Technician A says that the crankshaft turns 720° during one four stroke cycle. Technician B says that the camshaft turns 360° during one four stroke cycle. Who is right?
A)Technician A only
B)Technician B only
C)Both A and B
D)Neither A nor B

Question

Quizplus · Accepted Answer

Technician A is correct because in a four-stroke cycle (intake, compression, power, exhaust), the crankshaft completes two full rotations (720°). Technician B is also correct because the camshaft, which operates the valves, turns at half the speed of the crankshaft, completing one full rotation (360°) during the same cycle.

Technician a Says That the Crankshaft Turns 720° During One