High alumina refractory compared to fireclay bricks have____________________?

Related Mcqs:

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

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

Porosity is induced in insulating refractories by adding________________?

A. Powdered naphthalene B. Ammonium chloride/sulphate C. Calcium phosphate D. All A., B. and C....

Rotary kilns meant for calcination of limestone are lined with chrome magnesite in ______________ zone?

A. Preheating B. Cooling C. Burning D. All the above...

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...