A. Superduty fireclay
B. Silica
C. Chromite
D. None of these
Advertisement
Related Mcqs:
- Roof of a basic open hearth furnace is lined with ______________ bricks?
- A. Silica B. Fireclay C. Dolomite D. Magnesite...
- Outer combustion chamber of blast furnace stove is lined with _____________ bricks?
- A. Fireclay B. Silica C. Chrome magnesite D. Zirconia...
- 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....
- Which property is important for bricks used in the combustion chamber & dome of blast furnace stoves ?
- A. High refractoriness B. High resistance to spalling C. High strength and density D. All A., B. and C....
- Which of the following bricks should not be used, if the furnace is to be used intermittently ?
- A. Firebricks B. Silica bricks C. Silicon carbide bricks D. Sillimanite...
- Hot blast main (carrying air at 1000°C) in blast furnace are lined with ______________ bricks?
- A. Silica B. Fireclay C. Magnesite D. Zirconia...
- 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...
- Basic bricks are not made of ___________________?
- A. Fireclay B. Magnesite C. Forsterite D. Chromite...
- Because of its very high refractoriness of the order of __________ °C, silicon carbide refractories are used in zinc smelting furnace, muffle furnace and for supporting the wares in tunnel kilns ?
- A. 1800 B. 2200 C. 2400 D. 2700...
- Bottom of basic open hearth furnace are constructed of__________________?
- A. Dead burnt magnesite ramming mass B. Porous fireclay bricks C. Semi-silica bricks D. Silicon carbide bricks...
Advertisement
