Lower wall courses of soaking pits are made of _____________ bricks to avoid the action of molten slag & scale?

Related Mcqs:

Magnesite refractories are generally not used in the__________________?

A. Electric furnace walls B. Steel melting furnace C. Open hearth furnace D. Burning zone of cement kilns...

If 1.5 moles of oxygen combines with aluminium to form Al2O3, then the weight of aluminium (atomic weight = 27) used in this reaction is __________ gm?

A. 27 B. 54 C. 5.4 D. 2.7...

If the pressure of a gas is reduced to half & its absolute temperature is doubled, then the volume of the gas will_________________?

A. Be reduced to 1/4th B. Increase four times C. Increase two times D. None of these...

For most salts, the solubility increases with rise in temperature, but the solubility of _______________ is nearly independent of temperature rise?

A. Sodium chloride B. Sodium carbonate monohydrate C. Anhydrous sodium sulphate D. Hypo...

The temperature of a gas in a closed container is 27° C. If the temperature of the gas is increased to 300° C, then the pressure exerted is___________________?

A. Doubled B. Halved C. Trebled D. Unpredictable...