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Internal Combustion Engines

Internal Combustion Engines
Scavenging is usually done to increase

Fuel consumption
Thermal efficiency
Power output
Speed

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Internal Combustion Engines
During idling, a petrol engine requires _________ mixture.

None of these
Chemically correct
Rich
Lean

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Internal Combustion Engines
In order to mix air and petrol in the required proportion and to supply it to the engine during suction stroke, then ___ is employed.

None of the listed here
Carburettor
Fuel pump
Injector

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Internal Combustion Engines
Most high speed compression engines operate on

Special type of air cycle
Otto cycle
Dual combustion cycle
Diesel cycle

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

0.3 kg
0.25 kg
0.15 kg
0.2 kg

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Internal Combustion Engines
The air requirement of a petrol engine during starting compared to theoretical air required for complete combustion is

Same
More
Less
May be more or less depending on engine capacity

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