Which of the following type of support is to be used for the gallery run by LHD.
A. Timber props
B. Wooden cogs
C. Hydraulic props
D. Full grouted roof bolting
Answer: Option D
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
C. Independent wire rope
D. All
The joining of ropes is termed as . . . . . . . .
A. Rope stitching
B. Rope splicing
C. Rope Stretching
D. Rope volcanizing
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