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1. |
A multiple-threaded screw is designed in such a way for one complete rotation of screw advances to a distance of 5 times the pitch of the screw. If need to make the lead only up to 3 times of the pitch of screw then how many angles should we rotate the screw? |
A. | 214 degrees |
B. | 216 degrees |
C. | 120 degrees |
D. | 72 degrees |
Answer» C. 120 degrees | |