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WCL MINE SURVEYOR EXAM -2023 PAPER WITH MINE PORTAL ANS KEY
WESTERN COALFIELDS LTD MINE SURVEYOR EXAM PAPER -2023
(Ans key is prepared by Mineportal Team and not an official key of WCL )
Q1.
As per the provisions under regulation 92 (12) of the Coal Mines
Regulation 2017, “Haulage roadway” Manholes shall be not less
than……………………. meters in height.”
a. 1.6
b. 1.8✔
c. 2.0
d. 2.2
Q2.
As per the provisions under regulation 93 (2) (c) of the Coal Mines
Regulation 2017, “Travelling roadways: Every travelling roadway shall
where the inclination exceeds …………… degrees from the horizontal be
provided, in addition to steps or ladders, with hand falls or ropes so
as to ensure safe travel.”
A. 1.5
B. 30
C. 45✔
D. 60
Q3.
AS per the provisions under regulation 101 of the Coal Mines Regulation
2017, “Roads for trucks and dumpers: The design, construction,
dimensions and ……………………. of haul roads (including ramps) and of parapet
walls or embankments or berms, to be provided along the edge of any road
that exists above the level of surrounding area or of any spoil or coal
dump, shall be as per the standards and parameters specified in a
general order in writing, by the Chief Inspector.”
A. Layout✔
B. Maintenance
C. Lightings arrangements
D. Inclination
Q4.
As per the provisions under regulation 105 (2) of the Coal Mines
Regulation 2017, “Manual opencast working: in manual opencast workings,
the following precautions shall be observed, namely: Where any pillar is
left ‘in situ’ for the purpose of measurement, its height shall not
exceed 2.5 meters: and where the height of such pillar exceeds 1.25
meters, the base of the pillar shall not be less than …………………… meters in
diameter.”
A. 1.5✔
B. 1.8
C. 2.0
D. 3
Q5.
As per the provisions under regulation 106 (4) of the Coal Mines Region
2017, “Mechanized opencast working: The height of the benches in
overburden consisting of alluvial soil, morum, gravel, clay, debris or
other similar ground shall not exceed ……………. meters and the width
thereof shall not be less than three times the height of the bench.”
A. 3✔
B. 3.5
C. 5
D. 6
Q6.
As per the provisions under regulation 108 (4) of the Coal Mines
Regulation 2017, “Spoil-banks and dumps: Any spoil bank exceeding 30
meter in height shall be benched so that no bench exceeds 30 meter in
height and the overall slope shall not exceed 1 vertical to ………………….
horizontal”.
A. 1
B. 1.2
C. 1.5✔
D. 1.8
Q7.
As per the provisions under regulation 111 (2) of the Coal Mines
Regulation 2017, “Development work: Save with the previous permission in
writing of the Regional Inspector and subject to such conditions as he
may specify therein, no gallery in a seam or section shall exceed three
meters in height or……………… meters in width at any place.”
A. 4.0
B. 4.2
C. 4.5
D. 4.8✔
Q8.
As per the provisions under regulation 111(4) of the Coal Mines
Regulation 2017, “Development work: The distance between the centers of
any two adjacent pillars left in a seam or section shall not be less
than …………………………. meters in case the depth of the seam or section from
the surface at that point exceeds 240 but not exceeding 360 meters and
where the width of the galleries does not exceed 4.2 meters.”
A. 28.5
B. 34.5
C. 39.5
D. 45✔
Q9.
As per the provisions under regulation 118 (2) of the Coal Mines
Regulation 2017, “Multi-Section acc contiguous working: No working shall
be made in more than one section in any seam, nor shall working be made
in any two seams lying within ……………. meters of each other, without the
prior permission in writing of the Chief Inspector,”
A. Three
B. Five
C. Nine✔
D. Twelve
Q10.
As per the provisions under regulation 119 (1) of the Coal Mines
Regulation 2017, “working under railways and roads, etc.: No working
shall be made and no work of extraction or reduction of pillars shall be
conducted at, or extended to, any point within ………………. meters of any
railway, or of any public work in respect of which this regulation is
applicable by reason of any general or special order of the Central
Government, or of any public road or building, or of other permanent
structure not belonging to the owner of the mine, without the prior
permission in writing of the Chief Inspector and subject to such
conditions as he may specify therein.”
A. 15
B. 30
C. 45✔
D. 60
Q11.
As per the provisions under regulation 122 (2) of the Coal Mines
Regulation 2017, “Working near mine boundaries in opencast mines: No
working shall be made within a distance of …………………. meters of that
boundary of any mine.”
A. 7.5✔
B. 12.5
C. 45.5
D. 60
Q12.
As per the provisions under regulation 149 (5) of the Coal Mines
Regulation 2017, “Danger from surface water: In every mine which is
likely to be endangered by surface water, the highest flood levels, and
danger levels at least ………………. meters or as required by the Regional
Inspector, below the highest flood level, shall be permanently marked at
appropriate places on the surface.”
A. 1.2✔
B. 1.5
C. 1.8
D. 2
Q13.
As per the provisions under regulation 149 (6) (b) of the Coal Mines
Regulation 2017, “Danger from surface water: No working shall be made in
any mine vertically below any spot lying within a horizontal distance
of ……………………. meters from either bank of a river or canal or from the
boundary of a lake, tank, or other surface reservoir.”
A. 15✔
B. 25
C. 45
D. 60
Q14.
As per the provisions under regulation 150 (2) (II) of the Coal Mines
Regulation 2017, “Danger from underground inundation: Where work is
being done in any place in a seam or section, which is at a lower level
than any other place in a ………………… seam or section.”
A. Upper
B. Lower✔
C. Adjacent
D. Farther
Q15. Cadastral map shows the ………………. of the surface features.
A. Height
B. Age
C. History
D. Boundary✔
Q16. Geodetic surveying is also called as trigonometric surveying considering ………………. of the earth.
A. Spread
B. Age
C. Curvature✔
D. Frequency
Q17. Gunter’s chain measures the distance in …………………….
A. Kilometer
B. Feet✔
C. Centimeter
D. Mile
Q18. The process of establishing………………………… on a chain line is called as ranging.
A. End points
B. Beginning point
C. Base line
D. Intermediate points✔
Q19. When two consecutive stations are not inter-visible, in such case………………… is done to establish intermediate stations.
A. Ranging
B. Traversing
C. Reciprocal ranging✔
D. Tacheometric surveying
Q20. A triangle is said to be well conditioned when no angle in it is less than 30 deg and more than……………
A. 90 deg
B. 100 deg
C. 110 deg
D. 120 deg✔
Q21. The lateral measurement taken from an object to the survey line is known as…………………………
A. Base line
B. Offset✔
C. Check line.
D. Survey station
Q22. The error caused due to improper holding of the chain is called as ……………………. error.
A. Base line error
B. Holding error
C. Compensating error✔
D. Cumulative error
Q23. The bearing of a line is the ……………………., it makes with some reference direction or the meridian.
A. Deviation
B. Projection
C. Horizontal angle✔
D. Vertical angle
Q24.
The line or plane passing through the geographical north and south
poles and any point on the surf of the earth is called as………………
A. Magnetic meridian
B. True meridian✔
C. Assumed meridian.
D. Arbitrary meridian
Q25. When the whole circle bearing (WCB) of a survey line 100 deg, its reduced bearing is estimated be……………………
A. 180 deg
B. 80 deg✔
C. 110 deg
D. 120 deg
Q26. When the fore bearing (FB) of a survey line is 220 deg, its back bearing is estimated to be:
A. 30 deg
B. 40 deg✔
C. 60 deg
D. 100 deg
Q27. True bearing of a line = Magnetic bearing +- ……………….
A. Base
B. Fore bearing.
C. Back bearing
D. Declination✔
Q28. ….………………. is not a variation in declination.
A. Secular variation
B. Annual variation
C. Diurnal variation
D. Annular variation✔
Q29. ….…………………… is a method for measuring horizontal angle through theodolite survey.
A. Repetition method✔
B. Global method
C. Round-up method
D. Link chain method
Q30. Datum line in leveling is a reference level or line from which………………… distances are measured.
A. Horizontal
B. Vertical✔
C. Circular
D. Tangential
Q31. Elevation of a point is its vertical distance above or below the …………………..
A. Link
B. Shape
C. Size
D. Datum✔
Q32. A benchmark (BM) is a fixed reference point of known…………………
A. Angle
B. Deviation
C. Elevation✔
D. Tangent
Q33. The apparent movement of an image with reference to the cross hair during levelling is known as ………………
A. Parallax✔
B. Collimation
C. Change point.
D. Turn point.
Q34. ..……………………….. is a method to find out reduced level.
A. Rise & Fall method✔
B. Back sight method
C. Fore sight method.
D. Turning point method
Q35. ….…………………….. is not a correction, to be applied during leveling.
A. Nominal correction✔
B. Curvature correction
C. Refraction correction
D. Combined correction
Q36. A line passing through the points of equal………………. is known as contour line.
A. Color
B. Reference
C. Angle
D. Reduced level✔
Q37. A ……………… distance between two consecutive contours is known as contour interval.
A. Angular
B. Tangential
C. Vertical✔
D. Horizontal
Q38. The horizontal distance between two consecutive contours is known as………….
A. Tangent
B. Collimation
C. Contour horizon
D. Horizontal equivalent✔
Q39. The contour lines are……………………. near the steep top of the hill.
A. Closer✔
B. Farther
C. Angular
D. Tangential
Q40. The contour lines are…………………… near the flat bottom of the hill.
A. Closer
B. Farther✔
C. Angular
D. Tangential
Q41. Radial line method comes under the ………………. method of contouring.
A. Direct
B. Indirect✔
C. Cross section
D. Square
Q42. ….………………….. is not a procedure for interpolation of contours.
A. Estimation
B. Arithmetical calculation
C. Graphical method
D. Logarithmic method✔
Q43. ….……………….. is not a rule for boundary calculation during Area estimation.
A. Mid-ordinate rule
B. Trapezoidal rule
C. Simpson rule
D. Bearing rule✔
Q44.
Find the appropriate number in the formula of Area computation as per
Trapezoidal rule. Total Area = d…………. (O1+2O2= up to 2On-1 + 2On)
Where, d = common distance, O= Ordinates, n= number of ordinates
A. 2✔
B. 3
C. 4
D. 5
Q45. Least count of Surveyor’s Total station is……………. second.
A. 1􃌂
B. 2
C. 3
D. 5
Q46.
As per the provisions under regulation 5 (3) of the Coal Mines
Regulation 2017, “Notice of abandonment, closure, or discontinuance:
When a mine or seam has been abandoned, closed or the workings thereof
has been discontinued over a period exceeding …………………. days, the owner,
agent, or manager shall, within seven days of the abandonment, closure,
or expiry of the said period of discontinuance, give to the Chief
Inspector and to the District Magistrate, notice in the Form and method
as may be specified by the Chief Inspector for the purpose.”
A. Thirty
B. Forty-five
C. Sixty✔
D. Ninety
Q47.
As per the provisions under regulation 7 (1) of the Coal Mines
Regulation 2017, “Notice of change ownership and appointment of agent,
manager, etc.: When a change in the name or ownership of a mine or in
the address of the owner, the owner, agent, or manager ……………. from the
date of the change, give to the Chief Inspector and the Regional
Inspector notice in the Form and method as may be specified by the Chief
Inspector for the purpose.”
A. Forthwith
B. Within seventy-two hours
C. Within seven days✔
D. Within fourteen days
Q48. Regulation 21 of the Coal Mines Regulation 2017, related to………………….
A. Exchange certificate✔
B. Duplicate certificate
C. Suspension of certificate
D. Validity of certificate
Q49.
As per the provisions under regulation 65 (1) (d) (viii) of the Coal
Mines Regulation 2017, “by plans-The owner, agent or manager of every
mine shall keep the following plans and section ventilation plan, and
section where necessary, showing the system of ventilation in the mine,
particular-every pumping………………., and ambulance station.”
A. Reserve station
B. Telephone✔
C. Miner’s station
D. Electrical sub station
Q50.
As per the provisions under regulation 77 (1) of the Coal Mines
Regulation 2017, “New installations: when it is intended to bring into
use any new winding installation lowering and raising of persons, the
owner, agent or manager shall, not less than …………… day such use, give
notice of such intention to the Chief Inspector and Regional Inspector.”
A. Seven
B. Fifteen
C. Thirty
D. Sixty✔
Q51.
As per the provisions under regulation 112 (9) of the Coal Mines
Regulation 2017, “Depillaring operations: Where the voids formed as a
result of extraction are stowed with sand or other materials, the owner,
agent or manager shall, on or before the …………… day of every month
submit to the Regional Inspector a statement giving the quantity of coal
raised and the quantity of sand or other material stowed in every
district during the preceding month.”
A. 10th✔
B. 15th
C. 20th
D. 30th
Q52. Arrows are used for counting the number of……………. while measuring a chain line.
A. Chain-links✔
B. Collars
C. Circular rings
D. Tags
Q53. ….………………….. is not a temporary adjustment of a theodolite.
A. Setting up over a station
B. Level adjustment
C. Color adjustment✔
D. Elimination of parallax
Q54. Least count of theodolite is……………………… second.
A. 5
B. 15
C. 20✔
D. 25
Q55.
As per the provisions of the Schedule under regulation 64 (2) of the
Coal Mines Regulation 2017, any Dyke shall be shown in………………… color in
plans and sections.
A. Red
B. Green✔
C. Black
D. Blue
Q56. Coal production of Western Coal fields Limited (WCL) for the FY 2022-23: ……………Million Te.
A. 57.70
B. 62.00
C. 64.82
D. 64.28✔
Q57. Coal production of Coal India Limited (CIL) for the FY 2022-23:………..Million Te.
A. 622.60
B. 664.31
C. 703.20✔
D. 711.23
Q58. Coal off -take of WCL for the FY 2022-23 :………………….Million Te.
A. 61.05
B. 69.56
C. 62.20✔
D. 53.64
Q59.
Coal, when heated in the absence of air, forms coherent beads, free
from volatiles, with strong porous mass, is known as…………
A. Middlings
B. Rejects
C. Fines
D. Coke✔
Q60. GCV stands for……………….
A. Gainful coal value
B. Gross coal value
C. Gainful calorific value
D. Gross calorific value✔
Q61. National Survey Day is observed on ……………., every year.
A. 10th May
B. 10th April✔
C. 10th March
D. 10th October
Q62. India won the Men’s T20 Cricket World Cup in the year …………………
A. 2006
B. 2007✔
C. 2009
D. 2011
Q63. Capital of Norway is …………………….
A. Copenhagen
B. Oslo✔
C. Warsaw
D. Stockholm
Q64. ….…………………… is the present Director (Technical) of Coal India Limited.
A. Dr. B Veera Reddy✔
B. Shri Vinay Ranjan
C. Shri Debasish Nanda
D. Shri Mukesh Choudhary
Q65. ….…………… number of subsidiaries of Coal India Limited are having their coal mines in Madhya Pradesh.
A. One
B. Two
C. Three✔
D. Four
Q66. ….………………… is the present Cabinet Coal Minister of India.
A. Shri Sriprakash Jaiswal
B. Shri Piyush Goyal
C. Shri Pralhad Joshi✔
D. Shri Ramchandra Prasad
Q67. Theory of relativity was given to this world, by …………………….
A. Albert Einstein ✔
B. Marie curie
C. Isaac Newton
D. Thomas Edison
Q68. The name of the advanced light helicopter designed and developed by Hindustan Aeronautics Limited (HAL) is …………………..
A. Eklavya
B. Arjun
C. Dhruv✔
D. Agni
Q69. The Indian, who won Nobel Prize in 2019 in Economic Sciences is ……………….
A. Dr. C V Raman
B. Shri Kailash Satyarthi
C. Dr. Amartya Sen
D. Shri Abhijit Banerjee✔
Q70. India shares the longest land border with ………………….
A. China
B. Bangladesh✔
C. Pakistan
D. Nepal
Q71. Dr. Abdul Kalam Island is located in the state of ………………..
A. Kerala
B. Andhra Pradesh
C. Tamil nadu
D. Odisha✔
Q72. Name of the Covid Vaccine developed by Indian Company, Bharat Bio-Tech. Is……………..
A. Covaxin✔
B. Covishield
C. Novovax
D. Sputnik
Q73. Recently in the year 2023, India helped earthquake hit …………….and Turkey.
A. Syria✔
B. Iraq
C. Iran
D. Saudi Arabia
Q74. Administrative capital of Lakshadweep is …………….
A. Kavaratti✔
B. Silvassa
C. Panaji
D. Daman
Q75. GIS relating to mapping stands for……………….
A. Geographic information system✔
B. Geological Information System
C. Geographic Information Survey
D. Generic Information Survey
Q76.
The person appointed to hold court to enquiry as per the provisions
under section 24 (2) of the Mines Act 1952, shall have all the powers of
a civil court under the Code of Civil Procedure (……………).
A. 1908✔
B. 1949
C. 1951
D. 1963
Q77.
As per the provisions under regulation 3 (1) of the Coal Mines
Regulation 2017, “Notice of opening: Provided that in case of change in
the boundary of a mine under regulations 121 and 122, a plan showing the
new boundary shall be submitted within …………… days of the said change.”
A. Seven ✔
B. Fourteen
C. Fifteen
D. Thirty
Q78.
As per the provisions under regulation 3 (3) of the Coal Mines
Regulation 2017, “Notice of opening: When a mine has been opened, the
owner, agent or manager shall ………………. communicate the actual date of
opening to the Chief Inspector, the Regional Inspector and to the
District Magistrate.”
A. Within seven days
B. Within fourteen days
C. Forthwith✔
D. Within ten days
Q79.
As per the provisions under regulation 4 (1) of the Coal Mines
Regulation 2017, “Annual returns: On or before ………………. day of February
in every year, the owner, agent, or manager shall submit to the Chief
Inspector, the Regional Inspector and to the District Magistrate annual
returns in respect of the preceding year.”
A. 1st✔
B. 10th
C. 14th
D. 20th
Q80.
As per the provisions under regulation 5 (1) of the Coal Mines
Regulation 2017, “Notice abandonment, closure, or discontinuance: When
it is intended to abandon or close mine or seam or to discontinue
workings thereof for a period exceeding ……………. days, the owner, agency,
or manager shall give a notice in the Form and method as may be
specified by the Chief Inspector the purpose.”
A. Thirty
B. Forty-five
C. Sixty✔
D. Ninety
Q81.
As per the provisions under regulation 6 (2) of the Coal Mines
Regulation 2017, “Notice of reopen When a mine has been reopened, the
owner, agent or manager of the mine shall ………………. communicate the actual
date of the reopening to the Chief Inspector, the Regional Inspector
and to the District Magistrate.”
A. Forthwith✔
B. Within seventy-two hours
C. Within seven days
D. Within fourteen days
Q82.
As per the provisions under regulation 7 (2) of the Coal Mines
Regulation 2017, “Notice of Change in ownership and appointment of
agent, manager, etc.: When the ownership of a mine is transferred
previous owner or his agent shall make over to the new owner or his
agent, within a period …………… days of the transfer of ownership, all
plans, sections, reports, registers and other record.
A. Seven✔
B. Fourteen
C. Twenty-one
D. Thirty
Q83.
As per the provisions under regulation 13 (1) of the Coal Mines
Regulation 2017, “Submission application: Application for an examination
conducted by the Board shall be to the Board not less than ……………. days
prior to the date fixed for the examination in a manner and a form
specified for the purpose.”
A. Thirty
B. Forty-five
C. Sixty✔
D. Ninety
Q84.
As per the provisions under regulation 14 (1) of the Coal Mines
Regulation 2017, “Age limit and general qualifications of candidates: No
person shall be admitted as a candidate at any examination held by the
Board unless he is ……………. years of age.”
A. Sixteen
B. Eighteen
C. Twenty✔
D. Twenty-one
Q85.
As per the provisions under regulation 16 of the Coal Mines Regulation
2017, “Practical experience of candidates for Surveyor’s Certificate
examination: No person shall be admitted as a candidate at any
examination for a Surveyor’s Certificate unless he has satisfied the
Board that he has had not less than …………………. year’ practical experience
of surveying of a type of the Board may specify, subject to the
conditions laid down in byelaws.”
A. One
B. Two✔
C. One and half
D. Three
Q86.
As per the provisions under regulation 19 of the Coal Mines Regulation
2017, “Number of attempts at examination: No person shall be admitted
for examination for a particular certificate beyond ………………… attempts
from the date of coming into force of these regulations.”
A. Three
B. Five
C. Six
D. Seven✔
Q87.
As per the provisions under regulation 34 (4) of the Coal Mines
Regulation 2017, “Appointment of surveyors: If a mine has more than one
surveyor, each shall carry the duties and the responsibilities of the
surveyor for the part or section of the mine to be assigned in writing
by the ……………………”
A. Manager
B. Agent
C. Agent or manager
D. Owner, agent, or manager✔
Q88.
As per the provisions under regulation 53 (2) (a) of the Coal Mines
Regulation 2017, “Duties and responsibilities of surveyor: the surveyor:
The surveyor shall record in a bound paged book kept for the purpose,
the full facts when working of the mine have approached to about……………….
meters from the mine boundary, or from disused or waterlogged workings.”
A. 30
B. 40
C. 60
D. 120✔
Q89.
As per the provisions under regulation 64 (1) (c) of the Coal Mines
Regulation 2017, “General requirements of mine plans: Every plan or
section prepared or submitted in accordance with the provisions of these
regulations shall-specify a scale of plan at least……………… centimeters
long and suitable subdivided.”
A. 15
B. 18
C. 25✔
D. 40
Q90.
As per the provisions under regulation 65 (1) (a ) of the Coal Mines
Regulation 2017, “Type of plans- Owner, agent or manager of every mine
shall keep the following plans and sections: a surface place showing
every surface feature within the boundaries, such as telephone,
telegraph or power transmission line, ………….., tram-line, railway, road,
river, water course, reservoir, tank, bore-hole, shaft and incline
opening, opencast working, subsidence and building on the surface.”
A. Tower
B. Bridge
C. Sub-station
D. Water main✔
Q91.
As per the provisions under regulation 65 (1) (b) (vi) of the Coal
Mines Regulation 2017, “Type of plans- The owner, agent or manager of
every mine shall keep the following plans and sections: an underground
plan showing-the position of every roll, …………. dyke and every fault with
the amount of direction and throw and hade.”
A. Fold
B. Slip
C. Washout✔
D. Cleat
Q92.
As per the provisions under regulation 65 (1) (e) of the Coal Mines
Regulation 2017, “Type of plans- a joint survey plan showing the details
required under clause (b) of the sub-regulation and sub-regulations (6)
and (7), signed by the surveyor and the manager of the mine and also of
adjoining mines having working within …………….. meters of the common
boundary.”
A. 25
B. 45
C. 60✔
D. 120
Q93.
As per the provisions under regulation 65 (1) (g) (I) of the Coal Mines
Regulation 2017, “Type of plans-a water-danger plan and section
showing, nullah, river, lake, water pond, water coarse, drainage or any
other water bodies on surface or below ground existing up to……………..
meters of the boundary of the mine.”
A. 60
B. 90
C. 120
D. 200✔
Q94.
As per the provisions under regulation 65 (1) (g) (ii) of the Coal
Mines Regulation 2017, “Type of plans-a water- danger plan and section
showing, the position of the working below ground and every hotshots and
shaft (with depth), drive, cross-cut,….. , excavation and air passage
connected therewith.”
A. Adit
B. Incline
C. Drift
D. Staple pit
Q95.
As per the provisions under regulation 65 (7) of the Coal Mines
Regulation 2017, “Type of plans - The plans maintained under clause (b)
of sub-regulation (1) shall also show the workings, and a feature as
specified in that clause, both above and below ground of all adjacent
mines as are situated within……………. meters, measured on any plane, of the
boundary claimed by the owner of the mine.”
A. 25
B. 45
C. 60✔
D. 90
Q96.
As per the provisions under regulation 66(1) of the Coal Mines
Regulation 2017, requisite plans any sections are to be submitted to the
Chief Inspector with in ……………. days after the abandonment closure of a
mine or seam or section.
A. Thirty✔
B. Forty-five
C. Sixty
D. Ninety
Q97.
As per the provisions under regulation 67 (2) of the Coal Mines
Regulation 2017, “Survey instruments and materials: the survey
instruments so provided under sub-regulation (1) shall
be
checked, maintained and calibrated at regular intervals as specified by
the ………………., to maintain their accuracy level.” A. Regional Inspector
B. Chief Inspector
C. Reputed scientific body.
D. Manufacturer✔
Q98.
As per the provisions under regulation 71 (3) (a) of the Coal Mines
Regulation 2017, “Outlets from a mine-suitable arrangements shall be
made for persons to descend and ascend by each of such means mechanical
means so installed and maintained as to be constantly available for
use.”
A. 30✔
B. 50
C. 80
D. 100
Q99.
As per the provisions under regulation 71 (6) of the Coal Mines
Regulation 2017, “Outlets a mine such shafts, inclines or outlets shall
not be less than……………. meters distant from one another at any point.”
A. 10.5
B. 12.5
C. 13.5✔
D. 16.5
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