Q. A power shovel is having 1.8 m3 excavation output per batch of operation. The average cycle time of the batch operation is 45 seconds. The lost time per hour of the excavation activity is 10 minutes. Assume six working hours of operation per day. The amount of soil excavated by the power shovel per day is m3 (rounded off to two decimal places).
- 720
- 360
- 180
- 270
Ans: 720
Solution:
Effective operating time per day = 50 × 6 = 300 min
Volume of soil excavated =
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