Question

1) A 4" long key has a 0.5" wide by 0.75" high cross-section. if the torque on the 2.4" diameter shaft is 1,200 in lb, the shear stress on the key is?

2) A rigid coupling with 6 bolts 1/2" in diameter. the diameter of the path circle of the bolts is 10" if the torque transmitted is 24,000 in lb the shear stress on the bolts is?

3) For a shaft that is transmitting 1,120.000 N.mm, while turning 1,200 RPM, the power transmitted is?

140.7KW, 150.3 KW, 212.2 KW, 163.1 KW

4) For a shaft under torque the only type of deformation that will result is the rotation of the cross-section with respect to each other TRUE OR FALSE?

Answer 1