31. For how many years the winding rope has to be used?
32. The Gathering head in gathering arm leader is elevated by . . . . . . . .
33. Steel rigid guides are installed in some . . . . . . . . mines.
34. The wires spiral round the core in the same direction as the threads of right hand screw called . . . . . . . .
35. In main and tail, needs two separate drums one for . . . . . . . . other for . . . . . . . .
36. One of the rope haulage is . . . . . . . .
37. The transport arrangement, which operates between main incline/shaft and the main under ground loading point called . . . . . . . .
38. Which pump must never be started without priming with water as it does not create a vacuum of more than a few centimeters when working on air.
39. The detaching hook always placed just below the rope . . . . . . . .
40. The sulphur percentage in wire ropes . . . . . . . .
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