Which of these is NOT a proper time to apply the parking brakes?

a. If you are going to test the parking brake to make sure that it holds the vehicle.
b. If you will be stopping for only one hour.
c. If the brakes are very hot (e.g Just after coming down a steep grade.)


c. If the brakes are very hot (e.g Just after coming down a steep grade.)

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What occurs if the valves associated with the compressor are incorrectly closed or blocked?

A) Surging B) Leakage C) Overheating D) Overpressurization

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To have a complete ecosystem, all but which of the following components must be present?

A) transformers B) decomposers C) producers D) user

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List the four main types of nuts that are grown for commercial purposes in the U.S

What will be an ideal response?

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Technician A says that the dash or steering column mounted, hand control valve actuates the tractor service brakes without applying the trailer brakes. Technician B says that the hand control valve sources its air from the tractor secondary circuit when functioning normally. Who is correct?  

A. Technician A only B. Technician B only C. Both A and B D. Neither A nor B

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