A. Superduty fireclay
B. High alumina
C. Silica
D. Carborundum
Advertisement
Related Mcqs:
- Upper portion of hot metal mixer are lined with mullite bricks, which helps in resisting the_________________?
- A. Washing action of metal B. Corrosion by layer of slag C. Both A. & B. D. Neither A. nor B....
- Hot blast main (carrying air at 1000°C) in blast furnace are lined with ______________ bricks?
- A. Silica B. Fireclay C. Magnesite D. Zirconia...
- Outer combustion chamber of blast furnace stove is lined with _____________ bricks?
- A. Fireclay B. Silica C. Chrome magnesite D. Zirconia...
- Slide gates in teeming laddie used for steel pouring in ingot moulds is lined with _____________ bricks?
- A. Bakelite impregnated or fused periclase B. Silica C. Semi-silica D. Fireclay...
- Bauxite calcining rotary kilns are lined with ________________ bricks?
- A. Fireclay B. Carbon C. 85% alumina D. Corundum...
- Roof of a basic open hearth furnace is lined with ______________ bricks?
- A. Silica B. Fireclay C. Dolomite D. Magnesite...
- Semi-silica bricks compared to silica bricks have_______________?
- A. Less fusion point B. Better spalling resistance C. Both A. and B. D. Neither A. not B....
- Refractory bricks with lower permeability is produced by using __________________?
- A. Higher firing temperature B. Higher moulding pressure C. Finer grog size D. All A., B. and C....
- Refractory bricks having lower porosity have_________________________?
- A. High insulating properties B. Low heat capacity C. Low thermal conductivity D. Greater strength...
- Magnesite bricks have poor resistance to attack by _____________ slag?
- A. Lime B. Basic C. Acid D. None of these...
Advertisement
