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.Management Sciences
A. Contains both alumina and silica
B. Is crushed firebrick
C. Is a non-plastic material
D. All A., B. and C.
Related Mcqs:
- Carbon refractories have very high __________________?
- A. Wetting characteristics B. Refractoriness C. Thermal conductivity D. Both B. and C....
- Ferromagnetic ceramic material is not used in the__________________?
- A. Thermal insulation B. Transformers C. Magnetic switches D. Television sets...
- Electrical resistor bars are made of _______________?
- A. Silicon carbide B. Alumina C. Zirconia D. Graphite...
- Sillimanite (Al2O3.SiO2) refractory, which is a neutral refractory, is not used in________________?
- A. Pottery furnace B. Glass melting furnace C. Crucibles D. Gas retorts...
- The maximum linear expansion of silica bricks during firing is about ______________ percent?
- A. 0.5 B. 1 C. 2 D. 3.5...
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