Which furnace consumes maximum refractory annually in an integrated steel plant ?

Related Mcqs:

1. Which of the following consumes the maximum tonnage of refractories annually in an integrated steel plant ?

   A. Soaking pits
   B. Reheating furnace
   C. L.D. converter
   D. Rotary lime kiln

2. Sillimanite (Al2O3.SiO2) refractory, which is a neutral refractory, is not used in________________?

   A. Pottery furnace
   B. Glass melting furnace
   C. Crucibles
   D. Gas retorts

3. 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

4. Maximum water percentage in refractory mix meant for hand moulding may be as high as _____________ percent?

   A. 2-3
   B. 5-7
   C. 7-12
   D. 14-20

5. Maximum alumina content in high alumina refractory can be as high as _____________ percent?

   A. 30
   B. 50
   C. 70
   D. 90

6. A steel member used in the furnace construction to take the thrust of the brickwork is called___________________?

   A. Buckstay
   B. Breast wall
   C. Armouring
   D. Baffle

7. Which of the following is not an acidic refractory?

   A. Silica bricks
   B. Fireclay bricks
   C. Bauxite bricks
   D. Magnesia bricks

8. Which is not an alumino-silicate refractory ?

   A. Fireclay bricks
   B. Mullite bricks
   C. Tar dolomite bricks
   D. High alumina bricks

9. High porosity refractory bricks have _______________?

   A. Poor resistance to the penetration of molten slag, metal & flue gases
   B. Poor heat conductivity & low strength
   C. Better thermal spalling resistance
   D. All A., B. and C.

10. Which is a basic refractory ?

    A. Fireclay
    B. Silica
    C. Chrome magnesite
    D. None of these