Which component cuts off fuel delivery?

• A. Metering Valve
• B. Fuel Filter
• C. Main Bypass
• D. Shut-off Valve

Answer: (D)

The key idea here is how fuel flow is halted. A shut-off valve is built to seal the fuel line and stop any fuel from reaching the engine, effectively cutting off delivery. A metering valve, by contrast, tunes how much fuel passes through but doesn’t necessarily shut it off entirely. The fuel filter’s job is to remove contaminants, and while a clogged filter can reduce flow, it isn’t designed to stop fuel on purpose. The main bypass provides an alternate path around the metering device, so fuel can still flow during priming or starting, not to stop delivery. So, the component that cuts off fuel delivery is the shut-off valve.