Question

Which of the following expression stands true for the WME (mechanization index)?
- LM = Average sum of the total work done by Tractor machine.
- LT = Average sum of the total work done by Human + Average sum of the total work done by Tractor machine.

• A. WME = LM $\times$ LT
• B. WME = $\dfrac{LM}{LT}$ $\times$ 100
• C. WME = $\dfrac{LM}{LT}$
• D. WME = LM / LT

Hint:

The mechanization index (WME) is a ratio of work done by machines to human work, expressed as a percentage.

Answer 1

The Correct Option is B

Step 1: Understanding the terms.
- LM = Average sum of the total work done by Tractor machine. - LT = Average sum of the total work done by Human + Average sum of the total work done by Tractor machine.
Step 2: Explanation.
The correct expression for the mechanization index (WME) is: \[ \text{WME} = \frac{LM}{LT} \times 100 \]
Step 3: Conclusion.
Thus, the correct formula is option 2.
Final Answer: \[ \boxed{2. \, \text{WME} = \frac{LM}{LT} \times 100} \]