1. Productivity of Shovel

Try these first

1. 1.

   What is the ideal angle for truck placement in relation to the shovel?

   Hint

   Think about reducing cycle time.

2. 2.

   Why is it important to have clearance for the tail swing of a shovel?

   Hint

   Consider how shovel moves.

3. 3.

   What is the ideal angle of swing for minimizing productivity loss?

   • 45 degrees
   • 90 degrees
   • 120 degrees

   Hint

   Think about how swing angles impact cyclical operations.

4. 4.

   True or False: An increased swing angle can decrease cycle time.

   • True
   • False

   Hint

   Remember the relationship between swing and cycle times.

5. 5.

   If a shovel has an average cycle time of 30 seconds and the truck is positioned at 120 degrees, how would you estimate the increase in cycle time? Calculate using an assumed factor for swing angles over 90 degrees.

   Hint

   Review the swing angle impacts discussed earlier.

6. 6.

   A project requires you to optimize a shovel’s productivity running on a 6-hour shift. If the shovel operates efficiently for only 75% of that time, calculate the effective productive time. Include factors affecting operational time, like wait times for trucks and equipment adjustments.

   Hint

   Account for the job efficiency discussed in class.