Mechanical Engineering - IC Engines and Nuclear Power Plants - Discussion


The pressure inside the cylinder is __________ the atmospheric pressure during the exhaust stroke.

[A]. equal to
[B]. below
[C]. above

Answer: Option C


No answer description available for this question.

Akki said: (Aug 26, 2016)  
It should be lower because while suction stroke volume increase suddenly.

Anil Mathi said: (Jan 31, 2017)  
In compression, stroke pressure is more than atmosphere pressure.

Karthi said: (Feb 23, 2018)  
It is equal, the valves exhaust stroke is opened and piston pushes gases to ATM at ATM pressure only.

Mani said: (Mar 18, 2018)  
During exhaust, Pressure must be greater than the atmospheric pressure unless leakage of air will take place and hence it will decrease the efficiency.

Dwaipayan said: (Feb 22, 2019)  
Exhaust is an assumed constant pressure process like suction. So, the answer should be option A.

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