Which of the following is NOT a feature of the Cessna 172 fuel system?

The fuel system of the Cessna 172 is designed to ensure a consistent and reliable supply of fuel to the engine. Among the various components found in this system, pressure pumps are not a feature. Instead, the Cessna 172 relies on gravity feed and a fuel selector valve to manage fuel flow.

The gravity feed mechanism is essential in the fuel system, allowing fuel to flow from the tanks to the engine using the force of gravity, which simplifies the system and reduces the chances of pump failure. The fuel selector valve allows the pilot to choose the source of fuel from the left tank, right tank, or both, ensuring control over fuel consumption and distribution.

Fuel shutoff valves are also part of the fuel system, providing a means to shut off fuel flow in emergencies or during maintenance. The absence of pressure pumps reflects the aircraft’s design, which prioritizes simplicity and reliability, making gravity feed sufficient for operation.