1. Which of the following prime characteristic the nonel blasting has? A. It has greater shock to the surrounding B. It is noiseless in character C. It has tremendous effect on explosive column D. It can not be used in a place where there is a chance of stray current Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option B No explanation is given for this question Let's Discuss on Board
2. The main purpose of self rescuer is to enable the wearer to escape through an atmosphere resulting after a . . . . . . . . or after an . . . . . . . . in a mine. A. Five, Explosion B. Gas, Outburt C. Rockburst, bump D. None Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option A No explanation is given for this question Let's Discuss on Board
3. Cyclone, bag filter and scrubber can be used for control. A. Water pollution B. Soil pollution C. Air pollution D. Noise pollution Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option C No explanation is given for this question Let's Discuss on Board
4. A two phase system in which an inner or dispersed phase is distributed in an outer called A. Emulsion B. Slurry C. Explosion D. Erosion Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option A No explanation is given for this question Let's Discuss on Board
5. The secondary barrier also called A. Heavy B. Light C. Primary D. None Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option A No explanation is given for this question Let's Discuss on Board
6. The dust generally not used for spraying in coal faces. A. Shale B. Lime stone C. Gypsum D. Quartz Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option D No explanation is given for this question Let's Discuss on Board
7. The tubs capacity in direct rope haulage varying from when pedestal bearing are used. A. 0.2 - 0.3m3 B. 0.4 - 0.7m3 C. 0.8 - 1.1m3 D. 1.2 - 1.5m3 Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option C No explanation is given for this question Let's Discuss on Board
8. No percentage of firedamp is explosive, when the percentage of oxygen is . . . . . . . . or less as per coward diagram. A. 6 B. 12 C. 18 D. 20 Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option B No explanation is given for this question Let's Discuss on Board
9. Wedge cut pattern commonly used for . . . . . . . . A. Thickly bedded rocks B. Soft C. Cleavage D. Springly plastic rocks Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option A No explanation is given for this question Let's Discuss on Board
10. ANFO initiated by No. 8 detonator, in non mining practice. A. Yes B. No C. Some extent not true D. None Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option A No explanation is given for this question Let's Discuss on Board