11. Higher limit of inflammability of coal dust for bituminous coal is . . . . . . . .
12. When adopting any of the methods of artificial respiration . . . . . . . . factor is very important.
13. Catalysist which changes CO to
14. The operating life of chemical and breathing apparatus AUER/SAR - 30.
15. It is a sudden combustion process of great intensity accompanied by release of large quantities of heat energy and in which original gas or solid substance converted instantaniously in to gasious products . . . . . . . .
16. A mixture of maganese dioxide and copper oxide called
17. Dipping connection in the are body joining two levels in metal mine.
18. The ventilation of drives exceeding 50 m length to be such as to dilute the nitrous fumes produced by blasting to . . . . . . . . and CO to . . . . . . . . within a period of . . . . . . . . min in long tunnel.
19. Prilled ammonium Nitrate of fertilizer grade mixed with diesel oil is used for . . . . . . . . in quarries.
20. A branch of air current taken from main air current called . . . . . . .
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