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Internal Combustion Engines

Internal Combustion Engines
If the compression ratio in I.C. engine increases, then its thermal efficiency will

None of these
Remain same
Increase
Decrease

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Internal Combustion Engines
A diesel engine as compared to petrol engine (both running and rated load) is

Other factors will decide it
Equally efficient
Less efficient
More efficient

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

Natural aspirator
Centrifugal pump
Supercharger
Movement of engine piston

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

Ionization
Vaporisation
Atomization
Carburetion

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Internal Combustion Engines
Crankcase explosion in I.C. engines usually occurs as

Never occurs
Both mild and big explosions occurs simultaneously
First a mild explosion followed by a bi explosion
First a big explosion followed by a mil explosion

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Internal Combustion Engines
In a petrol engine, the mixture has the lowest pressure at the

End of compression stroke
Beginning of suction stroke
None of these
End of suction stroke

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