The steel body of the coal drill weights . . . . . . . .
A. 17.5 kgf
B. 23 kgf
C. 21.5 kgf
D. 24 kgf
Answer: Option C
This Question Belongs to Mining Engineering >> Mining Machinery
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Coal cutting machine ropes are . . . . . . . . wire rope core.
A. Fibre
B. Steel strand core
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D. All
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