4.2. Determining Balanced Number of Trucks

Try these first

1. 1.

   Define gravimetric capacity.

   Hint

   What does the manufacturer specify?

2. 2.

   How is loading time calculated?

   Hint

   Think about the timing of loading activity.

3. 3.

   What does gravimetric capacity refer to?

   • A measure of speed
   • The maximum safe load
   • The cycle time of equipment

   Hint

   What does the manufacturer state about the machine?

4. 4.

   True or False: It is safe to overload machines beyond their gravimetric capacity.

   • True
   • False

   Hint

   Consider the consequences of exceeding limits.

5. 5.

   You are managing a project with a loader that has a cycle time of 1.5 minutes and a truck with a 35-minute cycle time. If the truck capacity is 12m³, how many trucks would be balanced?

   Hint

   Work with the cycle time ratios.

6. 6.

   If the excavator can handle a dump of 15 tons, with a load of 8 tons per truck, how many truck loads can it process within a given time frame, assuming no waiting time?

   Hint

   Think about the limits versus machine capacity.