidence before taking the official DMV test.

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