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.Management Sciences
A. 1150
B. 1300
C. 1450
D. 1550
Related Mcqs:
- Silica bricks are attacked by basic slags at high temperature. Which of the following is not used solely as a binding material ?
- A. Aluminium phosphate B. Water C. Lime D. Plaster of Paris...
- Thermal spalling mainly occurs during _____________ of furnaces?
- A. Cooling down B. Warming up C. Both A. & B. D. Neither A. nor B....
- Resistance to slag attack of a refractory _____________________?
- A. Depends on the nature of slag & refractory B. Decreases at higher temperature C. Decreases, if defective joints & cracks exist in the refractory D. All A., B. and C....
- Refractoriness under load (RUL) is the most important property for the refractory bricks_________________?
- A. At the hearth bottom of the furnace on which stock is placed B. Used for furnace insulation C. Used in the roof of the furnace D. None of these...
- Addition of zircon to silica refractory brick improves its_____________________?
- A. Crushing strength B. Resistance to slag attack C. Both A. and B. D. Neither A. nor B....
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