Si percentage in silica refractories used in the walls of coke oven is about______________________?

Related Mcqs:

Bauxite calcining rotary kilns are lined with ________________ bricks?

A. Fireclay B. Carbon C. 85% alumina D. Corundum...

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....

Panel test determines the _____________ of refractories?

A. Fusion point B. Spalling resistance C. Slag penetration resistance D. Refractoriness under load (RUL)...

Furnace atmosphere for softening temperature determination of refractories (in which Seger Cones are placed) should be __________________?

A. Oxidising B. Neutral C. Either A. or B. D. Neither A. nor B....

In panel test for spalling resistance, the average face temperature of panel assembly is maintained at ______________ °C for 24 hours?

A. 700 B. 1000 C. 1600 D. 2000...