Carborundum consists mainly of_________________?

Related Mcqs:

The compressive strength of cement should not be less than about 110Kg/cm2 after three days & not less than 170Kg/cm2 after seven days. The fineness of an ordinary cement as determined by turbidimetric method should be about ________________ cm2/gm?

A. 800 B. 1600 C. 4000 D. 8500...

Favourable conditions for the liquefaction of gases in general are _____________________?

A. High pressure & low temperature B. Low pressure & high temperature C. High pressure & high temperature D. Low pressure & low temperature...

_______________ is used as a flux in the smelting of copper ore like chalcopyrite ?

A. Coke breeze B. Lime powder C. Silica/quartz D. Dolomite...

Iron ore hematite is concentrated using ____________________?

A. Electromagnetic separation mainly B. Gravity separation C. Froth floatation D. Roasting...

High magnesia lime is added to hot sugar cane juice (during the manufacture of sugar) to__________________?

A. Flocculate the impurities B. Facilitate fast filtration C. Both A. and B. D. Neither A. nor B....