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Medical Science Mcqs 5254 MCQs [All-Courses]

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

Plaster mix____________?

A Rapid spatulation results in decreased setting time

B 2% potassium sulphate is accelerator

C Citrates are retarders

D All of the above

Review Detailed Answer

Correct Answer: All of the above

A rough / Chalky surface of the cast is due to_______________?

A Not waiting for 20 min before pouring

B High speed accelerator

C Air incorporation in the mix

D All of the above

Review Detailed Answer

Correct Answer: All of the above

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

Review Detailed Answer

Correct Answer: Adding potassium sulfate

Most commonly used retarder in gypsum_____________?

A Na2 So4

B Nacl

C Citrales

D K2 So4

Review Detailed Answer

Correct Answer: Citrales

Gypsum product having least expansion_____________?

A Impression plaster

B Model plaster

C Stone plaster

D Die stone

Review Detailed Answer

Correct Answer: Die stone

Gillmore needle is used for_______________?

A Testing the strength of plaster of paris

B Evaluating the setting time of plaster of pris

C Testing the metal hardness

D Testing the purity of noble metals

Review Detailed Answer

Correct Answer: Evaluating the setting time of plaster of pris

Setting of POP is result of______________?

A Difference in solubility of CaSo4 ½ H2O + CaSO4+ 2H2O

B Reaction between CaSO4+ 2H2O and water

C Nucleation and growth of CaSo4 ½ H2O crystals

D Reaction between hemihydrate and hihydrate

Review Detailed Answer

Correct Answer: Difference in solubility of CaSo4 ½ H2O + CaSO4+ 2H2O

Type I gypsum product is also called_______________?

A Impression plaster

B Class I stone / Hydrocal

C Class II stone/Densite

D Model plaster

Review Detailed Answer

Correct Answer: Impression plaster

Plaster of paris _____________?

A Is wet calcined hemihydrate

B Has porous and irregular crystals

C Is a – hamihydrate

D Has a W / P of 0.2

Review Detailed Answer

Correct Answer: Has porous and irregular crystals

As per DNA No. 25, minimum amount of setting expansion required for type V gypsum products_______________?

A 0.05

B 0.10

C 0.15

D 0.20

Review Detailed Answer

Correct Answer: 0.10

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Medical Science Mcqs 5254 MCQs [All-Courses]

All Topics 5254

All Topics 5254

Plaster mix____________?

A rough / Chalky surface of the cast is due to_______________?

The setting expansion of gypsum products can be reduced by________________?

Most commonly used retarder in gypsum_____________?

Gypsum product having least expansion_____________?

Gillmore needle is used for_______________?

Setting of POP is result of______________?

Type I gypsum product is also called_______________?

Plaster of paris _____________?

As per DNA No. 25, minimum amount of setting expansion required for type V gypsum products_______________?