Geology Quiz Question Papers

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Quiz Question Papers on Geology

1. Which of the following minerals shows parallel extinction ?
(1) Hornblende
(2) Diopside
(3) Hypersthene
(4) Augite

2. Which of the following is a non-pleochroic mineral ?
(1) Hypersthene
(2) Hornblende
(3) Biotite
(4) Lepidolite

3. Which of the following is a pleochroic mineral ?
(1) Quartz
(2) Calcite
(3) Tourmaline
(4) Garnet

4. Which of the following represents symmetry of calcite ?
(1) 1A3 3A2 ; 3m;i
(2) 1A3, 2A2, ;6m
(3) 1A3 4A2 ; 3m
(4) 1A3, 3A, i

5. Peridot is a gem variety of __.
(1) Garnet
(2) Calcite
(3) Jadiet
(4) Olivine

6. Transparent variety of calcite is
(1) Peridot
(2) Demantoid
(3) Icelandspar
(4) None of these

7. Ruby is gem variety of
(1) Tourmaline
(2) Beryl
(3) Corundum
(4) Topaz

8. What is the number of naturally occurring open forms in crystals ?
(1) 80
(2) 18
(3) 12
(4) 26

9. Trapezohedron has___ faces.
(1) 12
(2) 18
(3) 24
(4) 48

10. Which of the following minerals has tectosilicate structure ?
(1) Garnet
(2) Beryl
(3) Riebekite
(4) Nepheline

11. Which of the following is not an inner planet ?
(1) Jupiter
(2) Mercury
(3) Venus
(4) Earth

12. The most abundant elements (atoms / 10° atoms of Si) in the solar system is
(1) Helium
(2) Oxygen
(3) Hydrogen
(4) Carbon

13. Elements heavier than Bismuth were formed by__.
(1) α process
(2) e process
(3) y process
(4) s process

14. x process produces _.
(1) Li, Be and B
(2) He
(3) C
(4) Fe, Mn, Mg

15. The average density of the core of earth is
(1) > 11 g/cm3
(2) between 5 and 7 g/cm3
(3) between 7 and 9 g/cm3
(4) <5 g/cm2

16. Which of the following is a chalcophile element ?
(1) Li (Lithium)
(2) Ar (Argon)
(3) Ag (Silver)
(4) Fe (Iron)

17. Platinum is a _________ element.
(1) Siderophile
(2) Chalcophile
(3) Lithophile
(4) Atmophile

18. Half life period of 235U is
(1) 4.88 x 1010 years.
(2) 4.47 x 109 years
(3) 1.39 x 1010 years
(4) 1.06 x 1011 years

19. Percentage of silicate minerals in the earth’s crust is about
(1) 95%
(2) 65%
(3) 75%
(4) 85%

20. Elements with same number of neutrons but different number of protons and different atomic weight are called ______.
(1) Isotopes
(2) Isotones
(3) Isobars
(4) None of these

21. Siderophile elements has affinity with
(1) Sulphar
(2) Iron
(3) Silica
(4) Oxygen

22. Which is the plutonic equivalent of nephelinite ?
(1) Syenite
(2) Gabbro
(3) Nepheline syenite
(4) Ijolite

23. SiO2 content of ultra basic rocks is
(1) > 66%
(2) 52-66%
(3) <45%
(4) 45 —66%

24. Alkali — lime index of alkali igneous rock is
(1) <51
(2) >61
(3) 56-61
(4) 51-56

25. Which one of the following is true for alkaline rocks ?
(1) Al2O3 > Na2O+K20+CaO
(2) Na2O+K2O<AI2O3
(3) Al2O3 = Na2O+ K2O
(4) Al2O3<Na2O+K2O

26. Which one of the following structures of igneous rocks is used in determining stratigraphic sequence ?
(1) Joint
(2) Ropy lava
(3) Pillow structure
(4) Flow structure

27. Grain size of igneous rocks is affected by _ .
(1) viscosity of magma
(2) volatile content
(3) rate of cooling
(4) All of these

28. Eutectic composition for orthoclase —Albite pair is ______.
(1) 30:70
(2) 45:55
(3) 42:58
(4) 60:40

29. Which of the following pairs does not show eutectic crystallization ?
(1) Orthoclase — Quartz
(2) Albite — Anorthite
(3) Anorthite — Olivine
(4) Orthoclase — Albite

30. Which of the following pairs does not show solid solution ?
(1) Forsterite — Fayalite
(2) Enstatite Ferrosilite
(3) Orthoclase — Quartz
(4) Albite — Anorthite

31. Volatile content of a magma, causes
(1) Increase in viscosity of magma
(2) Decrease in viscosity of magma
(3) Increase in grain size of rock formed
(4) Both (2) and (3)

32. In panidiomorphic texture of igneous rocks
(1) grains are equigranular and euhedral
(2) grains are equigranular and subhedral
(3) grains are equigranular and anhedral
(4) grains are inequigranular and euhedral

33. Ophitic texture is found in _.
(1) Granite
(2) Syenite
(3) Dolerite
(4) Monzonite

34. Which of the following sequences represent order of crystallization from a magma ?
(1) Olivine — Pyroxene — Ambibole — Quartz
(2) Pyroxene — Olivine — Quartz — Amphibole
(3) Quartz — Olivine — Amphibole — Pyroxene
(4) Ambibole — Quartz — Pyroxene — Olivine

35. Which of the following rocks does not have nepheline ?
(1) Phonolite
(2) Nepheline syenite
(3) Rhyolite
(4) Ijolite

36. Which among the following rocks has lowest percentage of SiO2 ?
(1) Granite
(2) Diorite
(3) Dunite
(4) Gabbro

37. Diagrammes showing variation of various oxides with SiO2 are called
(1) Harker Diagramme
(2) ACF Diagramme
(3) AFM Diagramme
(4) AKF Diagramme

38. Spinifix texture is found in _.
(1) Granite
(2) Gabbro
(3) Komatiite
(4) Syenite

39. Which of the following is a monomineralic rock ?
(1) Rhyolite
(2) Gabbro
(3) Nephelinite
(4) Dunite

40. Monzonite is an intrusive equivalent of
(1) Rhyolite
(2) Latite
(3) Andesite
(4) Basalt

41. Which rock is called “museum of minerals” ?
(1) Lamprophyre
(2) Pegmatite
(3) Monzonite
(4) Gabbro

42. Match the following :
1. Sarnu Dandali a. Basalt
2. Newania b. Granite
3. Mount Abu c. Carbonatite
4. Jhnalawar d. Alkalaine rocks
(1) 1b, 2c, 3d, 4a
(2) 1d, 2c, 3b, 4a
(3) 1c, 2d, 3a, 4b
(4) 1a, 2b, 3c, 4d

43. India’s largest acid volcanic suite is in___ state.
(1) Maharashtra
(2) Rajasthan
(3) Bihar
(4) Tamil Nadu

44. Match the following :
1. Charnockite a. Jalor
2. Anorthosite b. Chennai
3. Nepheline c. Sittampudi syenite
4. Granite d. Kishangarh
(1) 1a, 2c, 3d, 4b
(2) 1c, 2d, 3a, 4b
(3) 1b, 2c, 3d, 4a
(4) 1d, 2b, 8c, 44

45. The thinnest layer of sedimentary rock is called _
(1) Bed
(2) Lamination
(3) Stratum
(4) None of these

46. Thickness of lamination is _.
(1) <1 cm
(2) 1—2cm
(3) 2—10 cm
(4) > 10cm

47. Which of the following is not associated with sedimentation ?
(1) Ripple marks
(2) Rain Prit
(3) Graded bedding
(4) Geodes

48. Which of the following sedimentary structures is not useful for determination of top of sequence ?
(1) Symmetrical ripple marks
(2) Graded bedding
(3) Rain print
(4) Stylolite

49. Degree of roundness of grains in sedimentary rocks depends upon
(1) Size of particles
(2) Hardness of particles
(3) Degree of transportation
(4) All of these

50. Lithification is a ________ process.
(1) pre-depositional
(2) post depositional
(3) syn-depositional
(4) All of these