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.Management Sciences
A. 5
B. 20
C. 40
D. 55
Related Mcqs:
- Graphite or carbon refractories______________________?
- A. Exhibit wetting characteristics B. Should be used in neutral or reducing atmosphere C. Exhibit high shrinkage on thermal treatment D. Are not resistant to corrosion by slag...
- Which is not a basic refractory ?
- A. Chrome magnesite B. Magnesite C. Dolomite D. Silicon carbide...
- Grog__________________?
- A. Contains both alumina and silica B. Is crushed firebrick C. Is a non-plastic material D. All A., B. and C....
- To resist spalling tendency, a refractory should have________________?
- A. Greater diffusivity B. Low specific heat C. Low thermal co-efficient of expansion D. All A., B. and C....
- Dolomite bricks have good resistance to attack by_____________________?
- A. Molten steel B. Iron oxide C. Lime slag D. None of these...
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