A six-cylinder 4-stroke engine has bore diameter 11 cm and stroke len – McqOptions

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1.	A six-cylinder 4-stroke engine has bore diameter 11 cm and stroke length 12.2 cm running at 2800 rev/min consumes 455m2 of air per hour. What would be the volumetric efficiency of the engine?
A.	75%
B.	78.7%
C.	77.8%
D.	76%
Answer» D. 76%

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