Question

What is the mechanical advantage of the screw shown below?2.1 mm1.3 mm

Answer 1

We have the following:

The mechanical advantage is obtained by dividing the circumference of the shaft by the pitch of the screw.

`\begin{gathered} c=2\pi r \\ c=2\cdot3.14\cdot2.1=13.19 \end{gathered}`

now, let ma mechanical advantage

`\begin{gathered} ma=(13.19)/(1.3) \\ ma=10.1 \end{gathered}`

Therefore, the answer is B. 10.1