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Internal Combustion Engines

Internal Combustion Engines
The thermodynamic cycle on which the petrol engine works, is

Joule cycle
Stirling cycle
Rankine cycle
Otto cycle

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

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

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Internal Combustion Engines
High speed compression engines operate on

Diesel cycle
All of these
Otto cycle
Dual combustion cycle

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Internal Combustion Engines
If the intake air temperature of I.C. engine increases, its efficiency will

Remain same
None of these
Increase
Decrease

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Internal Combustion Engines
The theoretically correct air fuel ratio for petrol engine is of the order of

0.62569444444444
0.50069444444444
0.25069444444444
0.37569444444444

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Internal Combustion Engines
The thermal efficiency of diesel engines on weak mixtures is

Unaffected
Lower
Dependent on other factors
Higher

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