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Internal Combustion MCQ - Multiple Choice Question and Answer

Internal Combustion MCQ with detailed explanation for interview, entrance and competitive exams. Explanation are given for understanding.

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Question No : 8
In diesel engine, the compression ratio in comparison to expansion ratio is

Same
Less
More
Variable

Question No : 9
If petrol is used in a diesel engine, then

Low power will be produced
Efficiency will be low
Higher knocking will occur
Black smoke will be produced

Question No : 10
A higher compression ratio causes

Pre-ignition
Increase in detonation
Acceleration in the rate of combustion
Any one of these

Question No : 11
The pressure at the end of compression in the case of diesel engine is of the order of

6 kg/cm
12 kg/cm
20 kg/cm
35 kg/cm

Question No : 12
Scavenging is usually done to increase

Thermal efficiency
Speed
Power output
Fuel consumption

Question No : 13
The air-fuel ratio of the petrol engine is controlled by

Carburettor
Injector
Governor
None of these

Question No : 14
The brake power is the power available

In the engine cylinder
At the crank shaft
At the crank pin
None of these