Question # 1

Is Wrought Iron free from all impurities?

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Not free from all impurities

Free up to some extend

Absolutely free from all impurities

Cannot purify up to 100%

In Manchurian Region, China's oldest Iron & steel manufacturing centre is:

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Anshan

Mukden

Wuhan

Chunpking

Where does locate the Sao-Paulo's Iron & steel center:

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Argentina

Brazil

Venezuela

Chile

During refinement the temperature of Open-Hearth furnace can be:

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Increase up to 1000 C°

Increased up to 2000 C°

Increased up to 1650 C°

Increased up to 500 C°

Where does India's biggest/largest Iron & steel center located?

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Jamshedpur

Durgapur

Bhadravati

Bhilai

For preparation of one ton stainless steel:

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Small quantity of water is required

Large quantity of water is required

65 thousands gallon water is required

There is no need of water

World's largest Iron & steel manufacturing mill is in:

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China

U.S.A

Japan

Russia

Pig Iron refined from Iron ore contains:

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Only 10 percent impurities

No impurities

To much impurities

Only 5 percent impurities

About 85 percent steel refinement work is done by:

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11 countries

20 countries

50 countries

100 countries

Brazil's Iron ore deposits are located at:

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Santa Catarnia

Minas-Geraes

Sao-Paulo

Curumba

With the help of Bessemer furnace from Pig Iron we:

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Cannot refine high quality steel

Cannot free Pig Iron from phosphorous

Cannot free from sulphur

Could free from all impurities

In Iron & steel Industry, U.S.A ranked first

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From 1900-1969

1900-1950

1900-2000

Still ranked first

With the establishment of Blast furnaces:

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Revolutionary changes took place in Iron ore refinement

No prominent change took place

Iron refinement become slow

Minor change took place in Iron refinement

For smelting (refinement) of one tone of Iron ore:

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10 ton coal is required

Only 5 ton coal is required

2 ton coal is required

Only small amount of coal is required

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