Slide gates in teeming laddie used for steel pouring in ingot moulds is lined with _____________ bricks?

Related Mcqs:

1. Lower part of hot metal mixer are lined with _____________ bricks?

   A. Superduty fireclay
   B. High alumina
   C. Silica
   D. Carborundum

2. Outer combustion chamber of blast furnace stove is lined with _____________ bricks?

   A. Fireclay
   B. Silica
   C. Chrome magnesite
   D. Zirconia

3. Bauxite calcining rotary kilns are lined with ________________ bricks?

   A. Fireclay
   B. Carbon
   C. 85% alumina
   D. Corundum

4. Roof of a basic open hearth furnace is lined with ______________ bricks?

   A. Silica
   B. Fireclay
   C. Dolomite
   D. Magnesite

5. 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.

6. Hot blast main (carrying air at 1000°C) in blast furnace are lined with ______________ bricks?

   A. Silica
   B. Fireclay
   C. Magnesite
   D. Zirconia

7. 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.

8. Vacuum steel degassing units are lined with__________________?

   A. Silica bricks
   B. Low duty firebricks
   C. High alumina bricks
   D. Graphite blocks

9. Roof of a basic electric furnace is made of _____________ bricks?

   A. Superduty fireclay
   B. Silica
   C. Chromite
   D. None of these

10. Maximum apparent porosity of magnesite bricks is about _____________ percent?

    A. 8
    B. 24
    C. 44
    D. 58