Sulphur content in diesel oil should not be more than_________________?

A. 10%
B. 5%
C. 1%
D. 0.1%

The firing order in 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. 1-5-2-6-3-4

The efficiency of I.C. engines normally is of the order of_________________?

A. 15-20%
B. 20-25%
C. 25-30%
D. 30-35%

The m.e.p. of a diesel cycle having fixed compression ratio with increase in cut-off will_________________?

A. Increase
B. Decreae
C. Be unaffected
D. Depend on other factors

Detonation can be controlled by_____________________?

A. Varying compression ratio
B. Using lian mixture
C. Retarding the spark timing
D. Reducing the r.p.m.

The specific gravity of diesel oil Is_________________?

A. 1
B. 0.7
C. 0.85
D. 0.5

Freezing temperature of petrol is usually__________________?

A. 0°c
B. – 10°c
C. 10°c
D. Less than – 30°c

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. 1-2-4-3

The compression ratio of motor cars is___________________?

A. 5
B. 7
C. 10
D. 13

The ignition of charge by some hot surface in the engine cylinder before operation of spark plug is known as________________?

A. Auto ignition
B. Preignition
C. Retarded ignition
D. Accelerated ignition