This set of Basic Engineering Geology Questions and Answers focuses on “Mineral Resources of India – 02”.
1. Asbestos is a fibrous variety of ___________
a) Chrysotile
b) Cristile
c) Christile
d) Christine
View Answer
Explanation: The common asbestos is actually a fibrous variety of mineral Chrysotile-hydrous silicate of magnesium.
2. The amphibole varieties are found in which state?
a) Karnataka
b) Bihar
c) Orissa
d) Rajasthan
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Explanation: The amphibole varieties anthophyllite and tremolite, are produced in Udaipur and Durgapur districts.
3. Which mineral is used in paints, rubber textiles?
a) Asbestos
b) Barytes
c) Corundum
d) Quartz
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Explanation: The mineral Baryte finds use in paints, rubber textiles and also in oil well drilling muds besides in chemical industry.
4. Which state produces largest amount of barytes?
a) Kerala
b) Andhra Pradesh and Telangana
c) Karnataka
d) Orissa
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Explanation: Andhra Pradesh is presently the largest producer of barytes in our country. The mineral occurs in limestones spread over districts of Kuddapah, Kurnool and Anantapur.
5. The pure variety of corundum is __________
a) Emerald and ruby
b) Ruby and Sapphire
c) Sapphire and diamond
d) Ruby and Coral
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Explanation: A high grade natural abrasive- corundum. The mineral finds use in grinding wheels. Its pure varieties form gems- the ruby and sapphire.
6. Dolomite is not used for/as __________
a) Flux
b) Refractory material
c) Source in special cements
d) Precious gemstones
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Explanation: Dolomite is carbonate rock of wide occurrence in India and elsewhere and also with wide applications as a flux in metallurgy, as a refractory material and as source material in special cement.
7. Which mineral is used in manufacture of Sorel cement?
a) Dolomite
b) Magnesite
c) Manganese
d) Iron
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Explanation: Magnesite is one of the important refractory materials. Other uses of magnesite include in the manufacture of a special cement called Sorel cement, in chemical industry and also as a source of metal magnesium.
8. Mica is of which origin?
a) Igneous
b) Sedimentary
c) Metamorphic
d) Erosional
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Explanation: The mica mineral is of an igneous origin and commonly occurs in pegmatites in the form of thick sheets and masses.
9. Gypsum commonly occurs as a mineral of which origin?
a) Primary
b) Secondary
c) Tertiary
d) Quarternary
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Explanation: Gypsum commonly occurs as a mineral of secondary origin associated with other sedimentary formations in the form of intervening layers, stringers and extended beds.
10. The only producer of diamond in India is __________
a) Rajasthan
b) Madhya Pradesh
c) Bihar
d) Orissa
View Answer
Explanation: In India, diamonds have been produced only in Madhya Pradesh from the well-known Panna diamond mines. Here the mineral occurs in volcanic pipes mixed with primary magmatic rocks and also from the conglomerate deposits around the hill.
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