On a tractor-trailer, what are glad hands used for?

Answer options

Why

Glad hands are the fittings on the service and emergency air lines that lock onto matching fittings on the trailer, carrying air from the tractor to the trailer brakes. They are not used to warn traffic or to secure cargo.

About this question

Topic: Combination vehicles   License: CDL

Part of these practice sets:

• Trailer Air Lines and Coupling

Where it applies: Asked in every state.

Practice the whole set

This question is part of Trailer Air Lines and Coupling (28 questions). Take the full set and check your score.

More questions from Trailer Air Lines and Coupling

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