4.1. Balancing Trucks and Excavators

Try these first

1. 1.

   What is the formula for calculating loading time?

   Hint

   Think about how we measure time in operations.

2. 2.

   Define gravimetric capacity.

   Hint

   What does the manufacturer specify?

3. 3.

   What is the maximum percentage of additional weight a machine can carry based on its gravimetric capacity?

   • 10%
   • 25%
   • 0%

   Hint

   Remember, exceeding capacity can damage machinery.

4. 4.

   True or False: The average dump time is the same for all materials regardless of their type.

   • True
   • False

   Hint

   Consider how different materials behave.

5. 5.

   If a truck transports 10.3 m³ of material and a loader bucket has a capacity of 2.2 m³ with a fill factor of 90%, how many truckloads are equivalent to a bucket full?

   Hint

   Use the formula wisely and don’t forget the fill factor.

6. 6.

   Given a situation where you can either choose 7 or 8 trucks for an excavator. If the balance number is calculated as 7.4, which does an economic analysis suggest is better?

   Hint

   Analyze costs and potential idle times.