Kansas CDL Combination Test 1

During a trip, which shut-off valves should be open?

All shut-off valves should be open. The rear shut-off valves should be open. All shut-off valves should be in the open position, except the rear shut-off valves. No shut-off valves should be open.

Correct Answer:

All shut-off valves should be in the open position, except the rear shut-off valves.

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