4.1. Factors Affecting Productivity

Try these first

1. 1.

   Define cycle time in bulldozer operations.

   Hint

   Consider all phases of bulldozer operation.

2. 2.

   What is push time?

   Hint

   Think about the bulldozer's primary task.

3. 3.

   What does cycle time include?

   • Push Time Only
   • Push Time
   • Backtrack Time
   • and Maneuvering Time
   • Only Maneuvering Time

   Hint

   Think about the full operation cycle.

4. 4.

   True or False: Job efficiency only considers the ideal working conditions.

   • True
   • False

   Hint

   Consider what affects real-world operations.

5. 5.

   Calculate the overall estimated productivity in loose cubic meters per hour for a bulldozer with a blade load of 5m³, cycle time of 20 minutes, and job efficiency of 50%.

   Hint

   Make sure to convert time to the same units before calculation.

6. 6.

   If the initial estimated productivity for an ideal state is 90 cubic meters per hour, how would you adjust this for an operator with below-average skills and a challenging material type?

   Hint

   Remember that adjustments strengthen the perception of real-world productivity over ideal conditions.