Question

Which of the statement is not true for an actual machine?

• A. Its mechanical advantage is less than the velocity ratio.
• B. Its efficiency is always less than 100%
• C. Its mechanical advantage is greater than the velocity ratio
• D. The output of the machine is always less than the input

Answer 1

The correct option is C

Its mechanical advantage is greater than the velocity ratio

Explanation

• The mechanical advantage of a machine is always less than its velocity ratio. It is because mechanical advantage decreases due to the friction and weight of moving parts of the machine, but the velocity ratio remains constant.

Hence the correct answer is Its mechanical advantage is greater than the velocity ratio