Home/Coal Mining Legislation/Coal Mining Legislation – 13 Coal Mining Legislation Coal Mining Legislation – 13 Admin07/08/20240 18 Less than a minute Report a question What's wrong with this question? You cannot submit an empty report. Please add some details. 0% Coal Mining Legislation Coal Mining Legislation - 15 1 / 40 1. The explosive van shall have -------fire extinguishers Three Four Two None of the above Coal Mining Legislation 2 / 40 2. The Mines Manager shall countersign the sampling results entered in the register within 1 week 1 day 1 month Forthwith Coal Mining Legislation 3 / 40 3. Every vehicle used for the transport of explosives is inspected once in ------------ 48 hours. 12 hours. 24 hours. 8 hours. Coal Mining Legislation 4 / 40 4. Explosives to the site can be transported to the site as under. 30 minutes before commencement of charging. 60 minutes before commencement of charging. One day before commencement of charging Two hours before commencement of charging Coal Mining Legislation 5 / 40 5. When a water logged area is likely to be approached, the gallery height or width of any working shall not exceed ----- and there shall be maintained at least one bore-hole near the center of the working face. 2.0 meters 1.2 meters 2.4 meters 2.4 meters Coal Mining Legislation 6 / 40 6. The scale for the dust plan for an underground mine shall be not less than ------- 1.708333333 0.875 3.375 2.541666667 Coal Mining Legislation 7 / 40 7. A mining mate underground shall not perform duties of shot-firer if the number of persons working under him is more than____. 30 20 50 25 Coal Mining Legislation 8 / 40 8. For a water logged area the bore holes drilled in the sides, above, and below the working to shall be drilled with intervals of not more than ---------- Five meters. Six meters. Seven meters. Eight meters. Coal Mining Legislation 9 / 40 9. Auxiliary fans driven with compressed air Shall be earthed Need not be earthed Making mechanically stable is sufficient None of the above Coal Mining Legislation 10 / 40 10. In the case of an imported safety lamp, a part manufactured indigenously may be used if it is suitable and is approved by the -------------------- Chief Inspector. Regional Inspector. Both of the above. None of the above. Coal Mining Legislation 11 / 40 11. Explosives shall not be stored below ground in a mine except with the approval in writing of ----------- Chief Inspector. Regional Inspector. Mines manager. Blasting incharge. Coal Mining Legislation 12 / 40 12. The air-duct used for auxiliary fan shall be so placed at a distance of ___ meters from face, such that it supplies sufficient air to the face or blind end. 4.5 meters 3.5 meters 2.5 meters 1.5 meters Coal Mining Legislation 13 / 40 13. The walls of every air-crossing shall not be less than ____ cm in thickness if constructed with reinforced masonry or concrete. 0.5 centimeters 15 centimeters 1.5 centimeters 150 centimeters Coal Mining Legislation 14 / 40 14. The need of auxiliary fans driven electrically or otherwise to be earthed is due to To provide facility to run electrically in future and advance earthing, To see that other electrically driven equipment when contact will not create shock To prevent static charges from accumulating None of the above Coal Mining Legislation 15 / 40 15. The protective measures maintained to prevent danger from surface water are to be inspected by the Mines Manager once in at least ___. Three months Six months Year Month Coal Mining Legislation 16 / 40 16. If it is intended to flood the mine or a part of it, a notice is to be given ___ days before to the regional inspector. 30 days 14 days 90 days 60 days Coal Mining Legislation 17 / 40 17. The number of auxiliary fans permitted in a single split permitted are. two one three none of the above Coal Mining Legislation 18 / 40 18. The vehicle transporting explosives cannot be driven at a speed more than-------KMPH 35 15 20 25 Coal Mining Legislation 19 / 40 19. When a fan other than an auxiliary fan is installed belowground in the area of coal or other carbonaceous material, the distance along the sides, roof and floor that shall be covered with masonry or other adequate protection against fire is ___ meters from fan. 6 meters 5 meters 12 meters 9 meters Coal Mining Legislation 20 / 40 20. The samples shall be collected to measure dust in every return airway as lies within -------------meters of the last working face. Fifty meters Three hundred meters Two hundred meters none of the above Coal Mining Legislation 21 / 40 21. If after giving notice for intentional flooding 14 days before and if the flooding operations do ot take place within ___ days the notice shall be deemed to have lapsed and permission has to be taken again as if no such notice had been given. 45 days 30 days 90 days 60 days Coal Mining Legislation 22 / 40 22. The following explosives shall not be used in underground mines Gelatins ANFO based explosives, Liquid oxygen explosives None of the above Coal Mining Legislation 23 / 40 23. If the wires of any gauge of a flame safety lamp are broken or burnt away, The lamp can be used without gauge for an approved period None of the above The gauge shall be repaired with care and can be used, The gauge shall not be reconditioned for further use. Coal Mining Legislation 24 / 40 24. Any heap of dust or any other fine material that may rise in the air shall not be kept within ____ meters of down cast shaft. 90 m. 65 m. 75 m. 80 m. Coal Mining Legislation 25 / 40 25. On every haulage tramming or conveyor roadway which is not naturally wet throughout the samples shall be collected at intervals not more than ____ from each sampling point. One hundred and fifty meters one hundred meters Two hundred and fifty meters none of the above Coal Mining Legislation 26 / 40 26. Steel cases and containers for carrying explosives are. Not coated Copper coated Heavily galvanized Wooden lined Coal Mining Legislation 27 / 40 27. Maximum weight of explosive that a person can have in his possession in one case or container is----kg. Five kilograms of explosives Ten kilograms of explos Six kilograms of explosives Twelve kilograms of explosives Coal Mining Legislation 28 / 40 28. The incombustible dust shall not contain free silica more than---------% 15% 6% 10% 5% Coal Mining Legislation 29 / 40 29. The priming cartridge can be carried into a shaft in the course of being sunk by ____ Blasting incharge over man Sirdar Shot firer Coal Mining Legislation 30 / 40 30. The distance beyond which any working shall not be extended from any other working of the same mine or adjacent mine, if it is found to have water, or may have water and is not physically inspected for not having water, is 100 50 45 60 Coal Mining Legislation 31 / 40 31. Every stopping between the main intake and main return airways constructed with certain thickness is for. For arresting the accidental explosions on return side to reach the intake To arrest leakage and short circuit of intake and return To prevent gases to reach on either side from the other The wall can also provide good roof support so as to prevent load on door Coal Mining Legislation 32 / 40 32. The walls of every air-crossing shall not be less than ___ cm in thickness if constructed with non-reinforced masonry or concrete. 25 centimeters 15 centimeters 2.5 centimeters 250 centimeters Coal Mining Legislation 33 / 40 33. The material used for dusting shall be a mixture containing not less than 85% of incombustible matter in case of coal seams containing more than 30% volatile matter 75% of incombustible matter in case of coal seams containing less than 30% volatile matter Both of the above None of the above Coal Mining Legislation 34 / 40 34. If the exhausted air belowground which contains dust in excess of the ‘permissible limit’ is to be re-circulated, it shall be efficiently diluted to ___% below the ‘permissible limit’ before recirculation. five percent six percent nine percent ten percent Coal Mining Legislation 35 / 40 35. Wetting with water shall be done along with fine incombustible dust, in such a manner to ensure that the moisture in the mixture is not less than ----------------- by weight any time 30% 15% 45% 60% Coal Mining Legislation 36 / 40 36. Filter unit of exhausted air shall be inspected once in at least ____ Seven days, Six months, Six days, Eight days, Coal Mining Legislation 37 / 40 37. The explosive van has two fire extinguishers one of which is CCl4 and another CO2. They are respectively used for ___ types of fires petroleum fire & electrical fire electrical fire & petroleum fire both of the above none of the above Coal Mining Legislation 38 / 40 38. Filter unit of the exhausted air and every dust respirator shall be thoroughly examined and tested at least once in ------Months Five months. Six months, Three months. Twelve months. Coal Mining Legislation 39 / 40 39. Every zone formed as aforesaid shall be divided into three equal sections, each not exceeding ------in length. 510 meters 250 meters 150 meters 50 meters Coal Mining Legislation 40 / 40 40. A competent person shall, once at least in every____ days examine every airway. 06 days 12 days 15 days 14 days Coal Mining Legislation Your score is The average score is 48% LinkedIn Facebook Twitter 0% Admin07/08/20240 18 Less than a minute