Maximum alumina content in high alumina refractory can be as high as ____________ percent?

Related Mcqs:

Pick out the wrong statement?

A. Insulating refractories used in place of regular refractory bricks are usually called light weight refractories, and they have similar composition as heavy bricks B. Graphite refractories are also called plumbago refractories C. Superduty fireclay bricks correspond to a pyrometric cone equivalent of 26-28 D. Calcined magnesite is also called dead burnt magnesite...

With rise in temperature, the heat capacity of a substance___________________?

A. Increases B. Decreases C. Remains unchanged D. Either A. or B.; depends on the substance...

A chemical process is said to occur under unsteady state, if the_________________?

A. Inventory changes do not take place B. Ratio of streams entering/leaving are independent of time C. Flow rates & composition both are time dependent D. None of these...

In _______________ process, ions of salts react with water to produce acidity or alkalinity ?

A. Hydration B. Hydrolysis C. Electrolysis D. Dialysis...

In a chemical process, the recycle stream is purged for______________________?

A. Increasing the product yield B. Enriching the product C. Limiting the inerts D. Heat conservation...