24) The temperature in the upper part of the blast furnace (zone of reduction) is ______ that of the middle part
Answer is:
less than
Related Engineering Materials MCQ with Answers
Answer is:
supplies heat to reduce ore and melt the iron
Answer is:
forms a slag by combining with impurities
Answer is:
all of the above
Explanation:
The slag from the blast furnace
* is used as a ballast for rail road
* is mixed with tar for road making
* consists of calcium, aluminum and ferrous silicates
