Walking drag line have a travelling speed of . . . . . . . .
A. 0.8 to 0.10 km/hr
B. 0.18 to 0.6 km/hr
C. 0.1 to 0.5 km/hr
D. 0.5 to 0.8 km/hr
Answer: Option B
This Question Belongs to Mining Engineering >> Opencast Mining
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