Fuel Supply System — Part 1 MCQs with Explanations

The Common Rail Fuel Injection System stores diesel fuel at very high pressure in a common pipe called a rail, which continuously supplies fuel to all injectors. In this system, high-pressure fuel is available to all injectors all the time , regardless of engine speed or injection timing requirements. The injectors receive fuel from the common rail and electronically control when and how much fuel is injected into the engine cylinders. This arrangement provides better fuel atomization, improved fuel efficiency, lower emissions, and more precise control of injection timing . Other systems such as distributor, inline pump, and rotary fuel injection systems generate and distribute fuel differently and do not continuously maintain high-pressure fuel availability to all injectors simultaneously . Therefore, Option C: Common rail fuel injection system is the correct answer.

Higher self ignition temperature is the correct answer to “A fuel which will detonate less, if it has”. This question is standard in competitive examination syllabi for Fuel Supply System.

Both A and B is the correct answer to “The type of electric fuel pump is”. This question is standard in competitive examination syllabi for Fuel Supply System.

Inside the cylinder is the correct answer to “In an IC engine fuel is”. This question is standard in competitive examination syllabi for Fuel Supply System.

Both A and B is the correct answer to “What is the material for fuel lines”. This question is standard in competitive examination syllabi for Fuel Supply System.

The cetane number of alcohol fuels is very low which prevents their ignition by compression is the correct answer to “Alcohols are unsuitable as diesel engine fuels because”. This question is standard in competitive examination syllabi for Fuel Supply System.

Pump system is the correct answer to “The most widely used fuel supply system for car engines is the”. This question is standard in competitive examination syllabi for Fuel Supply System.

All are correct is the correct answer to “Which of the following is the fuel feed system of a petrol engine”. This question is standard in competitive examination syllabi for Fuel Supply System.

All are correct is the correct answer to “Which of the following is correct for super chargers”. This question is standard in competitive examination syllabi for Fuel Supply System.

All are correct is the correct answer to “What is the gasoline additive”. This question is standard in competitive examination syllabi for Fuel Supply System.

Decreasing compression ratio is the correct answer to “In Spark Ignition (SI) engines, the possibility of knocking can be reduced by”. This question is standard in competitive examination syllabi for Fuel Supply System.

Phosphorus compounds is the correct answer to “. . . . . . . . to control surface ignition and sparkpluq fouling.”. This question is standard in competitive examination syllabi for Fuel Supply System.

All are correct is the correct answer to “The important components of the fuel injection system are”. This question is standard in competitive examination syllabi for Fuel Supply System.

3000°F is the correct answer to “Oxides of nitrogen are formed when the products of combustion are heated above”. This question is standard in competitive examination syllabi for Fuel Supply System.

6°C is the correct answer to “For diesel fuels the pour point for special grade is”. This question is standard in competitive examination syllabi for Fuel Supply System.

Lowest is the correct answer to “Drain plug is fitted at the . . . . . . . . portion of the tank.”. This question is standard in competitive examination syllabi for Fuel Supply System.

Option "Is a paraffin" is the correct answer for this question under Fuel Supply System.

Use thinner gasket is the correct answer to “What is the remedy of "Thick gasket used for mounting fuel pump to block"”. This question is standard in competitive examination syllabi for Fuel Supply System.

Rich mixture is the correct answer to “The air-fuel mixture required at the time of engine start is”. This question is standard in competitive examination syllabi for Fuel Supply System.

Both the fuel pumps is the correct answer to “Which of the following is the type of pumps used”. This question is standard in competitive examination syllabi for Fuel Supply System.

Greek is the correct answer to “Petroleum is a . . . . . . . . word.”. This question is standard in competitive examination syllabi for Fuel Supply System.

Increase the octane rating of fuel is the correct answer to “Ethyl fluid is used to”. This question is standard in competitive examination syllabi for Fuel Supply System.

70 - 120 L is the correct answer to “What is the capacity of fuel tank”. This question is standard in competitive examination syllabi for Fuel Supply System.

0.002 s is the correct answer to “The delay period in a petrol engine is of the order of”. This question is standard in competitive examination syllabi for Fuel Supply System.

All of the above is the correct answer to “The main disadvantage of the mechanical pump is that”. This question is standard in competitive examination syllabi for Fuel Supply System.

A and B is the correct answer to “Fuel is fed to the carburettor in which of the following ways”. This question is standard in competitive examination syllabi for Fuel Supply System.

Venturi is the correct answer to “At very low temperatures, the ice tends to form in the carburettor in the”. This question is standard in competitive examination syllabi for Fuel Supply System.

7 to 15 MPa is the correct answer to “The opening pressure of pintle type nozzle varies from”. This question is standard in competitive examination syllabi for Fuel Supply System.

100 is the correct answer to “Octane number of 2, 2, 4 trimethyl pentane is”. This question is standard in competitive examination syllabi for Fuel Supply System.

A fuel injector consists of a solenoid, a plunger needle valve, and a plunger housing is the correct answer to “Which of the following statements correctly describes the construction of a fuel injector”. This question is standard in competitive examination syllabi for Fuel Supply System.

All are correct is the correct answer to “Which of the following is main cracking processes”. This question is standard in competitive examination syllabi for Fuel Supply System.

Mixture of air and fuel is the correct answer to “The fluid drawn in during suction in petrol engine contains”. This question is standard in competitive examination syllabi for Fuel Supply System.

All of these is the correct answer to “The main advantage of petrol injection system is”. This question is standard in competitive examination syllabi for Fuel Supply System.

Cetane number is the correct answer to “Ignition quality of diesel fuel oil is expressed by an index called”. This question is standard in competitive examination syllabi for Fuel Supply System.

Fresh air is the correct answer to “The working fluid for a diesel engine during the suction stroke is”. This question is standard in competitive examination syllabi for Fuel Supply System.

Is higher is the correct answer to “Self-ignition temperature of diesel as compared to petrol”. This question is standard in competitive examination syllabi for Fuel Supply System.

Crude oil is the correct answer to “All the commercial liquid fuel are derived from”. This question is standard in competitive examination syllabi for Fuel Supply System.

Carburettor is the correct answer to “The air/fuel ratio in a petrol engine is controlled by”. This question is standard in competitive examination syllabi for Fuel Supply System.

All conditions is the correct answer to “The carburettor provides correct amount of air-fuel mixture during”. This question is standard in competitive examination syllabi for Fuel Supply System.

Tetraethyl-lead is the correct answer to “. . . . . . . . to slow down the combustion of the fuel.”. This question is standard in competitive examination syllabi for Fuel Supply System.