| 1 |
According to Alfred Weber's theory, most suitable place for Iron & steel industry is: |
Where coal is easily availabe
Where Pig Iron is easily available
Where limestone is easily available
Where coal & calcium carbonate is available
|
| 2 |
The electric process furnaces are installed in world's: |
High backward countries
In those countries where electricity in cheap and surplus
Where electricity production is normal
Where electricity is costly
|
| 3 |
Is Wrought Iron free from all impurities? |
Not free from all impurities
Free up to some extend
Absolutely free from all impurities
Cannot purify up to 100%
|
| 4 |
With the help of Bessemer furnace from Pig Iron we: |
Cannot refine high quality steel
Cannot free Pig Iron from phosphorous
Cannot free from sulphur
Could free from all impurities
|
| 5 |
During refinement the temperature of Open-Hearth furnace can be: |
Increase up to 1000 C°
Increased up to 2000 C°
Increased up to 1650 C°
Increased up to 500 C°
|
| 6 |
For making one ton stainless steel: |
14 pounds manganese is required
No manganese is required
100 poundsmanganese is required
Small amount ofmanganese is required
|
| 7 |
For smelting (refinement) of one tone of Iron ore: |
10 ton coal is required
Only 5 ton coal is required
2 ton coal is required
Only small amount of coal is required
|
| 8 |
About 85 percent steel refinement work is done by: |
11 countries
20 countries
50 countries
100 countries
|
| 9 |
Pig Iron refined from Iron ore contains: |
Only 10 percent impurities
No impurities
To much impurities
Only 5 percent impurities
|
| 10 |
Iron refinement process of Bessemer, Sir Henary Bessemer: |
Introduce in 1800
Introduce in 1900
Introduce in 1855
Introduce in 1950
|
| 11 |
With the establishment of Blast furnaces: |
Revolutionary changes took place in Iron ore refinement
No prominent change took place
Iron refinement become slow
Minor change took place in Iron refinement
|
| 12 |
Before 1350 A.D, Iron & Steel work was done: |
By electric furnaces
By atomic furnaces
By rock coal furnaces
By wood coal furnaces
|
| 13 |
Iron Age started in the world in: |
1500 B.C
Many thousands years ago
Eighteenth century
Twentieth century
|
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