_____________ nozzles are used in continuous casting of steel?

Related Mcqs:

1. 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

2. 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

3. 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

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

   A. Soaking pit
   B. Blast furnace
   C. L.D. converter
   D. Coke ovens

5. Vacuum steel degassing units are lined with__________________?

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

6. Firing temperature of magnesite bricks is about _____________ °C?

   A. 800-1000
   B. 1000-1200
   C. 1600-1800
   D. 2400-2600

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

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

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

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

9. Sillimanite is a _____________ refractory?

   A. Basic
   B. Neutral
   C. High alumina
   D. Insulating

10. Refractoriness under loads (RUL) is quite close to the fusion temperature (PCE) for _____________ bricks?

    A. Fireclay
    B. Silica
    C. Dolomite
    D. Very low alumina