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You park a trailer with compressed air-braking system for a short period. How can you disengage the service brake of the trailer?

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By activating the release valve

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By venting the brake line

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By releasing the parking brake

Here is Our AI Assistant's Explanation

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When parking a trailer with a compressed air-braking system, the service brake can be disengaged by activating the release valve. This valve allows the compressed air pressure in the brake system to be released, which releases the brake pads from the wheels. Venting the brake line or releasing the parking brake does not directly disengage the service brake in this context. Understanding this ensures that the trailer will not remain braked when parked for a short time, preventing unnecessary wear or damage.

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