Geology Model Question Papers

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Model Question Papers on Geology

1. Ore deposit formed at low temperature is termed as:
(1) Hypothermal
(2) Mesothermal
(3) Epithermal
(4) None of these

2. Fissure vein, ladder vein, stock work and_ saddle reef are characteristics of which ore deposits ?
(1) Evaporation
(2) Metasomatic replacement
(3) Metamorphism
(4) Cavity filling

3. Shimoga, Chitradurga, Chikmaglur and Bababudan Hill localities are associated with :
(1) Iron Deposit
(2) Lignite Deposit
(3) Copper Deposit
(4) Magnesite Deposit
4. Belka Pahar Wollastonite deposit is a
(1) Supergene Deposit
(2) Metamorphic Deposit
(3) Skarn Deposit
(4) Cavity filling Deposit

5. What is chemical composition of Pyrolusite ?
(1) Mn2O3
(2) MnO2
(3) Mn3O4
(4) MnCO3

6. Which of the following minerals glitters in ultraviolet light ?
(1) Wulfenite
(2) Wolframite
(3) Tungstite
(4) Scheelite

7. Among the following which mineral is not related to Aluminium ?
(1) Diaspore
(2) Bohemite
(3) Gypsite
(4) Guibbsite

8. Jaduguda Uranium deposit is associated with
(1) Schists
(2) Phyllites
(3) Schists and Phyllites
(4) Granites

9. A coal material resembling charcoal is
(1) Vitrain
(2) Clarain
(3) Durain
(4) Fusain

10. Which property of garnet makes it useful as abrasive ?
(1) Hardness
(2) Toughness
(3) Fracture
(4) All of these

11. Mica deposits of Rajasthan are associated with
(1) Pegmatite
(2) Quartzite
(3) Amphibolite
(4) Granite

12. Which of the following rocks does not contain alkali feldspar ?
(1) Meta-gabbro
(2) Meta-sedimentary rock
(3) Granite
(4) Peridotite

13. A coal which burns like a candle when ignited, is named :
(1) Boghead coal
(2) Cannel coal
(3) Anthracite coal
(4) Bituminous coal

14. Macerals in coal derived from fats and oils are called
(1) Bituminite
(2) Exudatinite
(3) Fluorinite
(4) Cutinite

15. A highly viscous, low-quality petroleum species is known as
(1) Tar
(2) Earth wax
(3) Asphalt
(4) Kerogen

16. Which of the following refers to source rock of petroleum ?
(1) Rock of petroleum migratory path
(2) Petroleum generating rock
(3) Petroleum storing rock
(4) None of these

17. Gossan is a/an
(1) Organic residue
(2) Suliceous residue
(3) Calcareous residue
(4) Ferruginous residue

18. When was the first oil struck in a well at Makuim in Assam at 40 m depth ?
(1) 26th March, 1867
(2) 26th March, 1866
(3) 1828
(4) 1837

19. The phyllites and schists intruded by granites at Khandela (Rajasthan) bear
(1) Uranium
(2) Thorium
(3) Lead
(4) Both Uranium and Thorium

20. China clay is also called
(1) Montmorrilonite
(2) Fire clay
(3) Kaolin
(4) Refractory clay

21. What is the porosity of dense basalt ?
(1) 5%
(2) 10%
(3) 20%
(4) 0.1-1%

22. Suppose you have a 10 litre bucket full of dry sandy material. You add just enough water until the sand becomes saturated. Assume that it takes exactly 2 litres to fill all of the pores. Find out how much is the porosity of sandy material.
(1) 20%
(2) 25%
(3) 40%
(4) 50%

23. Approximate height of capillary rise in silt is
(1) 125mm
(2) 250 mm
(3) 400 mm
(4) 1000 mm

24. What is nature of water if it has pH value less than 7 ?
(1) Basic
(2) Neutral
(3) Acidic
(4) None of these

25. Maximum concentration of Arsenic allowed in mg/L in drinking water is
(1) 0.01 mg/L
(2) 0.002 mg/L
(3) 0.05 mg/L
(4) 1 mg/L

26. The maximum permissible limit of fluoride in drinking water is
(1) 0.5 ppm
(2) 1.5 ppm
(3) 2.5 ppm
(4) 3 ppm

27. The fresh water from lakes, rivers and the subsurface have TDS value of
(1) 20 mg/L
(2) between 20 and 1000 mg/L
(3) between 1000 and 35000 mg/L
(4) about 35000 mg/L

28. The ratio of volume of water retained in the material to the total volume of material is
(1) Spectfic yield
(2) Porosity
(3) Specific retention
(4) Permeability

29. Which of the following formations represents aquiclude ?
(1) Clay bed
(2) Granite
(3) Sandy clay
(4) Sandstone

30. The value of specific yield of medium grained sandstone is :
(1) 6
(2) 27
(3) 38
(4) 44
31. What is unit of transmissivity ?
(1) M3/day/m
(2) m2/day
(3) both m3/day/m and m2/day
(4) m/day

32. What is the speed of gamma log measurement in radioactive formations ?
(1) 3 m/min. to 6 m/min.
(2) 5 m/min. to 8 m/min.
(3) 6 m/min. to 9 m/min.
(4) 7 m/min. to 10 m/min.

33. Water density varies slightly with temperature, this is strictly true only at
(1) 1.89 °C
(2) 3.89°C
(3) 6°C
(4) 8°C

34. How much is the rise in groundwater temperature at 100 m depth due to geothermal heat ?
(1) 4°C
(2) 2°C
(3) 3.3 °C
(4) 5 °C

35. Groundwater containing more than 500 mg/L chloride can be used for
(1) Municipal supply
(2) Irrigation
(3) Industries
(4) Animal’s drinking

36. The groundwater quality in southern Rajasthan is
(1) Fresh
(2) Brackish
(3) Saline
(4) Brackish to saline

37. Artesian well conditions are found sometimes during rainy season in
(1) Lathi Formation
(2) Sanu Formation
(3) Baisakhi Formation
(4) Bandah Formation

38. If the water molecules passing into vapour state exceed the number joining the liquid, the result is
(1) Evapotranspiration
(2) Evaporation
(3) Transpiration
(4) Fall in humidity

39. Which of the following rock types has maximum permeability ?
(1) Clastic sedimentary rock
(2) Chemical origin sedimentary rock
(3) Igneous rock
(4) Metamorphic rock

40. The undulating surface at which pore water pressure 1s equal to atmospheric pressure, is called
(1) Wilting point
(2) Capillary rise
(3) Water table
(4) None of these

41. The volume of water that a permeable unit will absorb or expel from storage per unit surface area per unit change in head is a dimensionless quantity. What is it called ?
(1) Permeability
(2) Storage co-efficient or storativity
(3) Porosity
(4) Specific storage

42. An imagery line that traces the path that a particle of groundwater would follow as it flows through an aquifer is known as
(1) Water table contour
(2) Flow net
(3) Flow line
(4) Depth of water table

43. What is specific yield of Palana Sandstone of Rajasthan obtained by pump test method ?
(1) 20%
(2) 15%
(3) 12%
(4) 7%

44. Generally what is height of small dams ?
(1) < 15 metre
(2) 20m
(3) > 20m
(4) between 25 m and 30m

45. What will be electrical resistivity value of sand with fresh water in ohm.m ?
(1) <5
(2) 1-50
(3) 80-200
(4) 500 – 1500

46. How much is average well discharge of water from Precambrian crystalline provinces of India ?
(1) 25 m/day
(2) 75 m/day
(3) 100 m3/day
(4) 200 m3/day

47. Portion of dam structure in contact with ground at upstream side is called
(1) Toe
(2) Heel
(3) Abutment
(4) Free-board

48. Which is a suitable site for dam construction ?
(1) Dam on shale
(2) Dam on strata dipping upstream
(3) Dam on strata dipping downstream
(4) Dam on permeable rocks

49. What is the chief factor(s) which causes over break in tunnel excavation ?
(1) Presence of hard and tough rock.
(2) Presence of closely spaced joints and fractures.
(3) Presence of thinly bedded rocks.
(4) All of these

50. If a tunnel is aligned across the strike of the strata, the tunnel will have more pressure on its
(1) Walls
(2) Roof
(3) on one side of tunnel
(4) None of these