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Internal Combustion Engines

Internal Combustion Engines
In diesel engine the diesel fuel injected into cylinder would burn instantly at about compressed air temperature of

250°C
500°C
2000°C
1000°C

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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.

Carburettor
Fuel pump
Injector
None of the listed here

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

Volumetric efficiency
Mechanical efficiency
Indicated thermal efficiency
Overall efficiency

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Internal Combustion Engines
In a four stroke cycle, the minimum temperature inside the engine cylinder occurs at the

End of exhaust stroke
Beginning of exhaust stroke
Beginning of suction stroke
End of suction stroke

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Internal Combustion Engines
A 5 BHP engine running at full load would consume diesel of the order of

3 kg/hr
0.3 kg/hr
1 kg/hr
5 kg/hr

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Internal Combustion Engines
In diesel engine, the compression ratio in comparison to expansion ratio is

More
Same
Less
Variable

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