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At what position, crankshaft experience maximum bending moment?(a) Bottom dead center(b) Top dead center(c) Middle position(d) Dead centerI have been asked this question in an interview for job.This interesting question is from IC Engine in section Design of IC Engine Components of Automotive Engine Design

Answer»

The correct option is (B) Top dead center

The best EXPLANATION: The crank is at the top dead center POSITION and subjected to MAXIMUM bending moment and no torsional moment. At this position Piston, the connecting rod forms a straight axis. So bending takes PLACE.



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