MCQ IN COAL INDIA (Part 1)

 *Which of the following belong to hard rock mining?                                                                         (1)Potash. (2)Salt. (3)trina. (4)iron.                                                                                                   *Gravimetric dust sampler is;                              (1) intrinsically safe apparatus. (2)FLP,(3)It has both the features, (4)none of the above.                                                                                       *Maximum accidents in india is caused due to;।                                                                                  (1)roof fall,  (2) inundation  (3)gas explosion   (4)fire.                                                                                                                                     *The caplamp used by the miners is–                 (1)intrinsically safe  (2)flame proof  (3)neither intrinsically safe nor flame proof   (4) adequate to produce spark.                                                                                                             *Which of the following equipment is very common for over casting or side casting?        (1)shovel  (2)dozer (3)dragline (4)payloader.                                                                                      *Which of the following method employ horizontal openings?                                              (1)room and pillar mining  (2) shrinkage stoping  (3)sublevel stoping  (4) cut and fill stoping.                                                                                                                                                        *Soutirage mining is the alternative name of-                                                                              (1) sublevel stoping  (2) integral caving  (3)block caving  (4)blasting gallery.                                                                                                       *Danger of air blast is maximum with             (1)stope and pillar mining (2)cut and fill stoping  (3)blasting gallery   (4) shrinkage stoping                                                                                                                                                         *Extraction to a small sized irregular and unsystemetic underground working is called                                                                         (1) sublevel stoping  (2)gophering (3)room and pillar mining  (4)time office                                                                                                            *In our country a coal seam is cllasified as thick seam if it is more than                                (1)step diagonal  (2)step diagonal (3) diagonal (4)semi circular.

Mining Engineering

Comments

Post a Comment

Mining Engineering

First-aid station

Image
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    ...
Read more

Audio visual alarm

Image
  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.
Read more

MINE WORKING

Image
  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 ...
Read more