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Internal Combustion Engines

Internal Combustion Engines
All heat engines utilize

Low heat value of oil
Net calorific value of oil
Calorific value of fuel
High heat value of oil

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Internal Combustion Engines
In a four stroke cycle petrol engine, the pressure inside the engine cylinder during the suction stroke is __________ the atmospheric pressure.

None of these
Equal to
Above
Below

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Internal Combustion Engines
If the compression ratio of an engine working on Otto cycle is increased from 5 to 7, the percentage increase in efficiency will be

0.02
0.14
0.08
0.04

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Internal Combustion Engines
In a diesel engine, the duration between the time of injection and ignition, is known as

Pre-ignition period
Delay period
Burning period
Period of ignition

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Internal Combustion Engines
When crude oil is heated, then which of the following hydrocarbon is given off first?

Paraffin
Kerosene
Natural gas
Gasoline

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Internal Combustion Engines
A diesel engine has

1 valve
2 valves
3 valves
4 valves

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MORE MCQ ON Internal Combustion Engines

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