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

Related Mcqs:

With increase in the porosity, thermal spalling resistance of fireclay brick___________________?

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

Spalling resistance of a refractory cannot be increased by ____________________?

A. Increasing its porosity B. Using a coarser grog during its manufacture C. Decreasing its thermal co-efficient of expansion D. Making it denser...

Pyrometric cone equivalent (PCE) of a refractory is the measure of its_________________?

A. Spalling resistance B. Fusion point C. Resistance to slag penetration D. Resistance to carbon monoxide attack...

______________ bricks should not be used in oxidising atmosphere?

A. Tar dolomite B. Carbon C. Silica D. Fireclay...

Carborundum used for making crucibles for melting non-ferrous metals is chemically________________?

A. Silicon carbide B. Silicon nitride C. Crystalline magnesia D. Zirconium sulphate...