Water powder ratio of dental stone and plaster is respectively_________________?

Related Mcqs:

Model plaster (white) used to cast study models before mixing with water, is largely composed of____________?

A. CaO B. CaCO3 C. (CaSO4)2-½H2O D. CaSO4-2H2O...

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...

Water of reaction needed to react completely with 100 g of calcium sulphate hemihydrates to convert it to calcium sulphate dihydrate______________?

A. 18.6ml B. 22.2ml C. 30.4ml D. 45.3ml...

Type III Dental gypsum is__________________?

A. Class II stone B. Densite C. Class I stone or hydrocal D. Model or lab plaster...

Powders of dental plaster and dental stone differ mainly in____________?

A. Solubility B. Shelf life C. Chemical formula D. Particle porosity...