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Internal Combustion Engines

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

Increase
Remain same
None of these
Decrease

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Internal Combustion Engines
The maximum propulsive efficiency of a turbojet engine is at a speed of

1000 km/h
3000 km/h
2400 km/h
2000 km/h

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Internal Combustion Engines
In the opposed piston diesel engine, the combustion chamber is located

There is no such criterion
Above the piston
Below the piston
Between the pistons

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Internal Combustion Engines
The advancing of spark timing in spark ignition engines will ___ knocking tendency.

Not effect
Increase
Reduce
None of the listed here

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Internal Combustion Engines
The reference fuels for knock rating of spark ignition engines would include

Normal octane and aniline
Iso-octane and alpha-methyl naphthalene
Iso-octane and normal hexane
Normal heptane and iso-octane

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

Rankine cycle
Joule cycle
Stirling cycle
Otto cycle

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