11. The drills used for high speed drivage of large size drifts and blasting gallery.
12. The slow moving rope haulage is . . . . . . . .
13. There is an opening at the centre of the impeller called . . . . . . . .
14. A wire rope, round stranded with fibre core has a dia meter of 2.54 cm, using the value of K is 0.36. Find the mass of the rope?
15. The king wire in the flattened strand rope is . . . . . . . . cross section.
16. The curve which shows how much magnitude of one quantity varies with the changes in some other related quantity called . . . . . . . .
17. In main and tail rope haulage the length of main rope is . . . . . . . .
18. Double drum rope haulage installation requires . . . . . . . . roads.
19. Pressure per unit area varies directly with . . . . . . . .
20. The direction of laying of wires, in the strand called . . . . . . . .
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