While discussing the four-stroke cycle, Technician A says that during the intake stroke, the piston is pulled down by the turning crankshaft, creating a vacuum above it. Technician B says this event occurs during the exhaust stroke. Who is right?
A)A only
B)B only
C)Both A and B
D)Neither A nor B

Question

Quizplus · Accepted Answer

During the intake stroke, the piston moves down due to the turning crankshaft, which creates a vacuum above it. This vacuum pulls the air-fuel mixture into the cylinder through the open intake valve. During the exhaust stroke, the piston moves up to expel the exhaust gases from the cylinder through the open exhaust valve. Therefore, Technician A is correct and Technician B is incorrect.

While Discussing the Four-Stroke Cycle, Technician a Says That During