GATE Mechanical Engineering (ME) 2015 Shift 2 Solved Paper

Question : 48 of 65

Marks: +1, -0

A hollow shaft d_o = 2d_i where d_o and d_i are the outer and inner diameters respectively needs to transmit 20kW power at 3000 RPM. If the maximum permissible shear stress is 30 MPa, d_O is