IC Engines Multiple Choice Questions on “Injection Pump”.
1. The ___________ type injection pump consist of a reciprocating plunger inside a barrel.
a) jerk
b) distributer
c) jerk & distributer
d) none of the mentioned
Answer: a
Clarification: The jerk type injection pump consists of a reciprocating plunger inside a barrel and not a distributer.
2. The plunger of a jerk type pump is driven by a ___________
a) crankshaft
b) camshaft
c) pully
d) none of the mentioned
Answer: b
Clarification: Generally, the plunger of a jerk type pump is driven by a camshaft.
3. The axial distance traversed by the plunger is ____________ for every stroke.
a) same
b) different
c) unpredictable
d) none of the mentioned
Answer: a
Clarification: The axial distance traversed by the plunger is constant and hence same for every stroke.
4. Bosh fuel injection pump is an example of _______________ type fuel injector pump.
a) jerk
b) distributer
c) jerk & distributer
d) none of the mentioned
Answer: a
Clarification: Bosh fuel injection pump is an example of jerk type fuel injector pump and not distributer type.
5. In a _____________ type of injection pump, the fuel is distributed to each cylinder by means of a rotor.
a) jerk
b) distributer
c) jerk & distributer
d) none of the mentioned
Answer: b
Clarification: In a distributer type of injection pump, the fuel is distributed to each cylinder by means of a rotor while in a jerk type plunger is used.
6. What is the advantage of petrol injections?
a) higher power
b) free from icing trouble
c) higher power & free from icing trouble
d) none of the mentioned
Answer: c
Clarification: Both higher power and free from icing trouble are the advantages of a petrol injection system.
7. What is the disadvantage of petrol injection?
a) high initial cost
b) complicated design
c) high initial cost & complicated design
d) none of the mentioned
Answer: c
Clarification: Both high initial cost and complicated design are the disadvantages of a petrol injection system.
8. In the idle speed adjustment of the pneumatic governor, when the set-screw in the system is slightly screwed in _____________
a) the idling speed will be reduced
b) the idling speed will be increased
c) there will be no idling speed
d) none of the mentioned
Answer: b
Clarification: None.