Subject Repository
Dental Materials
Showing 581 – 600 of 625 verified multiple choice questions with answers and explanations.
Q582NTS / FPSC / PPSC
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____________?
Q584NTS / FPSC / PPSC
Impression plaster containing potato starch is called______________?
Q585NTS / FPSC / PPSC
Powders of dental plaster and dental stone differ mainly in____________?
Q586NTS / FPSC / PPSC
Beta hemihydrate particles absorb______________?
Q588NTS / FPSC / PPSC
The product, which is obtained by calcining gypsum under steam pressure at 120-130°C or by dehydrating gypsum in the presence of sodium succinate is_______________?
Q589NTS / FPSC / PPSC
The strength of gypsum prouducts is generally expressed in terms of______________?
Q590NTS / FPSC / PPSC
The function of 2% potassium sulphate in a gypsum product is_____________?
Q592NTS / FPSC / PPSC
ADA specification number of gypsum products are described under____________?
Q593NTS / FPSC / PPSC
Modiffiers are added to gypsum mainly to_______________?
Q594NTS / FPSC / PPSC
Placing cast under tap water is to be avoided as______________?
Q595NTS / FPSC / PPSC
The β (Beta) hemihydrate of gypsum requires more water to float its powder particles because______________?
Q596NTS / FPSC / PPSC
In plaster of paris the setting time is primarily altered by_________________?
Q598NTS / FPSC / PPSC
The most commonly used accelerator in gypsum product is___________________?
Q599NTS / FPSC / PPSC