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MEO Class II – EK-Motor : 2011/MAR/09 – 2015/OCT/09 – 2020/NOV/07 – 2021/APR/09 – 2024/JAN/07
Question
Q9. With reference to crankshafts, explain EACH of the following:
A. The cause and effects of torsional vibration;
B. The term critical speed indicating why it can be a problem;
C. The term fatigue cracking and state, with reasons, TWO factors of crankshaft operation which have greatest influence on the likelihood of fatigue cracking
D. How a torsional vibration damper can reduce the effects of torsional vibration
Asked in Year/Month/Ques No.