Mechanical seals are used Production Engineering Mcqs October 17, 2019 BILAL KHATTAK0 A.To prevent vibrations B.To prevent leakage C.To reduce friction D.To balance the equipment E.None of the above Related Mcqs: All mechanical seals have two flat sealing surfaces In vibration analysis ‘Beat’ frequency is The ‘crowning’ of flat pulleys is generally done pulley The gaskets are used to: The function of a piston rins in an internal combustion engine is Most serious energy loss in reaction steam turbine The propose of using multiple pass heat exchangers is to Apart from reducing friction and cooling the surfaces, the function of lubricant in I.C. engines is The insulation on a current carrying conductor is provided __________? Piston ring are plated with chromium, cadmium or phosphate to