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Internal Combustion Engines

Internal Combustion Engines
Installation of supercharger on a four cycle diesel engine can result in the following percentage increase in power

Up to 100%
Up to 75%
Up to 35%
Up to 50%

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Internal Combustion Engines
The correct mixture strength (by weight) for petrol is about

20.4 : 1
18.5 : 1
14.6 : 1
22.6 : 1

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Internal Combustion Engines
The calorific value of gaseous fuels is expressed in terms of

kcal
kcal/m²
kcal/m3
kcal/kg

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Internal Combustion Engines
The turbine of the turboprop engine is ___ that of the turbojet engine.

Same as
Bigger than
None of the listed here
Smaller than

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

Increase
Remain same
None of these
Decrease

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

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

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