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


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