GTU BE/B.Tech 2018 Winter Question Papers || Gujarat Technological University
Subject Name: Mine Hazards
Time: 02:30 PM TO 05:00 PM
Date: 20/11/2018
Total Marks: 70
Subject Code: 2162204
GUJARAT TECHNOLOGICAL UNIVERSITY
--- Content provided by FirstRanker.com ---
BE - SEMESTER-VI (NEW) EXAMINATION - WINTER 2018Subject Name: Mine Hazards
Time: 02:30 PM TO 05:00 PM
Date: 20/11/2018
Total Marks: 70
--- Content provided by FirstRanker.com ---
Instructions:
- Attempt all questions.
- Make suitable assumptions wherever necessary.
- Figures to the right indicate full marks.
| Q.1 | (a) Explain how fire can produce in mines and its effect in mines. | 03 |
| (b) List out classes of fires and explain all in brief. | 04 | |
| (c) Explain causes and precautionary measures in mine inundations. | 07 | |
| Q.2 | (a) Discuss the applications of dust sampling apparatus. | 03 |
| (b) What do you mean by fire? Explain its causes and prevention in surface mines. | 04 | |
| (c) List out different types of rescue equipment used in mines. Explain any two with neat sketches. | 07 | |
| Q.3 | (a) OR Explain rescue and recovery work in connection with mine fire. | 07 |
| (b) Discuss the factor affecting the limit of explosibility in fire damp. | 03 | |
| (c) Discuss the different methods for reopening sealed off area in mines. | 04 | |
| Q.4 | (a) Explain spontaneous heating, its causes and detection in underground mines. | 07 |
| (b) OR Discuss the uses of fire extinguisher. | 03 | |
| (c) Describe the physical and chemical characteristics of coal liable to spontaneous heating. | 04 | |
| Q.5 | (a) Explain the reason behind underground fires and its preventive measures. | 07 |
| (b) Describe the function of rescue station. | 03 | |
| (c) Discuss the precautions to be taken while approaching old workings. | 04 | |
| Q.6 | (a) List out different types of fire extinguisher. Explain any one with neat sketch. | 07 |
| (b) OR Discuss the sources of initiation of fire damp explosion. | 03 | |
| (c) Describe causes-and safety measures in water gas explosion. | 04 | |
| Q.7 | (a) List out different types of dust sampling apparatus. Explain any one with neat sketch. | 07 |
| (b) Discuss the various effects of dust in underground mines. | 03 | |
| (c) Explain the water blast danger and its precautions. | 04 | |
| Q.8 | (a) Explain firefighting organization. | 07 |
| (b) OR Describe the problems of radiation in atomic mineral mines. | 03 | |
| (c) Discuss the causes and relative inflammability of coal dust explosion. | 04 | |
| Q.9 | (a) Explain the reason behind formation of dust in underground mines and their effect on employees. | 07 |
--- Content provided by FirstRanker.com ---
This download link is referred from the post: GTU BE/B.Tech 2018 Winter Question Papers || Gujarat Technological University
--- Content provided by FirstRanker.com ---