The solid circular steel shaft of a screwdriver is subjected to a pure torque of T = 15 lb·in. The shaft has a diameter of 0.240 in. and a length of L = 4.00 in. The shear modulus of the steel is G = 11,500 ksi. Determine the magnitude of the angle of twist of the shaft in degrees.

The solid circular steel shaft of a screwdriver is subjected to a pure torque of T = 23 lb·in. The shaft has a diameter of 0.222 in. and a length of L = 4.50 in. The shear modulus of the steel is G = 11,300 ksi. Determine the magnitude of the angle of twist of the shaft in degrees.

A solid constant-diameter shaft is subjected to the torques shown. Determine the absolute value of the internal torque in segment (2) of the shaft. Assume that TA = 12.3 N·m, TB = 39.4 N·m, TC = 24.1 N·m, TD = 33.4 N·m, and TE = 36.4 N·m.

A steel [E = 30,200 ksi, G = 11,600 ksi] socket extension (2) has a diameter of 0.32 in. and a length of L = 2.0 in. It connects socket (3) to ratchet handle (1) which is 5.2 in. long. If a perpendicular force of 8.0 lb is applied to the end of the ratchet handle, determine the maximum shear stress in the socket extension.

A baby-swing motor provides 0.28 W at 5,700 rpm to a shaft that has a diameter of 2.42 mm and a length of 12.3 mm. Determine the maximum shear stress in the shaft.

A dump truck axle with a diameter of 1.683 in. and a length of 38.0 in. failed when the shear stress reached 90 ksi on the outer surface. The shear modulus of the steel is G = 11,800 ksi. Assuming the shaft did not yield prior to failure, determine the angle of twist of the axle when it failed.

A load of P = 9 N is applied to a hex wrench that has lengths a = 24 mm and b = 86 mm. Determine the torque applied to the set screw.

A steel [E = 30,300 ksi, G = 11,700 ksi] socket extension (2) has a diameter of 0.48 in. and a length of L = 5.0 in. It connects socket (3) to ratchet handle (1), which is 6.8 in. long. If a perpendicular force of 11 lb is applied to the end of the ratchet handle, determine the socket extension’s angle of twist.

A dump truck axle with a diameter of 1.755 in. and a length of 37.6 in. failed when the shear stress reached 89 ksi on the outer surface. The shear modulus of the steel is G = 11,600 ksi. Assuming the shaft did not yield prior to failure, determine the angle of twist of the axle when it failed.

The solid circular steel shaft of a screwdriver is subjected to a pure torque of T = 22 lb·in. The shaft has a diameter of 0.248 in. and a length of L = 4.50 in. The shear modulus of the steel is G = 11,200 ksi. Determine the magnitude of the angle of twist of the shaft in degrees.