The pressure in an engine cylinder is less than atmospheric pressure when the engine is performing which stroke?(a) Suction(b) Compression(c) Power(d) ExhaustThis question was posed to me during an online interview.Origin of the question is Energy Cycle in section Internal Combustion Engines of Automobile Engineering

The pressure in an engine cylinder is less than atmospheric pressure w

1.	The pressure in an engine cylinder is less than atmospheric pressure when the engine is performing which stroke?(a) Suction(b) Compression(c) Power(d) ExhaustThis question was posed to me during an online interview.Origin of the question is Energy Cycle in section Internal Combustion Engines of Automobile Engineering
Answer» Correct answer is (a) SUCTION For explanation I WOULD SAY: During suction stroke the INSIDE pressure is less than atmospheric pressure.

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