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A. Increases with rise in service temperature
B. Decreases with rise in service temperature
C. Is unaffected with change in service temperature
D. Decreases with increase in porosity
Related Mcqs:
- Which is the most stable crystalline form of silica at room temperature ?
- A. Quartz B. Cristobalite C. Tridymite D. None of these...
- Thermal spalling mainly occurs during _____________ of furnaces?
- A. Cooling down B. Warming up C. Both A. & B. D. Neither A. nor B....
- Magnesite bricks are used in those parts of furnaces, which are __________________?
- A. Subjected to temperature fluctuation B. Required to resist corrosive basic slag C. Subjected to high load D. None of these...
- Fireclay bricks are used in the___________________?
- A. Furnaces allowed to cool frequently B. Flues C. Chimney linings D. All A., B. and C....
- Natural silica___________________?
- A. Mainly contains quartz B. Is not stable at high temperature C. Transforms to other allotropic forms i.e. Tridymite and Cristobalite involving very high volume changes D. All A., B. and C....
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