Q268
March the following: Mining Method Operation a. Bord and Pillar 1. Long hole radial drilling b. Sublevel caving 2. Splitting and Slicing c. Longwall retreating 3. Loosening under strata pressure d. Integrated Caving 4. Mechanical cutting
March the following:
| Mining Method | Operation |
| a. Bord and Pillar | 1. Long hole radial drilling |
| b. Sublevel caving | 2. Splitting and Slicing |
| c. Longwall retreating | 3. Loosening under strata pressure |
| d. Integrated Caving | 4. Mechanical cutting |
A.
a-1, b-4, c-3, d-2
B.
a-2, b-3, c-1, d-4
C.
a-4, b-2, c-3, d-1
D.
a-2, b-1, c-4, d-3
AnswerAnswer: Option D
Solution
Answer: Option D
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