Two technicians are describing the reasons for the greatest amount of wear near the top of the cylinder wall, causing taper. Technician A says that higher cylinder pressures near the top part of piston travel increase ring pressure against the cylinder walls. Technician B says a lack of upper cylinder wall lubricant takes place because lubrication oil can only be carried into this area on the face of the compression ring. Who is right?
A)A only"
B)B only"
C)Both A and B
D)Neither A nor B"

Question

Quizplus · Accepted Answer

Both technicians are correct. Technician A is right because higher cylinder pressures do increase ring pressure against the cylinder walls, causing wear. Technician B is also correct because the lack of lubricant in the upper cylinder wall area contributes to wear, as oil is primarily carried by the compression ring.

Two Technicians Are Describing the Reasons for the Greatest Amount