31. Air lock doors are required to be arranged where pressureon the door is
32. A part of mine below ground has as an indipendent intake air way commencing from a main intake air way, and an indipendent return terminating at main return air way called . . . . . . . .
33. Blasting off the solid was known as . . . . . . . .
34. Which of the following cut gives greater advance per round of blasting in tunnels or drifts of small area?
35. This is not a function of thermal emmissivity.
36. It is the ratio of the head at the operating point to Euler's head at zero capacity called . . . . . . . .
37. Vertical distance between two adjacent main levels, main horizone (or) main drives.
38. The time interval lapses between application of a source of ignition to fire damp and the actual moment of ignition of gas called . . . . . . . .
39. Soda acid extinguishers suitable only for quency.
40. Singareni coal field has become a government company in . . . . . . . .
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 8
- Drilling and Blasting - Section 9
- Drilling and Blasting - Section 10