16.Determine the torque received by the motor shaft running at 4250 rpm, transmitting 11 HP, through a10 in diameter, 200involute gear. The shaft is supported by the ball bearings at both ends and thegear is fixed at the shaft length. Answer: AA.163 in-lbB.132 in-lbC.167 in-lbD.138 in-lb
17.Compute the maximum unit shear in a 3 inches diameter steel shafting that transmits 24,000 in-lb oftorque at 99 rpm.
18.Compute the linear shaft diameter to transmits 12 Hp at 180 rpm with torsional deflection of 0.08degrees per foot length.
19.Compute the nominal shear stress at the surface in Mpa for a 40 mm diameter shaft that transmit 750Kw at 1500 rpm. Axial and bending loads are assumed negligible. Torsional shearing stress is 28N/mm2.
20.A hollow shaft has inner diameter of 0.035 m and outer diameter of 0.06 m. Compute for the torqueif the shear stress is not to exceed 120 Mpa in N-m. Answer: AA.4500B.4300C.4100D.4150
21.Design the size of solid steel shaft to be used for a 500 Hp, 250 rpm application if the allowabletorsional deflection is 10and the allowable stress is 10,000 psi and modulus of rigidity is 13 x 106psi.