Answer Posted / suman kumar

in four stroke engine two complete cycles involve.in one
complete cycle crankshaft rotate 360degree,so it can alaso
say that in one complete revolution involve two stroke
engine and each stroke crank shaft rotate 180 degree.
so in four stroke two complete revolution means 720degree
rotation of crankshaft and each stroke crank shaft make 180
degree.
also we know that process of four stroke is suction,c
ompression,expension,exhaust .

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