Number of working strokes per min. for a four stroke cycle engine are _________ the speed of the engine in r.p.m.
A. Equal to
B. One-half
C. Twice
D. Four-times
Answer: Option B
Solution (By Examveda Team)
Number of working strokes per min. for a four stroke cycle engine are one half the speed of the engine in r.p.m.This Question Belongs to Mechanical Engineering >> Internal Combustion Engines (I.C. Engines)
Due to there is one power stroke in 2 revolution of crankshaft that's y it's 1/2 of engine r.p.m
Due to there is one power stroke in 2 revolution of crankshaft that's y it's 1/2 of engine r.p.m
For 4 stroke engine the power stroke is obtained for 2 revolutions of crank
Hence No. of strokes 'n' = Speed 'N' / 2