250+ TOP MCQs on Electronic Injection System – 2 and Answers

IC Engines Multiple Choice Questions on “Electronic Injection System – 2”.

1. The electronic fuel injection, eliminates majority of carburettor pressure loses and almost eliminates the requirement of manifold heating.
a) True
b) False
Answer: a
Clarification: None.

2. Manifold _____________ is eliminated due to the fuel being injected into or close to the cylinder and need not flow through the manifold.
a) heating
b) wetting
c) cooling
d) none of the mentioned
Answer: b
Clarification: Generally, manifold wetting is eliminated due to the fuel being injected into or close to the cylinder and need not flow through the manifold and not heating or cooling.

3. _____________ of fuel is independent of cranking speed and therefore starting will be easier.
a) Ignition
b) Atomization
c) Condensation
d) None of the mentioned
Answer: b
Clarification: Atomization of fuel is independent of cranking speed and therefore starting will be easier and ignition and condensation are not related to cranking speed.

4. Better atomization and _____________ will make the engine less knock prone.
a) ignition
b) vapourization
c) condensation
d) none of the mentioned
Answer: b
Clarification: Engine knock is dependent on poor atomization and vapourization conditions, so better atomization and vapourization will make the engine less knock prone.

5. Formation of ice on the _____________ plate is eliminated in electronic fuel injection.
a) throttle
b) nozzle
c) engine
d) none of the mentioned
Answer: a
Clarification: Generally, the formation of ice on the throttle plate is eliminated in electronic fuel injection and not of nozzle.

6. In an electronic fuel injection, variation of air-fuel ratio is almost negligible even when the vehicle takes different positions like turning, moving on gradients, uneven roads, etc.
a) True
b) False
Answer: a
Clarification: None.

7. In an electronic fuel injection, position of the injection unit is critical.
a) True
b) False
Answer: b
Clarification: No, in fact, in electronic fuel injection, position of the injection unit is not so critical and thereby the height of the engine can be less.

8. In an electronic fuel injection, the maintenance cost is?
a) low
b) high
c) nil
d) none of the mentioned
Answer: b
Clarification: Generally, in electronic fuel injection, the maintenance cost is high.

9. In an electronic fuel injection, the servicing is very ___________
a) difficult
b) easy
c) nil
d) none of the mentioned
Answer: a
Clarification: The servicing is very difficult in electronic fuel injection.

10. In an electronic fuel injection, there is a possibility of malfunctioning of some sensors.
a) True
b) False
Answer: a
Clarification: None.