Most Cermets, which normally have high thermal conductivity and high thermal shock resistance, comprises of ceramic & metallic components of ______________ percent respectively?

Related Mcqs:

In chemical process equipments, the conical bottom heads used, usually has an apex angle of____________________?

A. 20° B. 40° C. 60° D. 80°...

Zirconia refractory_________________?

A. Does not react with basic slags B. Is produced from baddeleyite C. Cannot be used as an insulator D. Has poor electrical conductivity at high temperature...

Chrome magnesite brick is not used for lining the___________________?

A. Hearth of soaking pits B. Bottom hearth of reheating furnace C. Coke oven regenerator D. Burning zone of limestone rotary kilns...

Maximum apparent porosity of magnesite bricks is about _____________ percent?

A. 8 B. 24 C. 44 D. 58...

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...