1.1. Fixed Time and Variable Time

Try these first

1. 1.

   What is cycle time in bulldozer operations?

   Hint

   Think about the total time needed for bulldozer operations!

2. 2.

   Name a component of fixed time in bulldozer operations.

   Hint

   What does the operator do that takes a constant amount of time?

3. 3.

   What does fixed time in bulldozer operations primarily account for?

   • Push time
   • Backtrack time
   • Maneuvering adjustments

   Hint

   Think about what doesn't change with different haul distances.

4. 4.

   True or False: Variable time is consistent regardless of conditions.

   • True
   • False

   Hint

   Consider how different conditions might affect task duration.

5. 5.

   Design a productivity estimation for a bulldozer that works 45 minutes in an hour, with a haul distance of 30 meters, knowing it operates at 4 meters/second.

   Hint

   Break down the problem into calculating each time component.

6. 6.

   Propose a method to analyze the effect of terrain changes on the bulldozer's overall productivity over a project.

   Hint

   Consider how changes in terrain will affect both speed and resistance!