10 to 30% magnesite is added to Chromite to produce chrome-magnesite refractories. Magnesite addition is mainly done to improve the _____________ of Chromite?

Related Mcqs:

Silica bricks are attacked by basic slags at high temperature. Which of the following is not used solely as a binding material ?

A. Aluminium phosphate B. Water C. Lime D. Plaster of Paris...

Thermal spalling mainly occurs during _____________ of furnaces?

A. Cooling down B. Warming up C. Both A. & B. D. Neither A. nor B....

Resistance to slag attack of a refractory _____________________?

A. Depends on the nature of slag & refractory B. Decreases at higher temperature C. Decreases, if defective joints & cracks exist in the refractory D. All A., B. and C....

Refractoriness under load (RUL) is the most important property for the refractory bricks_________________?

A. At the hearth bottom of the furnace on which stock is placed B. Used for furnace insulation C. Used in the roof of the furnace D. None of these...

Porosity of fireclay refractories is _______________ percent?

A. 5-10 B. 10-25 C. 25-35 D. 35-50...