What are the two primary types of electrical fuel pumps?

The correct choice identifies the two primary types of electrical fuel pumps as in line and in tank. In the context of fuel delivery systems, in-line pumps are typically positioned outside the fuel tank and are used to push fuel to the engine from a tank or reservoir. They are often used in applications that require a consistent fuel supply, especially in high-performance vehicles.

In contrast, in-tank pumps are located inside the fuel tank itself and are designed to directly deliver fuel to the engine from within. This configuration allows for better fuel delivery efficiency and maintains the pump's ability to stay submerged, which aids in cooling and reduces the risk of pump failure.

Understanding these two types is critical for technicians, as each serves specific purposes and applications within different automotive systems. Knowledge of both types enables better diagnosis and repair of fuel delivery issues, ensuring vehicles operate reliably and efficiently.