Curioustab
Aptitude
General Knowledge
Verbal Reasoning
Computer Science
Interview
Aptitude
General Knowledge
Verbal Reasoning
Computer Science
Interview
Home
»
Chemical Engineering
»
Refractory Technology
Which of these statement is correct?
Conversion of quartz to tridymite is associated with 16% volume increase.
Conversion of tridymite to crystoballite involves very large expansion in volume.
both (a) and (b).
neither (a) nor (b).
Correct Answer:
neither (a) nor (b).
← Previous Question
Next Question→
More Questions from
Refractory Technology
Which property of refractories is the most important for top section of the blast furnace?
Which is not a basic refractory?
Resistance to slag attack of a refractory
Beryllia (which is used in making crucibles for melting uranium & thorium) is superior to alumina in all respects for high temperature (> 1900°C ) use, except
With increase in the porosity, thermal spalling resistance of fireclay brick
Magnesite bricks are used in those parts of furnaces, which are
Spray test determines the __________ of refractories.
silicon carbide refractories have very low
Cold crushing strength of ordinary fireclay brick is about 950 kg/cm2 . On exposure to a temperature of about 1500°C, its crushing strength may come down to as low as __________ kg/cm2 .
Which of the following is not a neutral refractory?
Discussion & Comments
No comments yet. Be the first to comment!
Name:
Comment:
Post Comment
Join Discussion
Discussion & Comments