Question

Push in the trailer air supply control to:

Answers

Supply the trailer with air.

Explanation

Push in the trailer air supply control to supply the trailer with air. Pull out the trailer air supply control to turn off the air supply and activate the emergency brakes.

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This questions appears in the following tests:

North Dakota Tank ,

Wisconsin Tank ,

Colorado Combination ,

Connecticut Combination ,

District Of Columbia Combination ,

Georgia Combination ,

Montana Combination ,

South Carolina Combination ,

South Dakota Combination ,

Texas Combination ,

Wyoming Combination ,

Push in the trailer air supply control to:

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