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Internal Combustion Engines

Internal Combustion Engines
In petrol engine, using a fixed octane rating fuel and fixed compression ratio, supercharging will _________ the knocking tendency.

Increase
None of these
Decrease
Not effected

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Internal Combustion Engines
The specific fuel consumption per BH hour for a petrol engine is approximately

0.25 kg
0.15 kg
0.2 kg
0.3 kg

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Internal Combustion Engines
Scavenging is usually done to increase

Power output
Thermal efficiency
Speed
Fuel consumption

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

None of the listed here
Increase
Decrease
Have no effect on

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Internal Combustion Engines
Iso-octane (C₈H₁₈) has octane number of

120
50
0
100

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

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

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MORE MCQ ON Internal Combustion Engines

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