TNPSC Curator Geology Old Question Paper 2010
| TNPSC – Curator & Asst.Curator – Geology – 2010 | |
| Sr. No. | Questions with multiple options |
| 1. | Carlsbad twin is shown by the mineral
(a) Microcline (b) Staurolite (c) Orthoclase (d) Gypsum |
| 2. | Which of the following terms indicates synclinal hill?
(a) Dip (b) Outlier (c) Inlier (d) Strike |
| 3. | The specific gravity of tridymite is
(a) 2.3 (b) 2.7 (c) 2.6 (d) 2.5 |
| 4. | Which of the following shows the effects of tensional forces?
I. Columnar joints II. Cross joints III. Bedding joints IV. Mud cracks Of these: (a) I and III are correct (b) I and II are correct (c) I, II and IV are correct (d) All are correct |
| 5. | Grain size of igneous rock is affected by
(a) Constituents of magma (b) Viscosity of magma (c) Molecular concentration of components (d) All of these |
| 6. | Which one of the following is not a variety of chalcedony?
(a) Opal (b) Plasma (c) Jasper (d) Onyx |
| 7. | Consider the following statements:
I. The velocity of light of a substance is proportional to the reciprocal of the refractive index. II. The velocity of light is higher in substance with higher refractive index III. The refractive index of diamond is 2.42. IV. Glass has higher refractive index when compared with Canada balsam. Of these statements: (a) I and II are correct (b) I and III are correct (c) I, III and IV are correct (d) IV alone is correct |
| 8. | Igneous rocks are mainly derived from which of the following processes of magmas?
(a) Gravity settling (b) Assimilation (c) Diffusion (d) Differentiation |
| 9. | Arrange the minerals according to increasing hardness:
(a) Gypsum – Topaz – Apatite – Quartz (b) Topaz – Quartz – Apatite – Gypsum (c) Gypsum – Apatite – Quartz – Topaz (d) Gypsum – Quartz – Apatite – Topz |
| 10. | Considering the following statements:
I. Hardness is a relative property II. Hardness does not vary in different directions in any mineral III. Gypsum is two times harder than talc IV. Hardness of finger nail is between 1.5 and 2.5 Of these statements: (a) I alone is correct (b) I and II are correct (c) I, II and IV are correct (d) I and IV are correct |
| 11. | Which of the following pairs is incorrect match?
(a) Plumose marking – Thrust faults (b) Offset streams – Strike slip faults (c) Triangular facets – Normal faults (d) Palaeoniologic break – Disconformity |
| 12. | Fluorescence is characteristic of the mineral
(a) Sheelite (b) Sphene (c) Quartz (d) Zircon |
| 13. | The chief mineral replacing the original substance of organisms by petrifaction process includes
(a) Calcite (b) Silica (c) Iron pyrites (d) All of these |
| 14. | Which of the following components of magma could not be determined in the analysis of igneous rocks after solidification?
(a) Silicon (b) Phosphorous (c) Volatile constituents (d) Copper |
| 15. | In the supergene sulphide enrichment the lower unaffected part of the ore body is the
(a) Mesogene zone (b) Hypogene zone (c) Zone of oxidation (d) Supergene sulphide zone |
| 16. | Commercial deposits of evaporate minerals may consists of
(a) Sodium chloride (b) Sypsum (c) Zinc (d) All of these |
| 17. | Some pegmatites are mined for gemstones such as
(a) Olivine (b) Quartz (c) Feldspar (d) Emerland |
| 18. | The type of unconformity in which the older rocks are of plutonic igneous origin is called
(a) Overlap (b) Offlap (c) Disconformity (d) Non-conformity |
| 19. | According to the mode of formation, the deposits of platinum, chromium and nickel ore are
(a) Hydrothermal deposits (b) Residual deposits (c) Magmatic deposits (d) Placer deposits |
| 20. | Which of the following has the highest compressive strength?
(a) Granite (b) Diorite (c) Quartzite (d) Marble |
| Published on – 15th Oct 2021 | |
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