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Question
A bucket wheel excavator with 20 buckets of capacity 0.5 m3 each, rotates at 5 rev/min. The bucket
fill factor is 80%. The excavator loads on to 1200 mm wide belt conveyor. The cross-section area
(m2) of the material on the belt is 0.1B2, where B is the belt width in m. The minimum speed of the
belt in m/s to avoid spillage of material is
Options:
A .  7.23
B .  5.79
C .  4.63
D .  3.70
Answer: Option C


-NA-



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