Question 413Motor Plants - Assistant Engineer70% to pass
Excessive side clearance between a piston ring and its groove will cause the ring to_______________.
AI Explanation
The correct answer is D) hammer the piston land below the ring.
Excessive side clearance between a piston ring and its groove allows the ring to move up and down within the groove. This can cause the ring to hammer the piston land below the ring, which can lead to damage and wear on that part of the piston. The other options are incorrect because: A) ring expansion is caused by heat, not side clearance; B) scuffing of the cylinder liner is caused by tight ring fit, not excessive clearance; and C) hammering the land above the ring is not a consequence of excessive side clearance.
Related Questions
#411 When a piston is removed from a diesel engine for maintenance, the piston should be examined for_______________.#412 The insertion of shims between the foot of a marine type connecting rod and a bearing box would result in _______________.#414 If the compression rings on a diesel engine piston become stuck in the ring groove, the cause may be due to _______________.#415 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_______________. #416 When installing the bearing cap on the device shown in the illustration, which of the precautions listed must be observed? Illustration MO-0121