Double Trailer Safety: Shut-off Valves Location

Where are the shut-off valves located on some trailers when driving a set of double trailers?

a) In the cab
b) On the front trailer
c) On the rear trailer
d) On the tractor

Final answer:

The shut-off valves on a set of double trailers are located on the rear trailer.

Explanation:

The shut-off valves on a set of double trailers when driving are located on the rear trailer. These valves allow the driver to control the flow of air between the trailers, which is crucial for safe operation. The shut-off valves are typically located at the rear of the rear trailer, near the glad hands.

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