41. The gas which settle at floor level below the fire stopping is
42. Weight of air leg mounted on jack hammer.
43. Which of the activities should be borne in mind, for any mining activity.
44. Explosions of coal dust alone (in the absence of firedamp) have been comparatively . . . . . . . .
45. The axial flow fan blades are set on to the plane of . . . . . . . .
46. The methods employed to deal with fires are
47. Dint header suitable for height of roadway not more than . . . . . . . .
48. If CO/O2 deficiency ratio is 1% it indicates existence of . . . . . . . .
49. Rescue brigate consists of . . . . . . . . members including leader.
50. Ventilation door must be arranged to close automatically and with this object frame of the door is so fitted that the top leans about forward in the direction of air pressure.
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 6
- Drilling and Blasting - Section 7
- Drilling and Blasting - Section 8
- Drilling and Blasting - Section 9
- Drilling and Blasting - Section 10