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

Combination Vehiclesmedium

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

Detailed Explanation

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

Detailed Explanation

Ready to practice for real?

Related Questions

8. Why should you be sure that the fifth wheel plate is greased as required?

35. Under good driving conditions, you should leave at least one second of space between your vehicle and the vehicle ahead for every a. 10 b. 20 feet of your vehicle's length. c. 30

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Avoid needing to make sudden lane changes by:

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