31. At 273.15K (°C) enthalpy of air will be
32. Minimum thickness of ventilation stopping is . . . . . . . .
33. Where a pair of taudem cages (accommodating 2 tubs) the finished diameter of shaft may be . . . . . . . .
34. The size of pillar increases with . . . . . . . .
35. Door should be open against the air so that air pressurenormally kept closed.
36. Fine dust of coal defined by its content of . . . . . . . . fraction particles.
37. The weight of 2 hr. duration drager apparatus of BG 174 is . . . . . . . . in kg.
38. Mochia mine is located in . . . . . . . .
39. To determine the velocity of air . . . . . . . . is essential inconjunction with anemometer.
40. Note worthy example in Bullen's incline the length of crossmeasure drift is . . . . . . . . long.
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 4
- Drilling and Blasting - Section 5
- Drilling and Blasting - Section 6
- Drilling and Blasting - Section 7
- Drilling and Blasting - Section 8
- Drilling and Blasting - Section 10