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Internal Combustion Engines

Internal Combustion Engines
A 75 cc engine has following parameter as 75 cc

Fuel tank capacity
Cylinder volume
Swept volume
Lube oil capacity

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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 temperature
Rate of rise of pressure
Peak pressure

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

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

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Internal Combustion Engines
Pre-ignition is caused by the spontaneous combustion of the mixture before the end of the compression stroke, and is due to

Overheated spark plug points
Red hot carbon deposits on cylinder walls
Cylinder walls being too hot
Any one of the listed here

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Internal Combustion Engines
By higher octane number of spark ignition fuel, it is meant that the fuel has

Lower volatility
Longer ignition delay
Higher heating value
Higher flash point

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Internal Combustion Engines
The thermal efficiency of diesel engines is about

0.5
0.3
0.15
0.7

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MORE MCQ ON Internal Combustion Engines

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