After a long period of operation, a wear ridge, caused by piston ring action, will develop near the top of the cylinder liner. This ridge must be removed during maintenance in order to prevent __________.

Correct Answer: Option D — breaking of the rings, ring lands, or both during piston removal

The upper cylinder liner develops a hardened wear ridge where the top piston ring reverses direction. During piston overhaul, this ridge must be reamed or honed away to prevent newly installed piston rings or ring lands from striking the ridge and fracturing.