# A 16 ft lineshaft has no bending action except its

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Chapter 6 / Exercise 71
Intermediate Algebra
Tussy/Gustafson
Expert Verified
12.A 16 ft lineshaft has no bending action except its own weight. What power in HP can the shaftdeliver at a speed of 200 rpm. Consider that the torsional deflection will not exceed 0.08/ft length..Answer: DA.13.2B.15.8C.24.4D.14.6
13.The torsional deflection of a SAE 1040 steel shaft is 0.80in a length of ½ m. The shear stress is 69Mpa. Compute the diameter of the shaft in millimeter. Steel modulus of elasticity is 79,300 Mpa orN/mm2.
14.Compute the diameter of a solid shaft transmitting 75 Hp at 1800 rpm. The nature of the load and thetype of service is such that the allowable SSbased on pure torsion is 6000 psi..
15.The shaft is subjected to a steady load of 36,000 lbs at a shear stress of 10,000 psi. Compute thediameter of the said shaft in inches.
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Chapter 6 / Exercise 71
Intermediate Algebra
Tussy/Gustafson
Expert Verified
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.
22.A 2-in solid shaft is driven by a 36-in, gear and transmit power at 120 rpm. If the allowable shearingstress is 12 ksi, what horsepower can be transmitted?
23.A short 61 mm diameter shaft transmits 120 Hp. Compute the linear speed of a pulley 55 cmdiameter mounted on the shaft.