Design Engineer Question:

Screws jacks have multiple threads.

A. Agree
B. Disagree

Option B

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When two non-intersecting and non-coplaner shafts are connected by gears, the arrangement is known as A. spur gearing B. helical gearing C. bevel gearing D. spiral gearing	In a gear, having involute teeth, the normal to the involute is a tangent to the A. pitch circle B. base circle C. addendum circle D. dedendum circle