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Internal Combustion Engines

Internal Combustion Engines
The increase in intake temperature of internal combustion engines will ___ efficiency.

Increase
Have no effect on
Decrease
None of the listed here

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Internal Combustion Engines
The mechanical efficiency (ηm) of the engine is given by

ηm = (B.P × I.P)/100
ηm = I.P/B.P
None of the listed here
ηm = B.P/I.P

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Internal Combustion Engines
The air standard efficiency of an I.C. engine depends on

None of these
Fuel used
Speed of engine
Compression ratio

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

Relative efficiency
Efficiency ratio
Overall efficiency
Net efficiency

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

0.15 kg
0.2 kg
0.3 kg
0.25 kg

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Internal Combustion Engines
For maximum power generation, the air fuel ratio for a petrol engine for vehicles, is of the order of

0.50069444444444
0.75069444444444
0.62569444444444
0.37569444444444

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