Answer / kanhaikumar

it provides less torsonal
stresses

Answer / suresh

less weight
more heat transfer from its hollow surface during running
condition when compare to solid shaft
less cost
easy machinability

Answer / parth

Hollow shafts are cheaper than solid and having more flexibility and light weight in compared to solid shaft

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in engine when the engine stops are the pistons were stopped in between or they complete the process.

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