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Internal Combustion Engines

Internal Combustion Engines
In petrol engine, using a fixed octane rating fuel and fixed compression ratio, supercharging will _________ the knocking tendency.

Not effected
Increase
None of these
Decrease

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Internal Combustion Engines
The process of breaking up or a liquid into fine droplets by spraying is called

Vaporisation
Ionization
Atomization
Carburetion

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Internal Combustion Engines
In the crankcase method of scavenging, the air pressure is produced by

Movement of engine piston
Supercharger
Centrifugal pump
Natural aspirator

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Internal Combustion Engines
The ratio of indicated thermal efficiency to the corresponding air standard cycle efficiency is called

Net efficiency
Efficiency ratio
Overall efficiency
Relative efficiency

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

Scavenging
Turbulence
Pre-ignition
Supercharging

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Internal Combustion Engines
The specific fuel consumption per BHP hour for diesel engine is approximately

0.15 kg
0.25 kg
0.3 kg
0.2 kg

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