1.2. Limitations of Back-Track Loading

Try these first

1. 1.

   What is back-track loading?

   Hint

   Focus on the return mechanism of the pusher.

2. 2.

   Why is back-track loading considered slow?

   Hint

   Think about the travelling distance the pusher covers.

3. 3.

   Why is back-track loading considered the slowest method?

   • It requires more scrapers
   • It involves return trips
   • Pusher has to operate alone

   Hint

   Focus on the return travel time impact.

4. 4.

   True or False: Chain loading and shuttle loading are commonly used.

   • True
   • False

   Hint

   Think about the rates of efficiency.

5. 5.

   A project requires a quick turnaround time. Discuss why back-track loading may not be suitable and recommend an alternative.

   Hint

   Think about the impact of time on overall project success.

6. 6.

   Calculate the cycle time of a pusher using the formula Tp = 1.4Lt + 0.25, if the loading time (Lt) is 5 minutes.

   Hint

   Substitute values into the formula and apply arithmetic.