The dead man fueling valve shall be held open...

• A. hand during the entire fueling operation
• B. a wrench
• C. by a clamp
• D. automatically

Answer: (A)

Holding the dead-man fueling valve by hand keeps fuel flow under active, continuous control. This safety device is designed to release fuel flow immediately if the operator is no longer actively engaged—releasing stops the flow to prevent spills, fires, or other hazards. If the valve were opened with a wrench or clamp, or left to operate automatically, there would be no guarantee of immediate, human oversight in an emergency. Holding it by hand for the entire fueling process ensures the operator remains in control and can respond instantly to any issue.