Answer :
Final answer:
The fuel pump is responsible for building up the fuel injection pressure in a fuel injector. In a fuel injection system, the fuel pump pressurizes the fuel and delivers it to the fuel injectors at the required pressure. Hence correct option is D) Fuel Pump.
Explanation:
The fuel pump pressurizes the fuel and delivers it to the fuel injectors at the required pressure. This pressurized fuel is then sprayed into the combustion chamber of the engine as needed for proper combustion.
The other options mentioned also play roles in the fuel injection system:
a. Solenoid: The solenoid in a fuel injector controls the opening and closing of the injector's nozzle. It determines when and how much fuel is sprayed into the combustion chamber.
b. Regulator: The fuel pressure regulator helps maintain a consistent and controlled fuel pressure within the fuel rail. It ensures that the fuel pressure remains within the desired range as the engine's operating conditions change.
c. Common Rail: The common rail is a component in certain types of modern fuel injection systems, particularly common rail diesel systems. It acts as a high-pressure reservoir that stores pressurized fuel, which is then distributed to individual fuel injectors as needed.
So, while all these components are important in a fuel injection system, the fuel pump is primarily responsible for building up the necessary fuel injection pressure. So the answer is d) fuel pump.
Learn more about Fuel pump here:
https://brainly.com/question/18400315
#SPJ11
