India has the monopoly in the International market in the supply of– (1) Iron (2) Mica (3) Bauxite (4) Copper

India has the monopoly in the International market in the supply of– (1) Iron (2) Mica (3) Bauxite (4) Copper
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(2) Mica Explanation: India produces approximate 90 % of the world's mica. It is an indispensable component of the electrical industry. India accounts for 60 % of mica embarking in international trade.
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The Vindhyan system of rocks is important for the production of [CDS 2011] (a) precious stones and building materials (b) iron ore and manganese (c) bauxite and mica (d) copper and uranium

Description : The Vindhyan system of rocks is important for the production of [CDS 2011] (a) precious stones and building materials (b) iron ore and manganese (c) bauxite and mica (d) copper and uranium

Last Answer : Ans: (a)

Bauxite is the ore of (a) Aluminium (b) Copper (c) Zinc (d) Mica

Description : Bauxite is the ore of (a) Aluminium (b) Copper (c) Zinc (d) Mica

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Match the following: [NDA 2011] Mineral State A. Bauxite 1. Andhra Pradesh B. Mica 2. Orissa C. Copper 3. Madhya Pradesh D. Zinc 4. Rajasthan A B C D (a) 4 1 3 2 (b) 2 1 3 4 (c) 4 3 1 2 (d) 2 3 1 4

Description : Match the following: [NDA 2011] Mineral State A. Bauxite 1. Andhra Pradesh B. Mica 2. Orissa C. Copper 3. Madhya Pradesh D. Zinc 4. Rajasthan A B C D (a) 4 1 3 2 (b) 2 1 3 4 (c) 4 3 1 2 (d) 2 3 1 4

Last Answer : Ans: (b)

What is Khetri in Rajasthan famous for? (1) Copper mines (2) Mica mines (3) Bauxite mines (4) Limestone mines

Description : What is Khetri in Rajasthan famous for? (1) Copper mines (2) Mica mines (3) Bauxite mines (4) Limestone mines

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Description : What is Bailadila famous for? (a) Bauxite (b) Iron ore (c) Copper (d) Coal

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India is the largest producer and exporter of – (1) Cotton (2) Copper (3) Tea (4) Mica

Description : India is the largest producer and exporter of – (1) Cotton (2) Copper (3) Tea (4) Mica

Last Answer : (4) Mica Explanation: India is not only the largest producer but also the largest exporter of mica in the world. Andhra Pradesh is the largest producer of mica (Geography of India by Majid Hussain). It is the second largest producer and exporter of tea after China in the world.

Match the following: [IAS 2007] Mineral Place A. Mica 1. Chindwara B. Diamond 2. Bellary C. Manganese 3. Panna D. Copper 4. Hazaribagh A B C D (a) 1 2 3 4 (b) 1 3 2 4 (c) 4 3 2 1 (d) 4 2 3 1

Description : Match the following: [IAS 2007] Mineral Place A. Mica 1. Chindwara B. Diamond 2. Bellary C. Manganese 3. Panna D. Copper 4. Hazaribagh A B C D (a) 1 2 3 4 (b) 1 3 2 4 (c) 4 3 2 1 (d) 4 2 3 1

Last Answer : Ans: (c)

Anantapur district ill Andhra Pradesh is famous for – (1) Copper (2) Zinc (3) Mica (4) Gold

Description : Anantapur district ill Andhra Pradesh is famous for – (1) Copper (2) Zinc (3) Mica (4) Gold

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The monazite sands on the Kerala coasts, used for generating nuclear energy contain – (1) platinum (2) copper (3) uranium (4) bauxite

Description : The monazite sands on the Kerala coasts, used for generating nuclear energy contain – (1) platinum (2) copper (3) uranium (4) bauxite

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Critical criteria for the location of an aluminium plant in India are the availability of bauxite and: [CDS 1999] (a) coal (b) electricity (c) labour (d) ready market

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Last Answer : (4) Mica Explanation: Sheet mica is used principally in the electronic and electrical industries. Its usefulness in these applications is derived from its unique electrical and thermal insulating properties and ... it is a good electrical insulator at the same time as being a good thermal conductor.

This group of alumino-silicate minerals is widely used in making electrical insulators (1) Bauxite (2) Chromite (3) Manganese (4) Mica

Description : This group of alumino-silicate minerals is widely used in making electrical insulators (1) Bauxite (2) Chromite (3) Manganese (4) Mica

Last Answer : Mica

Ankaleshwar in India is known for the production of: [NDA 2002] (a) bauxite (b) coal (c) iron ore (d) petroleum

Description : Ankaleshwar in India is known for the production of: [NDA 2002] (a) bauxite (b) coal (c) iron ore (d) petroleum

Last Answer : Ans: (d)

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Description : Which of the following is false? (a) Mica is usually found in metamorphic and igneous rocks (b) Aluminium has the advantage over iron as it is resistant to corrosion (c) line is mostly used in galvanising iron and steel goods (d) Manganese is largely used in making fertilizers

Last Answer : Ans: (d)

Jadugoda mines are famous for – (1) iron ore (2) mica deposits (3) gold deposits (4) uranium deposits

Description : Jadugoda mines are famous for – (1) iron ore (2) mica deposits (3) gold deposits (4) uranium deposits

Last Answer : (4) uranium deposits Explanation: The Jaduguda Mine is a uranium mine in Jaduguda village in the Purbi Singhbhum district of the Indian state of Jharkhand. It commenced operation in 1967 and ... 1951. As of March 2012 India only possesses two functional uranium mines, including the Jaduguda Mine.

Which of the following is an ore of iron? (a) Bauxite (b) Haematite (c) Dolomite (d) Alunite

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Last Answer : Ans: (b)

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Description : The material for commutator brushes is generally (a) mica (b) copper (c) cast iron (d) carbon

Last Answer : Ans: d

The field coils of D.C. generator are usually made of (a) mica (b) copper (c) cast iron (d) carbon

Description : The field coils of D.C. generator are usually made of (a) mica (b) copper (c) cast iron (d) carbon

Last Answer : Ans: b (b) copper

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Description : What is mainly obtained from bauxite? (a) Copper (b) Aluminium (c) Iron (d) Gold

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Which one of the following minerals is found in pure form? (1) Iron (2) Copper (3) Bauxite (4) Manganese

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Last Answer : (2) Copper Explanation: Copper is one of very few elements that are found in essentially pure form in nature. But the bulk of the copper resource is found in other minerals.

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Description : Bauxite is an ore of-----? A. copper B. zinc C. aluminium (Answer) D. iron

Last Answer : C. aluminium (Answer)

Which one of the following minerals is found in pure form? (1) Iron (2) Copper (3) Bauxite (4) Manganese

Description : Which one of the following minerals is found in pure form? (1) Iron (2) Copper (3) Bauxite (4) Manganese

Last Answer : Copper

In the **** industry, a few large brewers supply the majority of the market. The brewing industry is an example of which of the following competitive structures: A)Monopoly B)Oligopoly C)Monopolistic Competition D)Perfect Competition E)Monopsony

Description : In the beer industry, a few large brewers supply the majority of the market. The brewing industry is an example of which of the following competitive structures: A)Monopoly B)Oligopoly C)Monopolistic Competition D)Perfect Competition E)Monopsony

Last Answer : B)Oligopoly

Where in India is mica mined? (a) Nasirabad (Rajasthan) (b) Gaya (Bihar) (c) Nellore (Andhra Pradesh) (d) All the above

Description : Where in India is mica mined? (a) Nasirabad (Rajasthan) (b) Gaya (Bihar) (c) Nellore (Andhra Pradesh) (d) All the above

Last Answer : Ans: (d)

Which one of the following statements is NOT correct? [IAS 2003] (a) Black cotton soil of north-west India was formed by the weathering of basaltic lava rocks (b) Sedimentary rocks are distinguished from other types of rocks by the presence of distinct layers (c) Granite has large crystals of quartz, feldspar and mica in it (d) A metamorphic rock is softer and less compact than its original type

Description : Which one of the following statements is NOT correct? [IAS 2003] (a) Black cotton soil of north-west India was formed by the weathering of basaltic lava rocks (b) Sedimentary rocks are distinguished ... feldspar and mica in it (d) A metamorphic rock is softer and less compact than its original type

Last Answer : Ans: (d)

Largest Mica deposits are in - (1) South Africa (2) India (3) USA (4) Australia

Description : Largest Mica deposits are in - (1) South Africa (2) India (3) USA (4) Australia

Last Answer : (2) India Explanation: India happens to be the largest producer of mica blocks in the world. India produces about 90 per cent of the world’s mica. India accounts for 60 per cent of mica embarking in international trade.

The largest producer of world's mica is - (1) U.S.A. (2) U.K. (3) China (4) India

Description : The largest producer of world's mica is - (1) U.S.A. (2) U.K. (3) China (4) India

Last Answer : (3) China Explanation: The largest mica producer in the world in 2018 was China, producing about 80,000 metric tons of mica. Following China was Finland, which produced 55,000 metric tons that year.

In the world, India tops in the production of – (1) Nickel (2) Uranium (3) Mica (4) Manganese

Description : In the world, India tops in the production of – (1) Nickel (2) Uranium (3) Mica (4) Manganese

Last Answer : (3) Mica Explanation: Mica is produced in huge proportion in India. In fact, India is one of the leading suppliers of mica to the world. India alone accounts fora major portion ... indispensable component of the electrical industry. India accounts for 60 % of mica embarking in international trade.

India leads the world in the export of – (1) coffee (2) cotton (3) manganese (4) mica

Description : India leads the world in the export of – (1) coffee (2) cotton (3) manganese (4) mica

Last Answer : (4) mica Explanation: India is one of the leading suppliers of mica to the world. India alone accounts fora major portion of the world's export of block mica and mica splitting. India produces approximate 90 % of the world's mica.

India is the largest producer of – (1) cotton (2) rice (3) mica (4) tea

Description : India is the largest producer of – (1) cotton (2) rice (3) mica (4) tea

Last Answer : Explanation: India produces approximate 90 % of the world's mica. It is an indispensable component of the electrical industry. India accounts for 60 % of mica embarking in international trade.

Hazaribagh district in Jharkhand has rich deposits of (a) gold (b) mica (c) gypsum (d) lead

Description : Hazaribagh district in Jharkhand has rich deposits of (a) gold (b) mica (c) gypsum (d) lead

Last Answer : Ans: (b)

Mica is found in which one of the following pairs of rocks? (1) Slate- Sandstone (2) Schist-Gneiss (3) Limestone-Sandstone (4) Shale- Limestone

Description : Mica is found in which one of the following pairs of rocks? (1) Slate- Sandstone (2) Schist-Gneiss (3) Limestone-Sandstone (4) Shale- Limestone

Last Answer : (2) Schist-Gneiss Explanation: The schists constitute a group of medium-grade metamorphic rocks, chiefly notable for the preponderance of lamellar minerals such as micas, chlorite, talc, ... is a crystalline metamorphic rock, mostly composed of more than 50% tabular and elongated minerals.

Which of the following statements is correct? (1) Natural gas is found in Dharwar rock formation (2) Mica is found in Kodarma (3) Cuddapah series is famous for diamonds (4) Petroleum reserves are found in Aravali hills

Description : Which of the following statements is correct? (1) Natural gas is found in Dharwar rock formation (2) Mica is found in Kodarma (3) Cuddapah series is famous for diamonds (4) Petroleum reserves are found in Aravali hills

Last Answer : (2) Mica is found in Kodarma Explanation: The British Geological Survey reported that as of 2005, Kodarma district in Jharkhand state in India had the largest deposits of mica in the world. China was ... with almost a third of the global share, closely followed by the US, South Korea and Canada.

Which of the following is a non-metallic mineral? (a) Bauxite (b) Magnesium (c) Gypsum (d) Manganese

Description : Which of the following is a non-metallic mineral? (a) Bauxite (b) Magnesium (c) Gypsum (d) Manganese

Last Answer : Ans: (c)

The Jawar mines of Udaipur are famous for (a) Marble (b) Zinc (c) Granite (d) Bauxite

Description : The Jawar mines of Udaipur are famous for (a) Marble (b) Zinc (c) Granite (d) Bauxite

Last Answer : Ans: (b)

Largest producer of Bauxite in the world is - (1) U.S.A. (2) Jamaica (3) Chile (4) Australia

Description : Largest producer of Bauxite in the world is - (1) U.S.A. (2) Jamaica (3) Chile (4) Australia

Last Answer : (4) Australia Explanation: The world's largest producers of natural diamonds are Russia, Congo and Botswana, all together accounting for 60% of the global diamond production. The governmentrun super-major ALROSA accounts for approximately 95% of all Russian diamond production.

Which of the following rock formations resulted in Eastern Ghats? (1) Charnockites, bauxite, granite gneiss and quartzite rock (2) Khondalites, bauxite, granite gneiss, metamorphic gneisses and quartzite rock (3) Charnockites, khondalites, metamorphic gneisses and quartzite rock (4) Charnockites, granite gneiss, quartzite rock, khondalites, metamorphic gneisses

Description : Which of the following rock formations resulted in Eastern Ghats? (1) Charnockites, bauxite, granite gneiss and quartzite rock (2) Khondalites, bauxite, granite gneiss, metamorphic gneisses ... and quartzite rock (4) Charnockites, granite gneiss, quartzite rock, khondalites, metamorphic gneisses

Last Answer : (4) Charnockites, granite gneiss, quartzite rock, khondalites, metamorphic gneisses Explanation: The Eastern Ghats are made up of charnocicites, granite gneiss, khondalites, metamorphic gneisses and quartzite ... range. Limestone, bauxite and iron ore are found in the Eastern Ghats hill ranges.

Tummalapalli in Andhra Pradesh has recently come on the world map for its largest (1) Uranium deposits (2) Tungsten deposits (3) Coal deposits (4) Bauxite ore deposits

Description : Tummalapalli in Andhra Pradesh has recently come on the world map for its largest (1) Uranium deposits (2) Tungsten deposits (3) Coal deposits (4) Bauxite ore deposits

Last Answer : (1) Uranium deposits Explanation: Tummalapalle Mine is a uranium mine in Tumalapalli village located in Kadapa of the Indian state of Andhra Pradesh. It has one of the largest reserves of uranium in the world.

Etched or burned bands on the contact faces of the brushes in a direct current generator can be caused by ____________. A. high mica segments B. copper drag on the commutator C. brushes improperly positioned D. copper embedded in the brushes

Description : Etched or burned bands on the contact faces of the brushes in a direct current generator can be caused by ____________. A. high mica segments B. copper drag on the commutator C. brushes improperly positioned D. copper embedded in the brushes

Last Answer : Answer: C

Which of the listed pairs of materials make the best insulators? A. copper and aluminum B. glass and mica C. dry air and a vacuum D. doped silicon and germanium

Description : Which of the listed pairs of materials make the best insulators? A. copper and aluminum B. glass and mica C. dry air and a vacuum D. doped silicon and germanium

Last Answer : Answer: B

In addition to undercutting the mica, proper maintenance of a D.C. motor's commutator includes _______________. A. side-cutting the copper segments and insulating the slots B. coating the copper surface with light machine oil for the first four hours of operation C. baking the armature in an oven at a maximum of 95°C for not over 8 hours D. all of the above

Description : In addition to undercutting the mica, proper maintenance of a D.C. motor's commutator includes _______________. A. side-cutting the copper segments and insulating the slots B. coating the copper surface with light machine ... in an oven at a maximum of 95°C for not over 8 hours D. all of the above

Last Answer : Answer: A

The mica used in the commutators of DC machinery is _____________. A. harder than copper B. softer than copper C. the same hardness as the copper D. softer than copper but wears away at a slower rate

Description : The mica used in the commutators of DC machinery is _____________. A. harder than copper B. softer than copper C. the same hardness as the copper D. softer than copper but wears away at a slower rate

Last Answer : Answer: A

In a commutator (a) copper is harder than mica (b) mica and copper are equally hard (c) mica is harder than copper (d) none of the above

Description : In a commutator (a) copper is harder than mica (b) mica and copper are equally hard (c) mica is harder than copper (d) none of the above

Last Answer : Ans: c

The cost producing iron in India is considerably lower than in other countries because of (1) low wage of miners (2) large supply of iron ore (3) large supply of coal (4) coal and iron ore are found in the same area

Description : The cost producing iron in India is considerably lower than in other countries because of (1) low wage of miners (2) large supply of iron ore (3) large supply of coal (4) coal and iron ore are found in the same area

Last Answer : (4) coal and iron ore are found in the same area Explanation: Brazil, India, South Africa and China are highly competitive steel production locations. Brazil has vast reserves of high quality iron ... Bengal, Bihar, Orissa, and Madhya Pradesh, has been the natural nerve-centre of this industry.

What is the principal ore of aluminium? (1) Dolomite (2) Copper (3) Lignite (4) Bauxite

Description : What is the principal ore of aluminium? (1) Dolomite (2) Copper (3) Lignite (4) Bauxite

Last Answer : (4) Bauxite Explanation: Bacodte is an aluminium ore and is the main source of aluminium. This form of rock consists mostly of the minerals gibbsite, boehmite , and diaspore , in a mixture ... it was first recognised as containing aluminium and named by the French geologist Pierre Berthier in 1821.

Which one of the following pairs is NOT correctly matched? (1) Haematite : Copper (2) Bauxite : Aluminium (3) Monazite : Thorium (4) Pitchblende : Uranium

Description : Which one of the following pairs is NOT correctly matched? (1) Haematite : Copper (2) Bauxite : Aluminium (3) Monazite : Thorium (4) Pitchblende : Uranium

Last Answer : (1) Haematite : Copper Explanation: Haematite is the mineral form of iron oxide (Fe2O3), one of several iron oxides. It is mined as the main ore of iron. Hematite is harder than pure iron, but much more brittle.

Which of the following minerals is a source of copper? w) Bauxite (pron: box-ite) x) Hematite y) Malachite z) Galena

Description : Which of the following minerals is a source of copper? w) Bauxite (pron: box-ite) x) Hematite y) Malachite z) Galena

Last Answer : ANSWER: Y -- MALACHITE

The metal extracted from Bauxite is : (1) Silver (2) Copper (3) Manganese (4) Aluminum

Description : The metal extracted from Bauxite is : (1) Silver (2) Copper (3) Manganese (4) Aluminum

Last Answer : Aluminum