4.2. Summary of Loading Methods

Try these first

1. 1.

   What is back-track loading?

   Hint

   Think about the word backtrack!

2. 2.

   Which method is best for narrow, long cuts?

   Hint

   Consider methods designed for efficiency!

3. 3.

   What is back-track loading?

   • A fast loading method
   • A slow loading method
   • A rarely used method

   Hint

   Think about why it might be slower than others.

4. 4.

   Chain loading is best suited for what type of construction?

   • True
   • False

   Hint

   Consider efficiency in layout!

5. 5.

   In a project using back-track loading, the loading time is 2 minutes per scraper, and two scrapers are needed. Calculate the total time taken if the pusher's return time is also 2 minutes. Discuss potential strategies to improve efficiency.

   Hint

   Focus on both loading and return times!

6. 6.

   A construction manager wants to employ shuttle loading on a new site with scrapers moving in both directions. If each scraper costs $100/hour to run, calculate the expected savings in labor costs by reducing wait time by 50% using the shuttle method over ten hours compared to back-track.

   Hint

   Think about how time translates to cost!