Virginia CDL Double/Triple Trailers Practice Test

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A doubles driver hears air escaping after connecting the rear trailer but pressure still builds slowly. What should the driver do?

Find and repair the leak before operating because marginal pressure can fail under demand Depart if pressure eventually reaches normal once Close the rear trailer service line and continue Use the electrical cord as a backup air source

Correct Answer:

Find and repair the leak before operating because marginal pressure can fail under demand

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