medical MCQs – Page 124

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 Review each marked answer and report any item that may be outdated or unclear.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

2461. NiTi alloy have_______________?
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A. Shape memory

B. Weldable properties

C. Corrosion resistance

D. Hyper rigidity

2462. Tempering of steel cause________________?
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A. decreases its toughness

B. Increase ductility

C. Increases hardness

D. Increases its toughness

2463. The contraction of gold alloy on solidifying is approximately_____________?
0

A. 2.40%

B. 1.4%

C. 0.40%

D. 3.40%

2464. Cross linking in denture base resin is contributed by_____________?
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A. N-para toluidine

B. Glycol dimetharylate

C. Benzoyl peroxide

D. Methyl methacrylate

2465. Each of the following can cause food poisoning except________________?
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A. Cl. botulinum

B. Staphylococcus

C. Cl. welchii

D. Cl. difficile

2466. Gram -ve bacteria stain during gram staining____________?
0

A. Colorless

B. Blue color

C. Red color

D. Green

2467. The chemical used to etch enamel is_______________?
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A. Eugenol

B. Phosphoric acid

C. Methyl methacrylate

D. Zinc oxide

2468. Brazilian test is used to determine the ultimates tensile strength of_________________?
0

A. Brittle materials

B. Malleable materials

C. Ductile materials

D. Flexible materials

2469. Q fever is caused by________________?
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A. C. burnetti

B. R. prowozekii

C. R. quintana

D. Rickettsia tsutsugamushi

2470. Pathogenesis of diphtheria is attributed to__________________?
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A. Capsule

B. Endotoxin

C. Exotoxin

D. Invasion

2471. Lepromin test is useful for________________?
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A. Prognosis

B. Epidemiology

C. Treatment plan

D. Diagnosis

2472. A thinner mix of a gypsum bonded investment will_______________?
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A. Increase setting expansion

B. Produce a smoother casting

C. Decrease setting expansion

D. Increase thermal expansion

2473. The commonly used laser for curing composite resin is______________?
0

A. CO2

B. Argon

C. ER:YAG

D. Nd:YAG

2474. Porosity of denture base is due to_______________?
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A. Inadequate pressure

B. Packing at dough stage

C. Curing at 160F for 9 hrs

D. All of the above

2475. Cold cure acrylic expand in water by___________?
0

A. 10% by volume 0.23% by weight

B. 0.1% by volume 0.23% by weight

C. None of the above

D. 1% by volume 0.23% by weight

2476. Granules in the corynebacterium diphtheria are called by following names, except______________?
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A. Babes Ernst granules

B. Refractile granules

C. Metachromatic granules

D. Voluntin granules

2477. The forces that hold atoms together are called_____________?
0

A. Secondary forces

B. Cohesive forces

C. Ionic forces

D. Primary forces

2478. Insufficient closure of the flasks during packing of denture base resin can result in_____________?
0

A. Poor colour stability

B. Increase in vertical dimension

C. Decrease in vertical dimension

D. Less polymerization shrinkage

2479. Culture medium for corynebacterium diphtheria______________?
0

A. Saborauds agar

B. Lowenstein Jensen Medium

C. Mc Conkey

D. Loefflers serum slope

2480. A crystal in metal substructure is_______________?
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A. Grain

B. Stroma

C. None of the above

D. Nucleus

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