medical MCQs – Page 447

Practise multiple-choice questions from medical for competitive examinations and subject revision. Review each marked answer and report any item that may be outdated or unclear.

medical Mcqs

1. oral anatomy 2. microbiology 3. oral pathology and medicine 4. physiology 5. biochemistry 6. general anatomy 7. dental materials 8. pharmacology 9. pathology 10. oral histology

8921. Electrolyte used for plating copper dies is________________?
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A. Ionic copper

B. Silver cyanide

C. Acidic copper sulphate

D. Copper cyanide

8922. All of the following is used as accelerator in zinc oxide eugenol cement except_______________?
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A. Bromoglycerine

B. Zinc acetate dehydrate

C. Acetic acid

D. Calcium chloride

8923. Percentage of zinc in ZOE cement is__________________?
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A. 70%

B. 90%

C. 80%

D. 60%

8924. The cement Which is least soluble in oral cavity______________?
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A. Glass ionomer

B. Silico-Phosphate cement

C. Resin cement

D. Polycarboxylate cement

8925. Setting time of Amalgam is best controlled by _______________?
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A. Altering Hg-Alloy ratio

B. Trituration time

C. Using spherical particles

D. Lathe cut alloy

8926. In non-eugenol pastes the constituents are mixed in______________?
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A. None of the above

B. Ethyl alcohol

C. Phosphoric Acid

D. Benzoic acid

8927. Which of the following statements about high copper silver alloy compared to conventional alloy is not true ?
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A. Its edge strength is greater

B. It has poor tarnish and corrosion resistance

C. It has increased tensile and compressive strength

D. Mercury content in the final restoration is less

8928. Which one of the following is not an objective of trituration ?
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A. Keep the amount of gamma-1 or gamma-2 matrix crystals to maximum

B. Achieve a workable mass of amalgam in minimum time

C. Pulverize pelletes into particles to aid in attack by mercury

D. Remove oxides from powder particle surface

8929. Porcelain is best fired__________________?
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A. Under air compression

B. In open air

C. When several layer are fired simultaneously

D. Under minimum pressure

8930. Crocus cloth is________________?
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A. Rouge

B. Emery

C. Pumice

D. Garnet

8931. The cohesive gold used as bulk filler is_____________?
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A. Spherical gold

B. Electra alloy

C. Gold foll

D. Mat gold

8932. By increasing the percentage of which metal, the strength and hardness of amalgam increases_____________?
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A. Zn

B. Ag

C. Cu

D. Hg

8933. Which of the following acts as accelerator in Zinc oxide eugenol______________?
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A. Zn(OH)2 + ZnO

B. ZnCl2 + ZnSO2

C. Eugenol + ZnO

D. ZnCl2 + Eugenol

8934. Ethoxy benzoic acid increases the strength and solubility of the cement______________?
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A. Silicate cement

B. Zinc phosphate cement

C. Zinc oxide eugenol

D. Polycarboxylate cement

8935. Which cement base has the highest modulus of elasticity ?
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A. Glass inomer cement

B. Zinc polycarboxylate

C. Polymer reinforced ZOE cement

D. Zinc phosphate

8936. Frozen slab technique is applicable to_____________?
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A. Zinc oxide Eugenol cement

B. Glass Ionomer cement

C. Zinc phosphate cement

D. Resin cement

8937. Direct filling gold formed by electrolytic precipitation is called by all the terms EXCEPT______________?
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A. Sponge gold

B. Granular gold

C. Mat gold

D. Crystalline

8938. Minimum thickness for type I zinc phosphate cement should be_______________?
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A. 25 microns

B. 15 microns

C. 50 microns

D. 100 microns

8939. Machineable glass ceramic is________________?
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A. Infusium

B. Decor MGC

C. Cerestore

D. Leucite

8940. The percentage of copper in high copper alloy is______________?
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A. 0-6%

B. 20-30%

C. 13-30%

D. 10-12%

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