What are the primary components of the Cessna 172's fuel system?

The primary components of the Cessna 172's fuel system include fuel tanks, strainer, pumps, and carburetor. The fuel tanks serve as the storage for fuel, with typically one tank located in each wing of the aircraft. The fuel strainer, often referred to as a fuel bowl or fuel filter, cleanses any sediment or impurities from the fuel before it reaches the engine. Pumps in the system (such as the engine-driven fuel pump and electric fuel pump) are responsible for delivering fuel from the tanks to the engine. Lastly, the carburetor mixes fuel with air before it enters the engine for combustion, ensuring the correct fuel-air ratio for optimal performance.

Other answer choices contain components that are either not part of the fuel system or are incorrectly emphasized. For instance, "engines" and "injectors" are more related to the engine systems rather than the fuel system itself. Moreover, including "gages" multiple times does not accurately represent core components of the fuel system. Thus, the comprehensive set of components outlined in the correct choice best describes the critical elements that make up the Cessna 172's fuel system.