Question # 1

Nippon-Kokan steel mill located in Japan:

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Is world's largest steel mill

Is Japan's important steel mill

Is China's largest steel mill

Is not world's largest steel mill

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

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From 1900-1969

1900-1950

1900-2000

Still ranked first

For making one ton stainless steel:

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14 pounds manganese is required

No manganese is required

100 poundsmanganese is required

Small amount ofmanganese is required

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

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

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

According to Alfred Weber's theory, most suitable place for Iron & steel industry is:

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Where coal is easily availabe

Where Pig Iron is easily available

Where limestone is easily available

Where coal & calcium carbonate is available

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

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°

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

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Anshan

Mukden

Wuhan

Chunpking

The electric process furnaces are installed in world's:

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High backward countries

In those countries where electricity in cheap and surplus

Where electricity production is normal

Where electricity is costly

Iron refinement process of Bessemer, Sir Henary Bessemer:

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Introduce in 1800

Introduce in 1900

Introduce in 1855

Introduce in 1950

U.S.A's largest Iron & steel center is located at:

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Pittsburg

Tolado

Indiana

Adirondacks

In which year, Russia got first position in Iron & steel production:

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1950

1970

1990

1850

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