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1. |
A multiple-threaded screw has a pitch of screw 4mm and if the screw is made to 5 revolutions the screw will advances to 40 mm. What type of screw is it? |
A. | Single-threaded screw |
B. | Double threaded screw |
C. | Triple-threaded screw |
D. | Four –threaded screw |
Answer» C. Triple-threaded screw | |