Explore topic-wise MCQs in Ic Engine.

This section includes 9 Mcqs, each offering curated multiple-choice questions to sharpen your Ic Engine knowledge and support exam preparation. Choose a topic below to get started.

1.

The running cost of a petrol engine is ____________ that of a diesel engine.

A. higher than
B. lower than
C. equal to
D. none of the mentioned
Answer» B. lower than
Discussion
2.

A petrol engine has compression ratio from __________

A. 6 to 10
B. 10 to 15
C. 15 to 25
D. 25 to 40
Answer» B. 10 to 15
Discussion
3.

The colour of exhaust from diesel engine is generally __________

A. white
B. bluish
C. black
D. violet
Answer» D. violet
Discussion
4.

A diesel engine, during suction stroke draws __________

A. air only
B. diesel only
C. a mixture of petrol and air
D. none of the mentioned
Answer» B. diesel only
Discussion
5.

In order to mix air and petrol in the required proportion and to supply it to the engine during suction stroke, then ____________ is employed.

A. fuel pump
B. injector
C. carburetor
D. none of the mentioned
Answer» D. none of the mentioned
Discussion
6.

A petrol engine, during suction stroke draws __________

A. air only
B. petrol only
C. a mixture of petrol and air
D. none of the mentioned
Answer» D. none of the mentioned
Discussion
7.

If petrol is used in a diesel engine, then __________

A. low power will be produced
B. efficiency will be low
C. higher knocking will occur
D. black smoke will be produced
Answer» D. black smoke will be produced
Discussion
8.

If the temperature of intake air in internal combustion engine increases, then its efficiency will __________

A. remain same
B. decrease
C. increase
D. none of the mentioned
Answer» C. increase
Discussion
9.

Which of the following option is correct when diesel is compared to petrol?

A. highly ignitable
B. more difficult to ignite
C. less difficult to ignite
D. none of the mentioned
Answer» C. less difficult to ignite
Discussion