HKIE Professional Assessment - Mechanical Discipline Practice Questions - HKIE Professional Assessment - Mechanical Discipline (Hong Kong Institution Of Engineers) Exam

What is the polar moment of inertia (J) for a solid circular shaft of diameter d?

J = (π × d⁴) / 32 J = (π × d⁴) / 64 J = (π × d³) / 16 J = (π × d⁴) / 12

Correct Answer:

J = (π × d⁴) / 32

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