Question # 1

In anthracite coal, pure carbon content is:

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50 percent

25 percent

80 percent

92 to 95 percent

Among all categories lignite coal is:

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Most superior

Most inferior

Not good quality

Not superior quality

World's huge coal reserves of northern hemisphere are located:

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Between 35°-50° north latitude

Between 5°-10° north latitude

Between 80°-90° north latitude

Between 10°-20° latitude

In 18th century, due to use of petroleum and natural gas:

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Demand of coal became less

No change took place in use of coal

Coal demand increased

Coal mining was almost stopped

In the continent of South America, coals reserves are:

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20 percent of the total reserves

About 30 percent of total reserves

80 percent of the total reserves

Only 1.6 percent of total reserves

Quality of coal depends upon:

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Carbon content of coal

Hydrogen content of coal

sulphur content of coal

Silicon content of coal

Coal, petroleum, natural gas, nuclear energy and solar energy are:

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Important means of energy

Not means of energy

Nominal means of energy

Unimportant means of energy

If we continue to use coal at this rate, its reserves are enough for:

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50 years only

100 years

1000 years

300-400 years

In bituminous coal, carbon content may be:

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20 percent

50 percent

60-80 percent

30 percent

In the decade of 1970, due to use of coal in thermal electricity production:

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A dramatic increase took place in use of coal

A small increase took place in use of coal

No change took place in use of coal

Demand of coal decreased slowly

In north-eastern China, Fashon coal mines are:

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Oldest coal mines in China

Recent coal mines in China

Largest coal mines in China

Deepest coal mines in China

World's 80percent coal production consists of:

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Bituminous coal

Lignitecoal

Anthracitecoal

Browncoal

Coal reserves of Europe and Russian Federation are, world's total reserves:

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20 percent

30percent

50percent

44percent

In the world, out of total energy, 29.2 percent is being produced from:

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Coal

Petroluem

Natural gas

Hydroelectricity

World's largest producer of coal is:

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China

Canada

United Kingdom

United States of America

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