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Medical Science Mcqs 5254 MCQs [All-Courses]

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Medical Science is the study of human health, diseases, prevention, and treatment, focusing on diagnosis, patient care, and medical research to improve healthcare outcomes.

All Topics  5254

The strength of gypsum prouducts is generally expressed in terms of______________?
A Tensile strength
B Wet strength
C Green strength
D compressive strength
Correct Answer: compressive strength
The function of 2% potassium sulphate in a gypsum product is_____________?
A To regulate the setting expansion
B Regulate setting time
C Acts as retarder
D
Correct Answer: Regulate setting time
Finer particle size of silica______________?
A Slower the hygroscopic expansion
B Greater the hygroscopic expansion
C Normal setting expansion
D No setting expansion
Correct Answer: Greater the hygroscopic expansion
ADA specification number of gypsum products are described under____________?
A 1
B 4
C 12
D 25
Correct Answer: 25
Modiffiers are added to gypsum mainly to_______________?
A Modify setting time
B Modify setting expansion
C Modify strength
D Decrease the porosity
Correct Answer: Modify setting time
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
Correct Answer: Gypsum is slightly soluble in water and the surface of the cast will be eroded
The β (Beta) hemihydrate of gypsum requires more water to float its powder particles because______________?
A They are more regular in shape and dense
B They are more regular in shape and highly porous
C They are more irregular in shape and porous
D They are more dense and prismatic in shape
Correct Answer: They are more irregular in shape and porous
In plaster of paris the setting time is primarily altered by_________________?
A Altering P / L Ratio
B Altering temperature of mixing water
C Speed and length of hand spatulation
D Addition of accelerators and retarders
Correct Answer: Addition of accelerators and retarders
Which is gypsum product_______________?
A Stone
B Plaster
C Investment
D All of the above
Correct Answer: All of the above
The most commonly used accelerator in gypsum product is___________________?
A Sodium fluoride
B Potassium fluoride
C Potassium sulfate
D Aluminium sulfate
Correct Answer: Potassium sulfate
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