The efficiency of a square threaded screw is maximum if the helix angle is equal to
(Where $$\varphi $$ = Angle of friction)
A. $${90^ \circ } - \varphi $$
B. $${45^ \circ } - \varphi $$
C. $${45^ \circ } - \frac{\varphi }{2}$$
D. $${45^ \circ } + \frac{\varphi }{2}$$
Answer: Option C
This Question Belongs to Mechanical Engineering >> Machine Design
Join The Discussion