Explore topic-wise MCQs in Ic Engine.

This section includes 12 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_EFFICIENCY_OF_I.C._ENGINES_NORMALLY_IS_OF_THE_ORDER_OF?$

A. 15-20%
B. 20-25%
C. 25-30%
D. 30-35%
Answer» E.
Discussion
2.

Sulphur content in diesel engine oil should not be more than$

A. 10%
B. 5%
C. 1%
D. 0.1%
Answer» D. 0.1%
Discussion
3.

The_firing_order_of_a_six_stroke_I.C._engine_is$

A. 1-3-6-5-2-4
B. 1-4-2-5-6-3
C. 1-6-2-5-4-3
D. 1-5-3-4-2-6
Answer» E.
Discussion
4.

The_ash_content_in_diesel_oil_should_be_not_be_more_than

A. 1%
B. 5%
C. 0.1%
D. 0.01%
Answer» E.
Discussion
5.

Choose the correct statement, detonation can be controlled b?

A. varying compression ratio
B. using lean mixture
C. retarding the spark timing
D. reducing the r.p.m
Answer» D. reducing the r.p.m
Discussion
6.

Freezing temperature of petrol is about

A. 0.65
B. 0.75
C. 0.85
D. 0.95
Answer» C. 0.85
Discussion
7.

The specific gravity of diesel oil is

A. 1
B. 0.7
C. 0.85
D. 0.5
Answer» D. 0.5
Discussion
8.

The compression ratio of motor cars is

A. 5
B. 7
C. 10
D. 13
Answer» C. 10
Discussion
9.

The most popular firing order in case of four cylinder in-line I.C. engine is

A. 1-2-3-4
B. 1-3-2-4
C. 1-4-2-3
D. 1-3-4-2
Answer» E.
Discussion
10.

Carbon residue in diesel oil should not be more than

A. 1%
B. 0.5%
C. 0.1%
D. 0.01%
Answer» D. 0.01%
Discussion
11.

Calorific value of diesel oil is of the order of

A. 3000 kcal/kg
B. 5000 kcal/kg
C. 7500 kcal/kg
D. 10000 kcal/kg
Answer» E.
Discussion
12.

For best results of efficient combustion, high speed diesel engines need an approximate cetane number of

A. 100
B. 10
C. 50
D. 5
Answer» D. 5
Discussion