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.Management Sciences
A. Stone
B. Plaster
C. Investment
D. All of the above
Related Mcqs:
- Green strength with reference to plaster means_____________?
- A. Dry strength B. Compressive strength C. Strength of dental stone due to green colour D. The wet strength...
- Placing cast under tap water is to be avoided as______________?
- A. H2O interferes with hygroscopic expansion B. H2O inhibits polymerization of dental resin C. H2O interferes with Crystallization of dihydrate D. Gypsum is slightly soluble in water and the surface of the cast will be eroded...
- Modiffiers are added to gypsum mainly to_______________?
- A. Modify setting time B. Modify setting expansion C. Modify strength D. Decrease the porosity...
- The strength of the gypsum specimen when the water in excess of that required for the hydrate of the hemihydrate is left in the specimen is called____________?
- A. Dry strength B. Green strength C. Water strength D. Compressive strength...
- The setting expansion of gypsum products can be reduced by________________?
- A. Increased spatulation B. Adding potassium sulfate C. Less water powder ratio D. Allowing setting under water...
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