Machine Design
The velocity of sliding __________ the distance of the point of contact from the pitch point.

Does not depend upon
Is equal to cos φ multiplied by
Is directly proportional to
Is inversely proportional to

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Machine Design
The flank of the tooth is the

Width of the tooth measured along the pitch circle
Surface of the top of the tooth
Surface of the tooth above the pitch surface
Surface of the tooth below the pitch surface

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Machine Design
Jam nut is a locking device in which

Through slots are made at top and a cotter pin is passed through these and a hole in the bolt, and cotter spitted and bent in reverse direction at other end
A slot is cut partly in middle of nut and then slot reduced by tightening a screw
One smaller nut is tightened over main nut and main nut tightened against smaller one by loosening, creating friction jamming
A hard fibre or nylon cotter is recessed in the nut and becomes threaded as the nut is screwed on the bolt causing a tight grip

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