1. The wattage of bulb in a cluster of each bulb A. 100W B. 80W C. 60W D. 40W 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
2. The required water for 1 ton of sand in hydraulic sand stowing is . . . . . . . . A. 800 l B. 600 l C. 1100 l D. 1200 l 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
3. The purpose of pilot hole in stable pit drivage A. Blasting B. Supporting C. Mucking D. Ventilation 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
4. Scaffold not required in . . . . . . . . tubbing A. Over hung tubby B. Under hung C. Brick D. Concrete 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
5. Bord and pillar method applied when a seam is A. Out croping B. Shallovdeth C. Greater D. Moderate depth 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
6. The following method practiced in NECL (Assam) for extraction of steep thick seam. A. B.G B. Sublevel caving C. Bhaska and Tipping D. Longwal 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
7. Transportation of filled material with water to the worked out areas for filling called . . . . . . . . A. Mechanical stowing B. Pneumatic stowing C. Hydraulic stowing D. Sinelting 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. In double tube core barrel which tube is non rotating A. Outer tube B. Middle tube C. Inner tube D. All 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
9. The face or working place which is parallel to main cleat is called . . . . . . . . A. On end B. End cleat C. Bord cleat D. Wall 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
10. With 3 or 4 stooks under extraction at a time, the total area should not exceed . . . . . . . . m2 A. 900 B. 800 C. 400 D. 100 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