Piston rings are not completely closed because __________(a) Closed rings are hard to manufacture(b) Gap allows the ring to expand and fit over(c) They are designed to let pass some lubricant to the combustion chamber(d) None of the mentionedI got this question in examination.Query is from Automobile in section Internal Combustion Engines of Automobile Engineering

Piston rings are not completely closed because __________(a) Closed ri

1.	Piston rings are not completely closed because __________(a) Closed rings are hard to manufacture(b) Gap allows the ring to expand and fit over(c) They are designed to let pass some lubricant to the combustion chamber(d) None of the mentionedI got this question in examination.Query is from Automobile in section Internal Combustion Engines of Automobile Engineering
Answer» RIGHT answer is (b) Gap allows the ring to expand and FIT over Easy explanation: PISTON rings expand DUE to heat of combustion and fit over.

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