Cold crushing strength of refractories depends upon its_________________?

Related Mcqs:

1. Cold crushing strength of ordinary fireclay brick is about 950 kg/cm2. On exposure to a temperature of about 1500°C, its crushing strength may come down to as low as ______________ kg/cm2?

   A. 450 B. 250 C. 150 D. 65...

2. Cold crushing strength of a refractory does not depend upon its ____________________?

   A. Shape B. Composition C. Firing temperature D. Texture...

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

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

4. Spalling tendency of refractories is reduced by increasing its_________________?

   A. Porosity B. Specific gravity C. Thermal conductivity D. Strength...

5. Faster rate of drying of moulded refractories results in high _____________ of refractories?

   A. Green strength B. Voids C. Shrinkage D. Both B. and C....

6. Crushing strength of a refractory____________________?

   A. Increases with rise in service temperature B. Decreases with rise in service temperature C. Is unaffected with change in service temperature D. Decreases with increase in porosity...

7. RUL of refractories depends on the _____________________?

   A. Chemical composition B. Physical structure C. Presence of impurities like iron & alkali D. All A., B. and C....

8. Pyrometric cone equivalent (PCE) of a refractory is the measure of its_________________?

   A. Spalling resistance B. Fusion point C. Resistance to slag penetration D. Resistance to carbon monoxide attack...

9. PCE value (Segar cone) of Superduty refractories is more than 33, which is equivalent to a temperature of ____________ °C?

   A. 1520 B. 1630 C. 1670 D. 1730...

10. The largest consumer of refractories is the _______________ industry?

    A. Cement B. Metallurgical C. Fertiliser D. Power...