If an engine is fitted with a fuel injection system, what is true about the need for priming?

In engines equipped with a fuel injection system, priming is often not necessary because these systems are designed to ensure that the fuel is readily available for combustion as soon as the engine is started. Fuel injection systems typically use pressurized fuel, which allows for quick delivery to the combustion chamber, eliminating the need for additional priming to draw fuel from the tank.

When an engine starts, the fuel injection system can rapidly fill the fuel lines and components, thanks to the pressure created by the fuel pump. This efficiency means that the system can quickly achieve the necessary fuel supply for ignition without requiring a separate priming mechanism.

In contrast, in certain traditional carbureted engines, priming might be necessary to ensure there is enough fuel in the intake for starting, especially after the engine has been sitting unused for a period. Thus, the correct choice recognizes that a dedicated priming system is unnecessary for effectively operating a fuel injection setup.