1. What does "abandoned working" refer to?
A) A working temporarily shut down for maintenance
B) A working abandoned with no intention of working in the future
C) A working currently under inspection
D) A working reserved for emergency purposes
Answer: B) A working abandoned with no intention of working in the future
2. What is "Abandoned Mine Methane (AMM)"?
A) Methane released during active mining operations
B) A natural gas recovered from abandoned coal mines or parts thereof
C) Methane produced by chemical treatment of coal
D) Gas stored in mining equipment
Answer: B) A natural gas recovered from abandoned coal mines or parts thereof
3. The term "Act" in the text refers to which legislation?
A) The Indian Mines Safety Act
B) The Mines Act, 1952
C) The Coal Mines Regulation Act, 2017
D) The National Mining Policy Act
Answer: B) The Mines Act, 1952
4. Who specifies the type of approved safety lamps or electric torches?
A) The mine manager
B) The Chief Inspector through general or special orders
C) The owner of the mine
D) The Ministry of Coal
Answer: B) The Chief Inspector through general or special orders
5. Who is an "assistant manager" in a mine?
A) A person responsible for operating machinery in a mine
B) A person appointed to assist the manager and who holds a rank below the manager but above an overman and sirdar
C) A person supervising the financial aspects of the mine
D) A technician trained in coal processing
Answer: B) A person appointed to assist the manager and who holds a rank below the manager but above an overman and sirdar
6. What does "auxiliary fan" mean?
A) A fan used on the surface to ventilate the mine
B) A fan used underground mainly for ventilating one or more faces in a ventilating district
C) A backup fan used during emergencies
D) A fan used to cool mining equipment
Answer: B) A fan used underground mainly for ventilating one or more faces in a ventilating district
7. How is the "average output" of a mine calculated?
A) By measuring the daily output of the current year
B) By calculating the average output per month during the preceding financial year
C) By evaluating the output of the highest-producing month
D) By using a standardized calculation provided by the government
Answer: B) By calculating the average output per month during the preceding financial year
8. What is the role of a "banksman"?
A) To supervise mining operations belowground
B) To superintend the lowering and raising of persons, tools, and materials at the top of a shaft or incline
C) To manage the financial transactions of a mine
D) To handle the sales and distribution of coal
Answer: B) To superintend the lowering and raising of persons, tools, and materials at the top of a shaft or incline
9. What does "booster fan" mean?
A) A fan used to ventilate surface facilities of a mine
B) A mechanical ventilator used belowground to boost the air current in intake or return airways
C) A fan used during emergencies for quick ventilation
D) A portable fan used for spot ventilation
Answer: B) A mechanical ventilator used belowground to boost the air current in intake or return airways
10. What does "coal" include as per the text?
A) Only anthracite and bituminous coal
B) Only lignite and peat
C) All forms of carbonaceous matter sold or marketed as coal, including anthracite, bituminous coal, lignite, and peat
D) Only coal found in underground mines
Answer: C) All forms of carbonaceous matter sold or marketed as coal, including anthracite, bituminous coal, lignite, and peat
11. What is "Coal Mine Methane (CMM)"?
A) Methane extracted from abandoned mines
B) A natural gas recovered from a coal mine or part thereof
C) Methane artificially produced in laboratories
D) A by-product of coal combustion
Answer: B) A natural gas recovered from a coal mine or part thereof
1. What does the term "Committee" refer to in the context of the Coal Mines Regulations?
A) A group of mine workers overseeing daily operations
B) A committee appointed under section 12 of the Mines Act
C) A safety team formed by the mine manager
D) A local authority supervising the mine operations
Answer: B) A committee appointed under section 12 of the Mines Act
2. Who is considered a "competent person" in relation to machinery or work in a mine?
A) Any individual with experience in mining operations
B) A person appointed by the Chief Inspector for special tasks
C) A person aged 20 or older, appointed in writing by the manager, to supervise or perform specific work or machinery operations
D) A government officer responsible for mine inspections
Answer: C) A person aged 20 or older, appointed in writing by the manager, to supervise or perform specific work or machinery operations
3. What is the meaning of "contractor" as per the regulations?
A) An individual responsible for mine safety
B) A person or organization providing services or operations in a mine on a contract basis, including sub-contractors
C) A temporary worker employed directly by the mine owner
D) A local government official overseeing mining activities
Answer: B) A person or organization providing services or operations in a mine on a contract basis, including sub-contractors
4. What is "deep-hole drilling and blasting"?
A) Drilling operations less than 3 meters deep for exploratory purposes
B) Drilling holes more than 3 meters deep for blasting in opencast mining
C) A method of extracting coal without blasting
D) A process used in underground coal mining
Answer: B) Drilling holes more than 3 meters deep for blasting in opencast mining
5. What does "discontinued working" refer to?
A) A working that has been abandoned with no intention of reopening
B) A working temporarily stopped for maintenance
C) A working that is inaccessible but may be worked again in the future
D) A working that is completely sealed off due to safety concerns
Answer: C) A working that is inaccessible but may be worked again in the future
6. Who is the "District Magistrate" in relation to a mine spanning two districts?
A) The District Magistrate where the mine's headquarters is located
B) The District Magistrate responsible for maintaining law and order in the revenue district where the mine is situated
C) The District Magistrate authorized by the Central Government for that purpose
D) Any Deputy Commissioner of either district
Answer: C) The District Magistrate authorized by the Central Government for that purpose
7. What is a "fiery seam"?
A) A coal seam emitting excessive amounts of gas
B) A seam prone to flooding during rainy seasons
C) A seam where a fire or spontaneous heating exists in underground or opencast workings
D) A seam rich in high-quality anthracite coal
Answer: C) A seam where a fire or spontaneous heating exists in underground or opencast workings
8. According to the regulations, what does "explosive" mean?
A) Substances specifically designed for mining operations
B) Any substance capable of causing an explosion, as defined in the Explosives Act, 1884
C) A chemical compound used for breaking rocks
D) Materials used to ignite gas in coal seams
Answer: B) Any substance capable of causing an explosion, as defined in the Explosives Act, 1884
9. What does the term "gassy seam of the first degree" indicate?
A) A coal seam with no traces of inflammable gas
B) A seam where the percentage of inflammable gas does not exceed 0.1% and the emission rate is less than one cubic meter per tonne of coal
C) A seam emitting more than 10 cubic meters of inflammable gas per tonne of coal
D) An open cast seam with high levels of carbon monoxide
Answer: B) A seam where the percentage of inflammable gas does not exceed 0.1% and the emission rate is less than one cubic meter per tonne of coal
10. What distinguishes a "gassy seam of the second degree"?
A) A seam emitting no inflammable gas during mining
B) A seam where the percentage of inflammable gas is above 0.1% but the emission rate does not exceed 10 cubic meters per tonne of coal
C) A seam found only in opencast mines
D) A seam entirely sealed off due to hazardous conditions
Answer: B) A seam where the percentage of inflammable gas is above 0.1% but the emission rate does not exceed 10 cubic meters per tonne of coal
1. What defines a "gassy seam of the third degree"?
A) A coal seam where the rate of inflammable gas emission exceeds 5 cubic meters per tonne of coal
B) A coal seam emitting more than 10 cubic meters of inflammable gas per tonne of coal
C) A coal seam that is entirely sealed off due to hazardous conditions
D) A seam with no detectable inflammable gas
Answer: B) A coal seam emitting more than 10 cubic meters of inflammable gas per tonne of coal
2. What does the term "general body of air" include?
A) The atmosphere in sealed-off areas of a mine
B) The atmosphere in boreholes drilled in coal or adjacent strata
C) The general atmosphere in a coal seam, including roof cavities
D) The atmosphere only at the working face
Answer: C) The general atmosphere in a coal seam, including roof cavities
3. What does "goaf" refer to in mining terminology?
A) A working face where coal is currently being extracted
B) A part of underground workings where coal has been extracted but is no longer a working place
C) A ventilation passage in underground mining
D) A shaft used for transporting materials
Answer: B) A part of underground workings where coal has been extracted but is no longer a working place
4. What is "Heavy Earth Moving Machinery (HEMM)" used for?
A) Transporting coal from the mine to the processing plant
B) Conducting manual drilling and blasting operations
C) Activities like digging, drilling, dredging, and transporting minerals or overburden in opencast mines
D) Supervising underground mining operations
Answer: C) Activities like digging, drilling, dredging, and transporting minerals or overburden in opencast mines
5. What does "intrinsically safe" mean?
A) Equipment designed to prevent unauthorized access
B) Machinery capable of withstanding extreme pressure
C) A term as defined under the Central Electricity Authority (Measures Relating to Safety and Electric Supply) Regulations, 2010
D) A system ensuring environmental safety in opencast mines
Answer: C) A term as defined under the Central Electricity Authority (Measures Relating to Safety and Electric Supply) Regulations, 2010
6. Who is a "manager" as defined in the regulations?
A) A person with financial oversight of the mine
B) A supervisor appointed by the Chief Inspector
C) A manager appointed under regulation 27
D) Any individual with a Manager’s Certificate
Answer: C) A manager appointed under regulation 27
7. What is a "misfire"?
A) The partial explosion of explosives in a blast hole
B) The failure to ignite the fuse of explosives
C) The failure to explode of an entire charge of explosives in a shot hole or blast hole
D) An accidental explosion in a mine
Answer: C) The failure to explode of an entire charge of explosives in a shot hole or blast hole
8. Who is an "overman"?
A) A person responsible for lowering materials in a mine shaft
B) A person with a Manager’s or Overman’s Certificate appointed to supervise or control a mine
C) A technician responsible for operating mining machinery
D) A miner working at the coal face
Answer: B) A person with a Manager’s or Overman’s Certificate appointed to supervise or control a mine
9. What is the role of an "onsetter"?
A) To supervise ventilation systems
B) To transmit signals and supervise raising and lowering of persons, tools, and materials at any inset or shaft bottom
C) To manage coal extraction at the working face
D) To ensure mine safety regulations are followed
Answer: B) To transmit signals and supervise raising and lowering of persons, tools, and materials at any inset or shaft bottom
10. What does the term "haul road" refer to?
A) A passage used to transport materials from underground to the surface
B) A road maintained in opencast mines for machinery movement within the mine precincts
C) A temporary pathway for workers within a mine
D) A passage used exclusively for emergency evacuations
Answer: B) A road maintained in opencast mines for machinery movement within the mine precincts
1. What is the definition of a "permitted explosive" as per the regulations?
A) An explosive permitted for use by any mine official.
B) An explosive manufactured by any firm authorized by the local government.
C) An explosive manufactured by firms and types specified by the Chief Inspector through a general or special order.
D) An explosive created specifically for surface mining operations.
Answer:
C) An explosive manufactured by firms and types specified by the Chief Inspector through a general or special order.
2. What does "pipeline" refer to in the context of mining operations?
A) A structure used exclusively for water transportation in mines.
B) A pipeline for sand stowing, nitrogen flushing, and extraction of gases such as CMM and AMM.
C) A line dedicated only to coal slurry transportation in mines.
D) A small channel used for ventilation within underground mines.
Answer:
B) A pipeline for sand stowing, nitrogen flushing, and extraction of gases such as CMM and AMM.
3. Who is considered the "principal official" in a mine?
A) The mine manager overseeing all departments.
B) The senior-most mine official in the mining discipline on duty in the mine.
C) The safety officer responsible for inspecting mining operations.
D) The district magistrate of the area where the mine is situated.
Answer:
B) The senior-most mine official in the mining discipline on duty in the mine.
4. What is meant by a "public road" in mining regulations?
A) Any road within the mining area used exclusively by mine vehicles.
B) A road used for transporting coal to the railway stations.
C) A road maintained for public use and under the jurisdiction of a government or local authority.
D) A private road constructed and maintained by the mining company.
Answer:
C) A road maintained for public use and under the jurisdiction of a government or local authority.
5. How is a "shaft" defined in these regulations?
A) A vertical tunnel used solely for ventilation purposes.
B) A horizontal tunnel used to transport materials to the surface.
C) A way or opening leading from the surface to belowground workings or between underground levels, in which a conveyance can travel.
D) An opening constructed to pump water from underground workings.
Answer:
C) A way or opening leading from the surface to belowground workings or between underground levels, in which a conveyance can travel.
6. Who is a "shot-firer"?
A) A person appointed to carry out blasting operations under regulation 190.
B) A mine worker responsible for handling misfired explosives.
C) An inspector who supervises all blasting activities in a mine.
D) An individual responsible for transporting explosives within the mine.
Answer:
A) A person appointed to carry out blasting operations under regulation 190.
7. What is the meaning of "socket" in mining terminology?
A) A hole drilled for placing explosives before blasting.
B) A part of a shot hole remaining after being charged with explosive and blasted, but not considered a misfired hole.
C) A section of a mine designed to hold blasting equipment.
D) An unfilled section of a mine used for ventilation.
Answer:
B) A part of a shot hole remaining after being charged with explosive and blasted, but not considered a misfired hole.
8. What does "ventilation district" refer to?
A) An area in the mine dedicated to housing ventilation equipment.
B) The entire mine, regardless of independent airways.
C) A part of the mine with independent intake and return airways terminating at the main intake and return airways.
D) A specific section of the mine where airflow is natural and unrestricted.
Answer:
C) A part of the mine with independent intake and return airways terminating at the main intake and return airways.
9. What is a "working place" as per the Coal Mines Regulations?
A) Any area in the mine where equipment is stored.
B) A section of the mine where excavation is ongoing for coal extraction.
C) Any place in the mine to which a person has lawful access.
D) A designated area for miners to rest during their shift.
Answer:
C) Any place in the mine to which a person has lawful access.
10. How is a "risk" defined in mining regulations?
A) The likelihood of an accident occurring without any preventive measures.
B) A combination of the likelihood of a specific unwanted event and its potential consequences.
C) Any unanticipated event that disrupts mining operations.
D) The probability of equipment malfunction leading to a safety hazard.
Answer:
B) A combination of the likelihood of a specific unwanted event and its potential consequences.
11. What is a "tub" in mining operations?
A) A container used for storing explosives in the mine.
B) A vehicle moving on rails used to convey materials in a mine.
C) A tank used for water storage underground.
D) A bucket used to transfer coal to the surface.
Answer:
B) A vehicle moving on rails used to convey materials in a mine.