Home/Coal Mining Legislation/Coal Mining Legislation – 15 Coal Mining Legislation Coal Mining Legislation – 15 Admin07/08/20240 30 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 - 14 1 / 40 1. When a new mechanical ventilator is installed, Standing Orders on evacuation of persons during stoppage of the fan are to be formed within ____ days of the installation, 60 days 45 days 90 days 30 days Coal Mining Legislation 2 / 40 2. For any underground mine, air samples and temperature readings shall be taken at least once in ------ 30 days 25 days 60 days 90 days Coal Mining Legislation 3 / 40 3. While a booster fan is installed, a notice along with the survey results is to be sent to Regional inspector for permission. If a booster fan is shifted from one place to other place instead of new installation, the following shall be applicable. The shifting shall be deemed to be a new installation and notice to be sent. The shifting shall be considered routine and no notice is needed, Shifting shall not be done and instead a new fan is to be installed, None of the above Coal Mining Legislation 4 / 40 4. In a mine of 2nd or 3rd degree the samples collected shall be analysed within ___ days Four Three Twenty four hours Seven days Coal Mining Legislation 5 / 40 5. Main mechanical ventilator of a mine shall be installed on the surface at a distance of not less than ___ meters from the opening of the shaft or incline. 10 meters 14 meters 25 meters 15 meters Coal Mining Legislation 6 / 40 6. When any alteration is made in the system of ventilation determination of % of inflammable gases in the air shall be made within ____ hours of such alteration. Four Eight Ten Twenty four Coal Mining Legislation 7 / 40 7. In every mine where a mechanical ventilator is in use, the quantity of air shall be measured once in ___ days. 12 days 15 days 06 days 14 days Coal Mining Legislation 8 / 40 8. The inspection to be done to assess the atmospheric condition behind the stopping’s built to sealed off the area of old workings or such goaf or a fire or spontaneous heating once in Thirty days need not be done under the condition The explosion stopping is built with fire proof material The stopping is explosion proof The explosion proof stopping is built with masonry wall None of the above Coal Mining Legislation 9 / 40 9. If a mine is stopped or discontinued for a period of ___ days or dewatered it should be inspected by competent person with suitable safety lamps and torches. seven days six days eight days nine days Coal Mining Legislation 10 / 40 10. If the dust concentration measured in any place in the mine approaches seventy five percent of the allowable concentration the periodicity of the dust sampling should be. Two months One month Three months Once in a week Coal Mining Legislation 11 / 40 11. To assess the atmospheric condition behind the stopping’s built to sealed off the area of old workings or such goaf or a fire or spontaneous heating, arrangements to ascertain the conditions behind the stopping are to be done once in. 25 days 15 days 30 days 10 days Coal Mining Legislation 12 / 40 12. The weighted average concentration of airborne respirable dust in milligrams per cubic meter of air sampled in the case of Manganese shall not exceed. Five, Seven, Ten, Six, Coal Mining Legislation 13 / 40 13. When a ventilation door or some other ventilation stopper is used, the space between the door and the walls + roof shall be filled with concrete wall not less than ---------------in thickness. 50 centimeters 75 centimeters 35 centimeters 25 centimeters Coal Mining Legislation 14 / 40 14. Underground re-lighting stations are to be located in Main return, District’s intake, Main intake At any convenient place Coal Mining Legislation 15 / 40 15. A place is considered to be having inflammable gas when the methane % is Two and a quarter % One and a quarter% Two % One and half % Coal Mining Legislation 16 / 40 16. When any booster fan is installed the notice along with the survey details done are to be sent to Regional inspector ___ days before such installation. Ten Seven Five One Coal Mining Legislation 17 / 40 17. The gallery of working areas shall be white washed up to a distance of ___ meters from the gallery 50 100 150 200 Coal Mining Legislation 18 / 40 18. A place is to be considered to be having inflammable gas when With the increased flame of a flame safety lamp With the sudden extinction of flame safety lamp, With the lowered flame of flame safety lamp, With internal explosion inside the flame safety lamp Coal Mining Legislation 19 / 40 19. Persons shall not be employed when the parting between the working and an overlying seam on fire where the thickness of hard rock parting is less than. 20 meters 30 meters 15 meters 10 meters Coal Mining Legislation 20 / 40 20. If the measured dust concentration of any place shows excess fifty percent concentration of the allowable concentration the periodicity of the dust sampling shall be once in. Three months One month Six months None of the above Coal Mining Legislation 21 / 40 21. In an underground dust sampling, distance at which the sampler shall be positioned on the return side of the point of dust generation is. 2 meter 1 meter 6 meter 4 meter Coal Mining Legislation 22 / 40 22. During air sampling if any determination shows the percentage of inflammable gas more than 0.8% further determinations shall be made once in ___ until the value comes down below 0.8%, along with steps being taken for reduction of the %. 8 hours 24 hours Two days None of the above Coal Mining Legislation 23 / 40 23. In a second or third degree mine, where un-used workings that are not sealed off exist, the Regional inspector may require regular inspection once in __ days Ten Two Fifteen Seven Coal Mining Legislation 24 / 40 24. During increased % of inflammable gases the sampling that is done once in 24 hours shows the % of gas less than 0.8% it is sufficient to carry out the sampling once in ____ 20 days 25 days 30 days None of the above Coal Mining Legislation 25 / 40 25. Where the mine is indicative of dangerous levels of inflammables, the lights have to be illuminated from any external source. This lighting shall be limited up to a distance of 100 meters from face 170 meters from face 200 meters from face 270 meters from face. Coal Mining Legislation 26 / 40 26. When there is fire in a higher seam or any place where there is spontaneous heating, the minimum distance of safety to be maintained by not employing persons is 60 meters 50 meters, 40 meters, 30 meters, Coal Mining Legislation 27 / 40 27. The instrument that is used for collection of samples shall be calibrated on a date which is not earlier than ___ from the date of sampling Two years. Three year. One year. Six years. Coal Mining Legislation 28 / 40 28. During sampling if the percentage of inflammable gas exceeds ___ % the frequency of determinations shall be made every 24 hours. 0.8, 0.6, 0.5, None of the above Coal Mining Legislation 29 / 40 29. The weighted average concentration of airborne respirable dust in milligrams per cubic meter of air shall not exceed the value arrived by dividing ------ with the percentage of free respirable silica present. Twenty Fifteen Twelve Ten Coal Mining Legislation 30 / 40 30. The samples are to be taken essentially at the Center of the district In the working places and average it At the intake side of the first working place, and on the return side of the last working place in the district. None of the above Coal Mining Legislation 31 / 40 31. The result of measurements of airborne dust and other relevant particulars shall be recorded within -------days of sampling Fourteen days Twelve days Six days Eleven days Coal Mining Legislation 32 / 40 32. Inspection of all stoppings erected to isolate or control a fire or spontaneous heating belowground shall be done once in at least in every 30 days 15 days 10 days 7 days Coal Mining Legislation 33 / 40 33. Every safety lamp is to be thoroughly checked by a manager, assistant manager, underground manager or a competent person and the result be entered in the book once in ____. once at least in every nine days once at least in every six days, once at least in every seven days, once at least in every eight days, Coal Mining Legislation 34 / 40 34. The dust sampling frequency is once in every --------------months. Four Five Six Seven Coal Mining Legislation 35 / 40 35. The travel of intake air shall be such, It should travel away from stagnant water. Shall not cause short circuit with return, It should travel as far as possible through smooth walled galleries to reduce resistance All the above Coal Mining Legislation 36 / 40 36. When a working or gallery is to be extended it shall be ensured that air is directed to the face from a distance of not less than ___ meters from the face. 4.5 meters 6.5 meters 5.5 meters 5.0 meters Coal Mining Legislation 37 / 40 37. For every fiery seam or gassy seam of the second or third degree One main intake air way to be provided through which men and material can travel, Two main intake airways to be provided one as a stand-bye and one for use of men and machines, Two main intake airways to be provided one of which shall be used as a travelling roadway Two main intake airways to be provided to serve for one-way traffic Coal Mining Legislation 38 / 40 38. When a narrow advance gallery is to be driven in continuation to already existing main gallery, it shall not extend beyond __ meters ahead of main gallery. Six meters Five meters Four meters Three meters Coal Mining Legislation 39 / 40 39. In a non-fiery seam or a first degree mine air measurements can be taken once in every ------- 30 days. 60 days. 45 days. 90 days. Coal Mining Legislation 40 / 40 40. The details of inspection with signature for every stopping that is made by competent person shall be maintained on the board for a period of not less than --- Six months. Five months. Four months. Three months. Coal Mining Legislation Your score is The average score is 76% LinkedIn Facebook Twitter 0% Admin07/08/20240 30 Less than a minute