With increase in the porosity, thermal spalling resistance of fireclay brick___________________?

Related Mcqs:

Lower part of hot metal mixer are lined with _____________ bricks?

A. Superduty fireclay B. High alumina C. Silica D. Carborundum...

Machine moulding of dry mixture of refractories requires a pressure of the order of _____________ kg/cm2?

A. 10 B. 100 C. 500 D. 1000...

SiO2 percentage in firebrick is about____________________?

A. 35-40 B. 55-60 C. 80-85 D. > 94...

High refractoriness of refractory bricks means, that it has a________________?

A. High spalling resistance B. Low spalling resistance C. High resistance to fusion D. Low porosity...

Dolomite bricks have good resistance to attack by_____________________?

A. Molten steel B. Iron oxide C. Lime slag D. None of these...