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Does the crank pin act as a which beam inside crankshaft?

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in Automotive Engine Design by (137k points)
Does the crank pin act as a which beam inside crankshaft?

(a) Simply supported

(b) Cantilever

(c) Overhanging

(d) Roller supported

The question was posed to me by my school teacher while I was bunking the class.

Question is taken from IC Engine in section Design of IC Engine Components of Automotive Engine Design

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Correct choice is (b) Cantilever

For explanation I would say: The crankpin acts as a cantilever beam inside crankshaft and subjected to maximum bending moment on the crankshaft.

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