Q
During a trip, which shut-off valves should be open?
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AOnly the front valves
BAll shut-off valves should be in the open position, except the rear shut-off valves
CAll valves should always be closed
Detailed Explanation
The correct answer is "All shut-off valves should be in the open position, except the rear shut-off valves". This is based on federal CDL regulations and safety standards.
Correct Answer: All shut-off valves should be in the open position, except the rear shut-off valves
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