1. Which of the following not considered under unsupported class of underground mineral exploitation method.
2. The optimum length diameter ratio used in VCR mining is . . . . . . . .
3. Decline is a secondary inclined opening driven upwards to connect levels.
4. The draw point spacing in caving, the method is dependent on . . . . . . . .
5. The raising methods are . . . . . . . .
6. Salting means . . . . . . . .
7. Minimum number of outlets in lamp room is . . . . . . . .
8. Where a zone is treated with water, the samples shall be collected by . . . . . . . .
9. In this method of work, needs the following type of support, i.e. the stope area unsupported.
10. The maximum length: diameter ratio used in VCR mining is . . . . . . . .
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