A. 50-100
B. 100-150
C. 200-400
D. 500-1000
Advertisement
Related Mcqs:
- Cold crushing strength of ordinary fireclay brick is about 950 kg/cm2. On exposure to a temperature of about 1500°C, its crushing strength may come down to as low as ______________ kg/cm2?
- A. 450 B. 250 C. 150 D. 65...
- . Refractoriness under load (RUL) of fireclay bricks (under a load of 2 kg/cm2) is ______________ °C?
- A. 500 B. 1000 C. >1350 D. >2000...
- Cold crushing strength of refractories depends upon its_________________?
- A. Composition B. Texture C. Firing temperature D. All A., B. and C....
- Cold crushing strength of a refractory does not depend upon its ____________________?
- A. Shape B. Composition C. Firing temperature D. Texture...
- Fireclay bricks are never used in the______________?
- A. Beehive oven B. Coke oven walls C. Zinc roaster D. Lead blast furnace...
- Fireclay bricks are not used in the _________________?
- A. Beehive coke oven B. By-product coke oven walls C. Combustion chamber of B.F. stoves D. Coke oven regenerators...
- Fireclay bricks are used in the___________________?
- A. Furnaces allowed to cool frequently B. Flues C. Chimney linings D. All A., B. and C....
- Maximum safe working temperature for fireclay bricks is about __________ °C?
- A. 1150 B. 1300 C. 1450 D. 1550...
- High alumina refractory compared to fireclay bricks have____________________?
- A. Less load bearing capacity B. Less resistance to slag attack C. Low refractoriness D. High resistance to thermal shock and creep...
- Fireclay bricks is not used for lining the__________________?
- A. Cupola B. Gas producer C. Bottom of hot metal mixer D. Roof of open hearth furnace...
Advertisement
