The shut off valve at the gasoline tank which can be operated from outside the tank space __________.

Correct Answer: Option A — shuts off the gasoline supply at the tank

46 CFR requires a remote-operated shut-off valve at the gasoline tank to provide an immediate means of isolating the fuel supply during an emergency. This allows the operator to stop fuel flow from outside the tank space, preventing further fuel leakage in the event of a fire.