MCQIN COAL INDIA (PART-4)

 *Why galleries are sometimes staggered?             (1)It will help to install transport system   (2)to avoid excessive exposure of roof at a place  (3)to provide good support to the roof (4)it will be give maximum coal output.                                                                                                                       *What is the expected range of LBC of a 2.5m long,15cm diameter timber prop?                            (1)5-10kn  (2)50-60kn  (3)15-20kn (4)120-130kn                                                                                          *Which of the following location is mostly prefired to erring a suqure chock?                            ( 1)at face   (2)at drive head of conveyors (3)at junction  (4)at tunnel                                                                                                                                         *It is the concept introduced by deere to quantify discontinuity spacing in rock masses     (1)RMR  (2)RQD  (3)roof class (4)jrc                                                                                                            *The horizontal component of the apparent displacement of a bed,measured along the direction of dip of the fault is                                   (1)throw of fault  (2)heave of fault  (3)hade of fault (4)horsts                                                                                                                                                     *The ratio of volume of voids in a rock or soil to its total volume is known as                                     (1)lithology  (2)plasticity  (3) permeability  (4)porosity                                                                                                                                                          *The top most horizon of the tertiary succession in Assam is known as                                                (1)surma series  (2)dihing series (3)barail series  (4)jaintia series                                                                                                                                     *The full from GIS is                                                  (1) geological information system  (2) geodetic information system (3)geographic information system  (3)Global information system                                                                                                          *A 100 m tape is held 1.5m out of line.what is the true length?                                                          (1)98.98m  (2)98.89m  (3)99.89m  (4)99.98m                                                                                             *What is the celestial pole?                                     (1)It is the rotation of all celestial bodies from north pole to south pole of earth                             (2)It is the rotation of all celestial bodies from east to west around the sun                                     (3) revolution of all celestial bodies from east to west round  a point called celestial pole                 (4)it is an imaginary sphere upon the earth surfaces   

Mining Engineering

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Mining Engineering

First-aid station

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First-aid  station is a place fixed by the manger for rendering first-aid to person injured.Every first-aid station is provided with equipment as prescribed in the Third schedule of mines Rules namely: a stretcher and two blanket,Sets of splints(1.4m,0.9m,0.3m,)and sufficient tringular bandages.First-aid boxes(or cupboards),one per150 person,containin sufficient supply of large and small dressings and burn dressings,sufficient supply of sterilised cotton and adhesive plaster,roller bandages,Dettol or other antiseptic solution,a tourniquet,scissors and safety pins,soap.                                                  First aid station shall be provided at the following places On surface:-                     At pit top/incline mouth.In workshop,screening plant and    ...
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Audio visual alarm

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  When a truck or dumper backs up a person standing behind the vehicle may get crushed.To alert such a person truck/dumpers are provided with audio visual alarm.As soon as the vechile is put in reverse gear, a special horn starts blowing and the backlight flashes.It is a statutory requirements that truck,dumper or loader shall not be run unless the audio visual alarm is working.
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MINE WORKING

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  Opencast working--In open cast working,the following precautions shall be observed,namely:                                          In alluvial soil,morum,gravel,clay,debris or other similar ground-;*the side shall be sloped at an angle of sefty not exceeding 45degree from the horizontal or such other angle as the regional inspector may permit by an order in writing are subject to such conditions as he may specify therein;or the side shall be kept benched and the hight of any bench shall not exceed 1.5meter and the breadth thereof shall not be less than the height:।       Provide that the regional inspector may,be an order in writing and subject to such conditions as he may specify therein, exempt form the operation of his clause any working in the case of which special difficult exist,which in his opinion make compily with the provisions their ...
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