A. Setting time
B. Setting expansion
C. Hardness of the set product
D. None of the above
0
The main ingredient in dental plaster in_______________?
0
Die is________________?
A. Calcium sulphate hemihydrate
B. Calcium phosphate
C. Calcium anhydrate
D. Calcium sulphate dihydrate
0
Plaster of paris is mixed in________________?
A. Impression of single tooth
B. Impression of whole teeth
C. Replica of single tooth
D. Replica of whole teeth
0
Water of reaction needed to react completely with 100 g of calcium sulphate hemihydrates to convert it to calcium sulphate dihydrate______________?
A. Plastic bowl
B. Rubber bowl
C. Glass bowl
D. Metal bowl
0
Green strength with reference to plaster means_____________?
A. 18.6ml
B. 22.2ml
C. 30.4ml
D. 45.3ml
0
Water powder ratio of dental stone and plaster is respectively_________________?
A. Dry strength
B. Compressive strength
C. Strength of dental stone due to green colour
D. The wet strength
0
Model plaster (white) used to cast study models before mixing with water, is largely composed of____________?
A. 0.28 and 0.6
B. 0.6 and 0.28
C. 0.6 and 3.2
D. 0.28 and 0.98
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