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21
Select the correct statement for a blast furnace.
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Answer: Option B
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22
The tuyeres of a blast furnace is made of . . . . . . . .
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Answer: Option D
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23
The sintering of iron are is predominantly a
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Answer: Option A
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24
The hearth line is made up of
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Answer: Option B
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25
Sponge iron contains . . . . . . . .
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Answer: Option D
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26
Cement can be manufactured from . . . . . . . .
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Answer: Option D
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27
. . . . . . . . is a neutral flux.
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Answer: Option C
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28
Iron is
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Answer: Option D
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29
The temperature of the hearth is . . . . . . . .
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Answer: Option D
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30
The top portion of the blast furnace is called . . . . . . . .
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Answer: Option C
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