What is the purpose of dynamic dampers on crankshafts? - ANS They reduce engine vibration.



What types of bearings are generally found in reciprocating engines? - ANS Plain, ball and roller bearings.



Are the connecting rods used in each cylinder of a radial engine the same? Explain. - ANS No. Radial engines use master and articulating rod assemblies.



Name the different types of piston rings. - ANS Oil control, compression, and oil scraper.



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