Two shafts ‘A’ and ‘B’ under pure torsion are of identical length and identical weight and are made of the same material. The shaft ‘A’ is solid and the shaft ‘B’ is hollow. We can say that

A. Co-axial B. Perpendicular C. Parallel D. None of these

A. Directly as load B. Inversely as square of load C. Inversely as cube of load D. Inversely as fourth power of load

A. Zero at the centroidal axis B. Zero at the point other than centroidal axis C. Maximum at the neutral axis D. None of these

A. Margin B. Pitch C. Back pitch D. Diagonal pitch