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Internal Combustion Engines

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

More or less depending on power rating
Less
Same
More

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Internal Combustion Engines
A diesel engine is ___ as compared to petrol engine, both running at rated load.

More efficient
None of the listed here
Equally efficient
Less efficient

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Internal Combustion Engines
For the same power developed in I.C. engines, the cheaper system is

Turbo charger
Supercharged
Centrifugal pump
Naturally aspirated

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

Otto cycle
Stirling cycle
Rankine cycle
Joule cycle

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Internal Combustion Engines
Iso-octane (C₈H₁₈) has octane number of

100
120
50

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Internal Combustion Engines
In petrol engines, advancing of the spark timing will ___ the knocking tendency.

None of the listed here
Not effect
Increase
Decrease

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