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Automobile Engineering Practice Test: Petrol Engine Fuel System
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Avg score: 79% • Most missed: “Why is the small hole provided in the pump body?”

A petrol engine's fuel system consists of several components that work together to transfer fuel from the tank to the engine for combustion.

The main components of the fuel system are: 
Fuel tank, Fuel pump, Fuel filter, Fuel injectors, Fuel pressure regulator, Carburetor, Fuel lines, Air cleaner, Inlet manifold, Supply and return pipelines. 
 

Automobile Engineering Practice Test: Petrol Engine Fuel System
Time left 00:00
10 Questions

1. What is the pressure differential causing fuel flow if the venturi depression is found to be 105 cm of water?
2. If petrol has a density of 800 kg/m3 and the discharge nozzle is located 8 mm above the level of petrol in a float chamber. What is the pressure differential causing airflow?
3. Which of the following is the most accurate petrol injection system?
4. Why is the small hole provided in the pump body?
5. Which of the following is the most widely used fuel supply system?
6. When is the choke used in the engine?
7. Where is the lean air-fuel mixture needed?
8. What does the venturi in carburetor cause?
9. What is the pressure differential causing fuel flow if the venturi depression is found to be 105 cm of water?
10. What is the value of the rate of flow of fuel if the coefficient discharge of fuel is 0.75, area of the jet is 0.885 mm2, density of the fuel is 780 kg/m3, and pressure differential causing fuel flow is 15000 Pa?

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