41. Which of the indigenous firm do manufacture SDL& LHD in India?
42. The mass of a rope depends upon the . . . . . . . . of steel.
43. Which of the following can be used safely right upto the face of coal mine
44. In coned socket type capel the metal poured is . . . . . . . .
45. Which metal is used for the purpose of capping of winding ropes?
46. Ropes used for drag line.
47. The wire rope which offers better wearing surface and more resistant to bending fatigue called . . . . . . . .
48. For AFC open-bottom pans are preferable to closed-bottom pans because
49. Preshaping the wires and strands in to exact helical positions, they assumed in the finished shape called . . . . . . . .
50. The ropes used for winding; haulage, coal cutting are the examples of . . . . . . . .
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