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Internal Combustion Engines

Internal Combustion Engines
In order to prevent knocking in spark ignition engines, the charge away from the spark plug should have

Low density
All of these
Long ignition delay
Low temperature

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Internal Combustion Engines
If the ratios of all the corresponding linear dimensions are equal, then the model and the prototype are said to have

None of these
Kinematic similarity
Geometric similarity
Dynamic similarity

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

Decrease
Increase
None of these
Remain same

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Internal Combustion Engines
The operation of forcing additional air under pressure into the engine cylinder is known as

Carburetion
Turbulence
Supercharging
Delay period

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

Equally efficient
None of the listed here
Less efficient
More efficient

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