Given the following,
| Machine | Component |
| P. Dint header | 1. Cowl |
| Q. Coal plough | 2. Cutting chain |
| R. Road header | 3. Loading apron |
| S. Shearer | 4. Static set of bits |
A. P-4,Q-2, R-3, S-1
B. P-3, Q-4, R-2, S-1
C. P-2, Q-3, R-4, S-1
D. P-2, Q-4, R-3, S-1
Answer: Option D
This Question Belongs to Mining Engineering >> Introduction To Mining Engineering
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It is very difficult to control shaley roof if coal is not left with the shale why?
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