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Internal Combustion Engines

Internal Combustion Engines
The loud pulsating noise heard within the cylinder of an internal combustion engine is known as

Pre-ignition
Supercharging
Detonation
Turbulence

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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.

Below
Equal to
Above
None of these

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Internal Combustion Engines
The ratio of indicated thermal efficiency to the corresponding air standard cycle efficiency is called

Overall efficiency
Efficiency ratio
Net efficiency
Relative efficiency

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Internal Combustion Engines
The air standard efficiency of an I.C. engine depends on

None of these
Fuel used
Compression ratio
Speed of engine

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Internal Combustion Engines
Installation of supercharger on a four cycle diesel engine can result in the following percentage increase in power

Up to 35%
Up to 75%
Up to 100%
Up to 50%

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Internal Combustion Engines
The air standard efficiency of an Otto cycle compared to diesel cycle for the given compression ratio is

Less
More
Same
More or less depending on power rating

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MORE MCQ ON Internal Combustion Engines

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