Pyrometric cone equivalent (PCE) value (Segar cone) of ‘Superduty refractories’ is more than 33 which corresponds to a temperature of _____________ °C?

Related Mcqs:

Maximum shrinkage in volume occurring during burning/firing of dried refractories may be as high as ______________ percent?

A. 10 B. 15 C. 20 D. 30...

Silica bricks are attacked by basic slags at high temperature. Which of the following is not used solely as a binding material ?

A. Aluminium phosphate B. Water C. Lime D. Plaster of Paris...

Except _____________, all other refractories are bad conductors of electricity (i.e, have low electrical conductivity)?

A. Fireclay B. Carborundum C. Graphite D. Chromite...

With increase in the alumina content, the refractoriness of high alumina refractories_______________?

A. Increases B. Decreases C. Remain same D. May increase or decrease...

Sillimanite (Al2O3.SiO2) refractory, which is a neutral refractory, is not used in________________?

A. Pottery furnace B. Glass melting furnace C. Crucibles D. Gas retorts...