Maximum safe working temperature for fireclay bricks is about __________ °C?

Related Mcqs:

1. Fireclay bricks are never used in the______________?

   A. Beehive oven
   B. Coke oven walls
   C. Zinc roaster
   D. Lead blast furnace

2. Fireclay bricks are not used in the _________________?

   A. Beehive coke oven
   B. By-product coke oven walls
   C. Combustion chamber of B.F. stoves
   D. Coke oven regenerators

3. Fireclay bricks are used in the___________________?

   A. Furnaces allowed to cool frequently
   B. Flues
   C. Chimney linings
   D. All A., B. and C.

4. Cold crushing strength of fireclay bricks is about ______________ kgf/cm2?

   A. 50-100
   B. 100-150
   C. 200-400
   D. 500-1000

5. . Refractoriness under load (RUL) of fireclay bricks (under a load of 2 kg/cm2) is ______________ °C?

   A. 500
   B. 1000
   C. >1350
   D. >2000

6. Colour of fireclay bricks is_________________?

   A. Light buff to reddish buff
   B. Yellow
   C. Black
   D. None of these

7. High alumina refractory compared to fireclay bricks have____________________?

   A. Less load bearing capacity
   B. Less resistance to slag attack
   C. Low refractoriness
   D. High resistance to thermal shock and creep

8. Fireclay bricks is not used for lining the__________________?

   A. Cupola
   B. Gas producer
   C. Bottom of hot metal mixer
   D. Roof of open hearth furnace

9. Fireclay bricks are used in the__________________?

   A. Coke ovens regenerator
   B. Outer lining of L.D. converter
   C. Hearth bottom of blast furnace
   D. Coke oven walls

10. Fireclay bricks are not used in the_____________________?

    A. Blast furnace
    B. Hot blast stove
    C. Cupola
    D. Wall of coke oven