1.5. Economics Analysis

Try these first

1. 1.

   Calculate the balance number of trucks given truck cycle time is 39.5 seconds and loader cycle time is 5.5 seconds.

   Hint

   Divide the truck cycle time by the loader cycle time.

2. 2.

   If you have 6 trucks, with each having a productivity of 12.53 m³/h, what is the total productivity?

   Hint

   Multiply the number of trucks by the individual truck productivity.

3. 3.

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

   • 5
   • 7.18
   • 9

   Hint

   Perform the division correctly.

4. 4.

   True or False: The productivity increases indefinitely with more trucks.

   • True
   • False

   Hint

   Consider the limits imposed by machinery.

5. 5.

   Given a loader's productivity is capped at 90 m³/hr and a truck's cycle time is not constant, determine how fluctuating cycle times affect overall efficiency. Analyze the shift in unit production costs as the truck cycle time varies.

   Hint

   Factor in how cycle variances can create lags in productivity.

6. 6.

   If the loader efficiency increases and can handle 100 m³/hr while all trucks maintain a productivity of 12.53 m³/hr, calculate the minimum number of trucks required to optimize costs while considering economic analysis principles.

   Hint

   Remember to reassess loader productivity against truck output.