Development of Mineral Deposits Mid - I, September - 2014

1.According to stages in life of mine the searching of an ore occurs in ........ stage?
  • Prospecting
  • exploration
  • exploitation
  • reclamation
Answer: A
2.Stages in life of mine ........ Method is used for ‘deeper deposits’?
  • In Direct method
  • Direct method
  • both
  • none of the above
Answer: A
3.The angle of the slope of the bench from the horizontal is called ......... ?
  • Pit slope angle
  • bench slope angle
  • berm
  • none of the above
Answer: B
4.Horizontal ledges situated on the non-productive side of the open pit mine are called ......?
  • Berm
  • bench
  • bench angle
  • non-productive material
Answer: A
5............... Is also known as in-going entrance or opening trench?
  • Ridge cut
  • fan cut
  • box cut
  • none of the above
Answer: C
6.What are the two methods involved in opencast mining for operation of removing OB and extracting mineral ............ and .......... ?
  • Excavation and production
  • development and reclamation
  • drilling and blasting operations
  • manual quarrying and mechanical opencast working
Answer: D
7.In which conditions the famous heavy machinery “bucket wheel excavator” used ............. ?
  • Soft rock conditions
  • hard rock conditions
  • cutting stone
  • coal
Answer: A
8.In open-pit mining (copper) the height of the bench must be .............. m?
  • I8-24
  • 10-12
  • 15-20
  • 12-18
Answer: D
9.In which method the ore is extracted in horizontal slices and replaced with backfill material ....... ?
  • Long wall method
  • sub-level caving
  • cut and fill stopping
  • none
Answer: C
10.......... Is the common example for low explosives?
  • Gun-powder
  • ANFO
  • slurry
  • none
Answer: A
12....................... and .......................... methods both are the basic methods used by the people in ancient days for then social development.
Answer: MINING AND AGRICULTURE
13.According to mining what are the naturally occurred mineral substances from the earth for the purpose daily household uses ..................................................?
Answer: SOLIDS, LIQUIDS AND GASSES
14.Bucket wheel excavator presently used in ....................................... mine?
Answer: NEYELI, LIGNITE
15.The room and pillar method comes under ................................. method
Answer: UN-SUPORTED METHOD
16.A low explosive is fired by .................................... ?
Answer: IGNITION OR FIRE
17.In purcussive drilling ................................... type of drill bit is used?
Answer: CHISEL
18.Ore handling and treatment plants constructed in ....................................... stage?
Answer: DEVELOPMENT STAGE
19.A front or more often sloping surface bounding the bench on the side of the worked out space is called .................................... ?
Answer: HIGH WALL
20.Longwall mining method is also comes under .......................................... method.
Answer: CAVING METHOD