An ideal refractory should have high__________________?

Related Mcqs:

Which of the following has the lowest electrical resistivity ?

A. Graphite B. Fireclay C. Alumina D. Zircon...

Zircon refractories have__________________?

A. Low co-efficient of expansion B. High RUL (1600°C) and refractoriness (> 2000°C) C. High spalling resistance D. All A., B. and C....

Resistance to slag attack of a refractory _____________________?

A. Depends on the nature of slag & refractory B. Decreases at higher temperature C. Decreases, if defective joints & cracks exist in the refractory D. All A., B. and C....

Fireclay bricks are used in the___________________?

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

Spalling tendency of refractories is reduced by increasing its_________________?

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