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A dump truck axle with a diameter of 1.60 in. and a length of 36 in. failed while transmitting a power of 530 hp and a torque of 5,430 lb-ft. At what speed was the axle spinning when it broke?

A load of P = 17 N is applied to a hex wrench that has lengths a = 33 mm and b = 119 mm. Determine the torque applied to the set screw.

A steel [E = 30,200 ksi, G = 11,600 ksi] socket extension (2) has a diameter of 0.49 in. and a length of L = 1.8 in. It connects socket (3) to ratchet handle (1) which is 7.1 in. long. If a perpendicular force of 20 lb is applied to the end of the ratchet handle, determine the maximum shear stress in the socket extension.

A gear train is composed of four gears, where gears A and B are on the same shaft. Gear A has 60 teeth, gear B has 36 teeth, gear C has 48 teeth, and gear D has 12 teeth. If a torque of 1.17 N·m is applied to gear A, determine the torque at gear D.

A steel [E = 30,200 ksi, G = 11,900 ksi] socket extension (2) has a diameter of 0.49 in. and a length of L = 5.0 in. It connects socket (3) to ratchet handle (1), which is 6.5 in. long. If a perpendicular force of 12 lb is applied to the end of the ratchet handle, determine the socket extension’s angle of twist.

A baby-swing motor provides 0.29 W at 5,700 rpm to a shaft that has a diameter of 2.06 mm and a length of 14.3 mm. Determine the maximum shear stress in the shaft.

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 = 23.2 N·m, TB = 31.0 N·m, TC = 19.7 N·m, TD = 39.2 N·m, and TE = 27.3 N·m.

The solid circular steel shaft of a screwdriver is subjected to a pure torque of T = 25 lb·in. The shaft has a diameter of 0.249 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 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 = 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.