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Architecture and Planning Miscellaneous-topic

Architecture and Planning Miscellaneous

  1. A power shovel is having 1.8 m2 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 of to one decimal place).
    1. 720
    2. 360
    3. 180
    4. 270
Correct Option: A

Considering 10 min loss per hour,
Effective operating time per day = 50 × 6 = 300 min

Volume of soil excavated =
(300 × 60 × 1.8)
= 720 cum
45



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