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Internal Combustion Engines

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

None of these
ηm = B.P/I.P
ηm = I.P/B.P
ηm = (B.P × I.P)/100

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Internal Combustion Engines
For the same power developed in I.C. engines, the cheaper system is

Centrifugal pump
Turbo charger
Supercharged
Naturally aspirated

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Internal Combustion Engines
The spark ignition engines are governed by

Hit and miss governing
Quantitative governing
Qualitative governing
Combination of (B) and (C)

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

0.15 kg
0.25 kg
0.3 kg
0.2 kg

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Internal Combustion Engines
As a result of detonation in an I.C. engine, following parameter attains very high value

Peak temperature
Rate of rise of pressure
Rate of rise of temperature
Peak pressure

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

Compression ratio
None of these
Fuel used
Speed of engine

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MORE MCQ ON Internal Combustion Engines

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