A dragline is required to remove 3,00,000 m3 of rock per month on the bank volume basis. Consider the following data for the dragline operation.
Effective working hours per month = 450
Bucket fill factor = 0.8
Cycle time = 65 s
Swell factor of the rock = 1.25
The minimum bucket capacity of the dragline in m3 is
A. 7.70
B. 9.63
C. 12.04
D. 18.80
Answer: Option D
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