Machine Design
Set screws are

Used to prevent relative motion between parts
Slotted for a screw driver and generally used with a nut
Similar to stud
Similar to small size tap bolts except that a greater variety of shapes of heads are available

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Machine Design
The shear stress at a point in a shaft subjected to a torque is

Directly proportional to the applied torque and the polar moment of inertia
Directly proportional to the polar moment of inertia and to the distance of the point from the axis
Inversely proportional to the applied torque and the polar moment of inertia
Directly proportional to the applied torque and inversely proportional to the polar moment of inertia

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Machine Design
Turn buckle has

Left hand threads on one end and right hand threads on other end
Right hand threads on bout ends
Left hand threads on both ends
No threads

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