Question

Efficiency of a machine can also be written as

• A. $\frac{\text{velocity ratio}}{\text{mechanical advantage}}\times 100$ %
• B. $\frac{\text{mechanical advantage}}{\text{velocity ratio}}\times 100$ %
• C. $\frac{\text{mechanical advantage}}{\text{velocity of the gear}}\times 100$ %
• D. None of the above

Answer 1

Answer: (B)

$\frac{\text{mechanical advantage}}{\text{velocity ratio}}\times 100$ %

$effiency=\eta =\frac{Machanical-advantage}{velocity-ratio}\ast 100$