medical MCQs – Page 438

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 Review each marked answer and report any item that may be outdated or unclear.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

8741. The advantage of ZOE impression paste_______________?
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A. Is easy manipulation

B. Has dimensional stability

C. Does not require special trays

D. Does not adhere to tissues

8742. Alginate impression material is________________?
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A. Non-elastic impression material

B. More mucostatic than ZOE

C. Less mucostatic than ZOE

D. Thermoplastic impression material

8743. Most biocompatible material in oral cavity is_______________?
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A. Titanium

B. Palladium

C. Gold

D. Platinium

8744. Waxes are used for_______________?
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A. Corrective impressions

B. Primary impression

C. Impression of single tooth

D. None of the above

8745. The function of 2% potassium sulphate in a gypsum product is_____________?
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A. Regulate setting time

B. To regulate the setting expansion

C. None

D. Acts as retarder

8746. The main ingredient of inlay wax is__________________?
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A. Carnauba wax

B. Candellila wax

C. Paraffin wax

D. Gum dammar

8747. The impression with the least dimensional change upon disinfection is_______________?
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A. Polysulphide

B. Agar-agar

C. Addition poly silicone

D. Polyether

8748. The Zinc oxide-eugenol impression pastes harden by________________?
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A. Pressure

B. Chemical reaction

C. Heat

D. Cold

8749. Nickel-Titanium alloy has__________________?
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A. Unreliable spring back

B. Minimal spring back

C. None of the above

D. low spring back

8750. Syneresis seen in hydrocolloid gel is______________?
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A. Shrinkage

B. Gelation

C. Water absorption

D. Seen as water loss

8751. The effects associated with cold working can be eliminated by a heat treatment called______________?
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A. Homogenization heat treatment

B. Annealing heat treatment

C. Age hardening heat treatment

D. Solution heat treatment

8752. Most mucostatic among the following_____________?
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A. Impression compound

B. ZOE paste

C. Elastomer

D. Alginate

8753. Syringe material is______________?
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A. Medium viscosity elastomer

B. Medium & low viscosity elastomer

C. High viscosity elastomer

D. Low viscosity elastomer

8754. Stabilization of stainless steel is achieved by adding____________?
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A. Chromium

B. Carbon

C. Titanium

D. Nickel

8755. Mouth temperature waxes are_______________?
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A. None of the above

B. Green stick wax

C. Iowa wax

D. Modeling wax

8756. The base constituents of dental waxes come from three main sources except______________?
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A. Mineral

B. Animal

C. Insect

D. Vegetable

8757. All of the following statements about cast cobalt alloy are true EXCEPT_____________?
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A. They are more rigid than gold alloys

B. They have a lower proportional limit than gold alloys

C. They have a modulus of elasticity twice that of gold alloys

D. They have higher ductility than gold alloys

8758. Cause of expansion in zinc containing amalgam is_____________?
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A. Zinc and water

B. Hydrogen

C. Nascent oxygen

D. Water

8759. Porosity in porcelain at condensation stage depends on_________________?
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A. None of the above

B. Shape and size of particle

C. Uniform distribution of particle size

D. Number of particles

8760. Which of the following silver amalgam alloy have the maximum strength________________?
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A. Admixed

B. Single composition

C. Spherical

D. Lathe cut

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