11. The cores used in a wire rope are . . . . . . . .
12. The guides are fixed by counter sunk bolts to the buttons placed across the shafts at intervals of . . . . . . . .
13. Number of cage chains in case of single cage . . . . . . . .
14. The clip which is tightened on the rope by handle and screw, the handless coupled to draw bar of the tub by long steel rod hinged to top called . . . . . . . .
15. The output power of the motor which has two poles in coal drill is . . . . . . . .
16. In dragline (24/96), the power source is . . . . . . . .
17. The wear resistance of the rope increased by using . . . . . . . .
18. Regular lay also called as . . . . . . . .
19. The number of drums provided in double drum balanced haulage . . . . . . . .
20. What type of ventilation is recommended for SDL/LHD.
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