4. Summary of Bulldozer Operations

Try these first

1. 1.

   What is the ideal soil density for the bulldozer productivity curve?

   Hint

   Refer to the initial conditions discussed in class.

2. 2.

   Name one correction factor that affects bulldozer productivity.

   Hint

   We discussed multiple factors earlier in class.

3. 3.

   What is a correction factor?

   • A factor used in mathematical equations
   • A number that adapts productivity estimates for real conditions
   • An unrelated metric

   Hint

   Think about how we adapt our estimates.

4. 4.

   Correctly adjusting productivity for soil density decreases it.

   • True
   • False

   Hint

   Link your understanding back to soil conditions.

5. 5.

   Estimate the hourly productivity if the original expectation is 120 m³/hour, but correction factors for soil density (0.85), poor visibility (0.75) and operator skill (0.70) have to be applied.

   Hint

   Multiply each correction factor by the initial productivity.

6. 6.

   If a bulldozer's operational cost is 1600 rupees per hour, with a productivity of 40 bank m³/hour, calculate the unit cost per bank m³.

   Hint

   This is a basic division of costs by productivity.