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4 cards from this section. Quick, good the night before a test.
What is the formula for calculating job efficiency?
Think about how much time a machine actually operates versus the total time it could operate.
Define a correction factor.
Consider what adjustments we need to make for different operational conditions.
What is the correction factor if a bulldozer's productivity is estimated to be reduced due to operator skill?
Consider how skill affects efficiency.
True or False: Higher soil density always increases the productivity of earthmoving equipment.
Think about the physical challenges of moving denser soil.
A bulldozer's production rate is calculated to be 114.68 loose cubic meters per hour under ideal conditions. If the job efficiency reduces to 50 minutes, and various correction factors apply, what is the new productivity rate?
Consider both job efficiency and material type adjustment factors.
You have a bulldozer that operates efficiently at a soil density of 1365 kg/m³. If it encounters 2000 kg/m³, determine the impact on productivity and the necessary adjustments in productivity calculations.
Look at the ratio between the ideal density and the actual density.
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