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INTERNAL COMBUSTION ENGINES

Internal Combustion Engines
The theoretically correct air fuel ratio for petrol engine is of the order of

0.25069444444444
0.62569444444444
0.50069444444444
0.37569444444444

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Internal Combustion Engines
In petrol engines, the delay period is of the order of

0.004 second
0.003 second
0.001 second
0.002 second

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Internal Combustion Engines
The inlet value of a four stroke cycle I.C engine remains open for nearly

235°
200°
180°
125°

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

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

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Internal Combustion Engines
A higher compression ratio causes

Any one of these
Acceleration in the rate of combustion
Pre-ignition
Increase in detonation

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