11. The method of stoping for narrow and steeply dipping ore with any type of ore and wall is . . . . . . . .
12. Vertical members of a square set is known as post where as horizontal members known as cap and grit.
13. In order for mining of minerals to be substainable we will need to . . . . . . . .
14. Which of the following method may be approaching obsolenscence and proved to be the most expensive of all mining method.
15. A vertical method similar to stope and pillar mining in the supported class is known as . . . . . . . .
16. Ladder ways are used for men, what is the extended length of ladder above the maith.
17. A place where are can be loaded and removed.
18. If the strength of the roof is weak, unsupported, ore is massive and steep, the method employed is . . . . . . . .
19. Out of the two systems of leaching, if one is chemical, the other one is . . . . . . . .
20. Cut and fill stoping follows.
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