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

Related Mcqs:

Which is not a basic refractory ?

A. Chrome magnesite B. Magnesite C. Dolomite D. Silicon carbide...

_____________ is not a single oxide-refractory?

A. Zirconia B. Silicon carbide C. Magnesia D. None of these...

High thermal conductivity of a refractory material is not important, when it is to be used in the______________________?

A. Coke oven regenerators B. Muffle furnace C. Blast furnace D. Recuperators...

Sillimanite is a _____________ refractory?

A. Basic B. Neutral C. High alumina D. Insulating...

Refractory bricks with lower permeability is produced by using __________________?

A. Higher firing temperature B. Higher moulding pressure C. Finer grog size D. All A., B. and C....