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.Management Sciences
A. 800-1000
B. 1000-1200
C. 1600-1800
D. 2400-2600
Related Mcqs:
- Fusion point of an acidic refractory material is________________?
- A. Increased by the addition of basic oxides B. Reduced by the addition of basic oxides C. Not affected by the addition of basic oxides D. Always more than 2500°C...
- Ferromagnetic ceramic material is not used in the__________________?
- A. Thermal insulation B. Transformers C. Magnetic switches D. Television sets...
- Firing temperature is minimum (1250-1400 °C) for _______________ bricks?
- A. Fireclay B. Direct bonded basic C. Silica D. Magnesite...
- Magnesite refractories have low resistance to___________________?
- A. Attack by basic slag B. Abrasion C. Disintegration on sudden change of temperature D. Both B. and C....
- Highest melting (m.p = 3070°C) oxide refractory is__________________?
- A. Alumina B. Thoria C. Zirconia D. Magnesia...
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