Which property of refractories is the most important for top section of the blast furnace ?

Related Mcqs:

1 BTU/lb.←°F is equivalent to ____________ kcal/kg.°C?

A. 1 B. 2.42 C. 1.987 D. 4.97...

Fireclay bricks are not used in the________________?

A. Beehive coke oven B. By-product coke oven walls C. Combustion chamber of B.F. stoves D. Coke oven regenerators...

N.T.P. corresponds to__________________?

A. 1 atm absolute pressure & 0°C B. 760 mm Hg gauge pressure & 0°C C. 760 torr & 15°C D. 101.325 KPa gauge pressure & 0°C...

One ‘Therm’ is equivalent to___________________?

A. 105 BTU B. 105 kcal C. 109 BTU D. 109 kcal...

If 1 Nm3 of O2 contains ‘N’ number of molecules, then number of molecules in 2Nm3 of SO2 will be_________________?

A. N B. N/2 C. 2N D. 4N...