4.2. Importance of Economic Evaluation

Try these first

1. 1.

   What is the balance number of trucks if the truck cycle time is 39.5 and the loader cycle time is 5.5?

   Hint

   Use the formula: Balance Number = Truck Cycle Time / Loader Cycle Time.

2. 2.

   If you have 6 trucks with a productivity of 12.53-meter cubes per hour, what is the total productivity?

   Hint

   Multiply the number of trucks by individual truck productivity.

3. 3.

   What determines the balance number of trucks needed?

   • Truck costs
   • Loader cycle time
   • Truck cycle time

   Hint

   Review the formula for balance number.

4. 4.

   True or False: Increasing the number of trucks beyond the balance number increases productivity without limit.

   • True
   • False

   Hint

   Consider how loader productivity caps overall output.

5. 5.

   If your current operation uses 7 trucks but proposes to use 10 for a new project, analyze the potential productivity and cost outcomes. What would you recommend?

   Hint

   Calculate using the productivity limits of the loader.

6. 6.

   Calculate the overall production cost for using 6 trucks over 24 hours, assuming the productivity remains consistent. Given that each truck costs 1650 rupees/hour, compute the cost-effectiveness.

   Hint

   Remember to factor in continuous usage and total output.