21. Exhaust fan handles . . . . . . . . air.
22. Maximum velocities of ventilating air at man hoisting shafts and haulage roads . . . . . . . . other than conveyor roads.
23. Dust plan should be maintained in a scale of
24. Cooling chemical placed in cooling chamber of protomark IV apparatus is . . . . . . . .
25. The main purpose of seal at the floor level of fire stopping is
26. Hose mask permits more freedom of movement to the wear's head compared to . . . . . . . .
27. The pressure difference that would be produced by a mechanically perfect fan running under ideal conditions and connected to an evasee chimney of infinite height called . . . . . . . .
28. For how many years, the mining lease is given to a New company . . . . . . . .
29. Extraction of are from block formed during development.
30. The contra rotating fans can be coupled together in series for getting . . . . . . . .
Read More Section(Drilling and Blasting)
Each Section contains maximum 100 MCQs question on Drilling and Blasting. To get more questions visit other sections.
- Drilling and Blasting - Section 1
- Drilling and Blasting - Section 2
- Drilling and Blasting - Section 3
- Drilling and Blasting - Section 5
- Drilling and Blasting - Section 6
- Drilling and Blasting - Section 7
- Drilling and Blasting - Section 8
- Drilling and Blasting - Section 9
- Drilling and Blasting - Section 10