Mining Methods
(a) 1 (b) 2 (c) 3 (d) 4
Q2. Longwall mining method is best suitable for .. ?
(a) Flat & moderately flat seam (b) Steeply inclined mine
(c) Fractured & geologically disturbed seam (d) Seam with high capability index
Q.3 Power pack is provided at Longwall face to give pressure to …..
(a) Powered support (b) Armored flexible conveyor
(c) Double ended ranging drum sheave (d) Stage loader
Q4. Over 90% of UG coal production in India comes from ….
(a) Longwall method (b) Hydraulic Mining Method
(c) Bord & Pillar Method (d) Blasting Gallery Method
Q5. A road in a proper coal seam is called ?
(a) Traveling road (b) Gallery (c) Drift (d) Haulage road
Q6. The process that sends sand water mixture in UG coal depillaring district is called
(a) Jigging operation (b) Granting separation operation
(c) Stowing Method (d) Coal drawing operation
Q7. Side discharge Loader (SDL) is a ……
(a) Crawler mounted m/c (b) Tyre mounted m/c
(c) Rail mounted m/c (d) Track mounted m/c
Q8. Thick, regular & flat seam is extremely essential for …
(a) Hydraulic Mining (b) Longwall Mining
(c) Blasting Gallery (d) Bord & Pillar
Q9. Which of the following equipment is very common for open casting/side casting?
(a) Shovel (b) Dozer (c) Dragline (d) Payloader
Q10. Name the machine which eliminates drilling, blasting in Open cast and has scope for selective mine ?
(a) Dozer (b) Shovel (c) Dragline (d) Surface Continuous Miner
Q11. Which of the following Excavator is suitable for 20-30 metres bench height in soft rock formation?
(a) Dragline (b) Shovel (c) Payloader (d) Bucket Wheel Excavator
Q12. Filling up of the void in OC mines is known as …
(a) OB Removal (b) Trenching (c) Reclamation (d) Salvaging
Q13. Flame Safety Lamp is used for testing ………….
(a) CO (b) CO2 (c) CH4 (d) H2S
Q14. In which state small deposits of Anthracite coal is found?
(a) J&K (b) Tamil Nadu (c) Assam (d) Gujarat
Q15. Which of the indigenous firm manufacture SDL & LHD in India?
(a) Joy Mining Machinery Co (b) Atlas Copeo
(c) Eimco Elecon (d) Tractors India Ltd
Q16. Road Header is used to drive ………………..
(a) Single heading (b) Double heading (c) Triple heading (d) Multiple heading
Q17. A building where explosives & detonators are stored is called
(a) Sheller (b) Magazine (c) Store (d) House
Q18. Which is best quality coking coal ?
(a) Steel grade –I (b) Steel grade –II (c) Washery grade –I (d) Washery grade –IV
Q19. Which is the best quality Non-cocking coal ?
(a) G (b) D (c) C (d) A
Q.20 What is true about Universal Drilling Machine (UDM) ?
(a) It is crawler mounted (b) It can drill in any direction
(c) It can drill blast holes (d) All of the above
Q21. UDM can drill in which of the following direction?
(a) Horizontal (b) Vertical (c) Inclined (d) All directions
Q22. Which is a mine transport system
(a) Rope Haulage (b) Locomotive Haulage (c) Shuttle Car (d) All of above
Q23. What is EMP ?
(a) Environment Management Plan (b) Environment Management Project
(c) Environment Management Programme (d) Environment Mine Plan
Q24. Coke can not be made from …………………..….
(a) Lignite (b) Anthracite Coal (c) Sub-bituminous Coal (d) All
Q25. What are the products of a coal washing ?
(a) Washed Coal (b) Middling (c) Rejects (d) All
Q26. Which of the following is not correct for Anthracite coal?
(a) Small deposits in India is found in J&K (b) It is best quality coal
(c) Best coke can be made from this coal (d) All of the above
Q27. What is correct about Bituminous coal?
(a) Coke can be made from this coal (b) It can be used as domestic fuel
(c) It can be used in thermal power plant (d) All of the above
Q28. Ultimate Analysis of coal gives percentage of…………………… present in coal.
(a) Carbon (b) Hydrogen (c) Sulphur (d) All of the above
Q29. Proximate Analysis of coal gives percentage (by weight of) ………… present in coal.
(a) Ash (b) Volatile Matter (c) Fixed Carbon (d) All of the above
Q30. Name the type of coke manufactured by heating coking coal at 650 degree Celsius temperature in absence of oxygen ?
(a) Soft Coke (b) LTC Coke/CIL Coke (c) Both (d) Hard Coke
Q31. Which of the following gases are common in Under Ground Mines ?
(a) Oxygen (b) Hydrogen (c) Carbon Dioxide (d) All of the above
Q32. What is the common name for Methane in Under Ground Coal Mines ?
(a) Firedamp (b) Stinkdamp (c) Blackdamp (d) Whitedamp
Q33.In which mine was fully mechanized Longwall Face with Powered Support was first introduced in India ?
(a) Moonidih (BCCL) (b) Dhemo Main Colliery (ECL)
(c) Pathakhera No.2 (WCL) (d) Ramagundam GDK (SCCL)
Q34. Hard Coke is made by heating coking coal at …………….. Celsius temperature in absence of oxygen ?
(a) 500 degree C (b) 100 degree C (c) 650 degree C (d) 1,000 – 1,100 degreeC
Q35. Shortwall Mining is a variant of………………
(a) Bord & Pillar (b) Longwall (c) Both of the above (d) None of the above
…………………………………………………………………………………………………
ANSWER
1(c), 2(a), 3(a), 4(c), 5(b), 6(c), 7(a), 8(c), 9(c), 10(d), 11(d), 12(c), 13(c), 14(a), 15(c), 16(a), 17(b), 18(a), 19(d), 20(d), 21(d), 22(d), 23(a), 24(d), 25(d), 26(c), 27(d), 28(d), 29(d), 30(c), 31(d), 32(a), 33(a), 34(d), 35(c).
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