1.1. Components of Cycle Time

Try these first

1. 1.

   What is cycle time?

   Hint

   Think about how long it takes to load, haul, dump, and return.

2. 2.

   Name two components of cycle time.

   Hint

   Think about the different activities involved in operating a scraper.

3. 3.

   What is included in the cycle time of a scraper?

   • Load Time
   • Transfer Time
   • Dump Time
   • All of the above

   Hint

   Look at the definitions we've discussed.

4. 4.

   True or False: Fixed time includes haul and return time.

   • True
   • False

   Hint

   Think about what happens when you change travel distances.

5. 5.

   Given the following cycle times for a project site: Load Time = 0.7 min, Haul Time = 3.0 min, Dump Time = 1.2 min, Return Time = 2.0 min. Calculate the total cycle time. What strategies could be implemented to reduce this time?

   Hint

   Make sure to account for all sections of the time in your calculation.

6. 6.

   How would the cycle time change if the haul distance is doubled with all other factors remaining the same? Provide a specific example with calculations.

   Hint

   Consider how specific distances impact haul travel time.