. . . . . . . . of the circumferance of the rope is in contact with the groove of the head gear pulley.
A. $$\frac{1}{2}$$
B. $$\frac{1}{3}$$
C. $$\frac{1}{4}$$
D. $$\frac{1}{5}$$
Answer: Option B
This Question Belongs to Mining Engineering >> Mining Machinery
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