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Internal Combustion Engines

Internal Combustion Engines
The thermal efficiency of a petrol engine is _________ as compared to diesel engine.

None of these
Same
Less
More

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Internal Combustion Engines
The ratio of the brake power to the indicated power is called

Overall efficiency
Volumetric efficiency
Indicated thermal efficiency
Mechanical efficiency

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Internal Combustion Engines
The _________ engines can work on very lean mixture of fuel.

Spark ignition
Compression ignition
Both (A) and (B)
None of these

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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

Same
Less
More or less depending on power rating
More

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Internal Combustion Engines
Which of the following statement is correct regarding normal cetane?

It has long carbon chain structure
It is a standard fuel used for knock rating of diesel engines
Its chemical name is normal hexadecane
All of these

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Internal Combustion Engines
The scavenging efficiency of a four stroke cycle diesel engine is

Below 50%
Between 85 and 95%
Between 95 and 100%
Between 50 and 85%

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MORE MCQ ON Internal Combustion Engines

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