Question

The input torque on the shaft is 200 pound-feet and the output torque is 760 pound-feet. What’s the torque ratio? A. 3:1 B. 4:1 C. 3.8:1 D. 3.3:1

Answer 1

torque ratio is the ratio of its output torque to its input torque.
760/200=3.8
So the answer is C 3.8:1

Answer 2

Answer: C.
`3.8:1`

Explanation:

We know that the torque ratio is the ratio of its output torque to its input torque.

Given : Input torque :
`\tau_i=200\text{ pound-feet}`

Output torque :
`\tau_o=760\text{ pound-feet}`

Then , the torque ratio is given by :-

`\frac{{\tau_o}}{{\tau_i}}\\\\\\=(760)/(200)=(3.8)/(1)`

Therefore, the torque ratio = 3.8 :1