Mechanical Engineering - Machine Design
Exercise : Machine Design - Section 9
41.
The relation between the pitch of the chain (p) and pitch circle diameter of the sprocket (D) is given by (where T = Number of teeth on the sprocket)
42.
The coefficient of friction between the belt and pulley depends upon the
43.
The allowable static stress for steel gears is approximately __________ of the ultimate tensile stress.
44.
The pitch diameter is the __________ diameter of an external or internal screw thread.
45.
When a hole of diameter 'd' is punched in a metal of thickness 't', then the force required to punch a hole is equal to (where τu = Ultimate shear strength of the material of the plate)
d.t.τu
πd.t.τu
x d2τu x d2 x tτuQuick links
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