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Internal Combustion Engines

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

Ionization
Vaporisation
Carburetion
Atomization

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Internal Combustion Engines
In a four stroke cycle petrol engine, the pressure inside the engine cylinder during the suction stroke is __________ the atmospheric pressure.

None of these
Below
Above
Equal to

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Internal Combustion Engines
An hmh flame speed is obtained in diesel engine when air fuel ratio is

Chemically correct mixture
Uniform throughout the mixture
About 35% of rich mixture
About 10% of rich mixture

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Internal Combustion Engines
The ratio of the brake power to the indicated power is called

Indicated thermal efficiency
Volumetric efficiency
Overall efficiency
Mechanical efficiency

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

Turbulence
Scavenging
Pre-ignition
Supercharging

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

Less efficient
None of the listed here
Equally efficient
More efficient

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