medical MCQs – Page 122

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 Review each marked answer and report any item that may be outdated or unclear.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

2421. The wetting of an adherent surface by an adhesive is related to________________?
0

A. Surface energy of the adherent

B. Nature of the adherent that is crystalline or amorphous

C. Surface tension of the adherent

D. Surface texture of the adherent

2422. Bonding of composite resins to tooth structure is by________________?
0

A. Covalent bond

B. Ionic bond

C. Vanderval forces

D. Mechanical

2423. Subsurface porosity is due to_____________?
0

A. Lack of temperature

B. Thermal changes

C. Thickness of the resin

D. Packing past the dough stage

2424. Light cure system, side effect is____________?
0

A. Cataract

B. Iritis

C. Retinal damage

D. Conjunctivitis

2425. The specific test for Treponema pallidum is___________?
0

A. VDRL

B. TPHA

C. Widal test

D. Kahns test

2426. Insufficient closure of the flasks during packing of denture base resin can result in_____________?
0

A. Increase in vertical dimension

B. Decrease in vertical dimension

C. Poor colour stability

D. Less polymerization shrinkage

2427. Co-efficient of thermal expansion is highest for_____________?
0

A. Acrylic resin

B. Gold alloy

C. Amalgam

D. Silicate cement

2428. No trail closure is necessary with which one of the technique during denture fabrication_____________?
0

A. Fluid resin technique

B. Light cured technique

C. Compression moulding technique

D. Injection moulding technique

2429. For photo-curing the composite resin the light source______________?
0

A. Will cure composite upto a depth of 5 millimeter thickness

B. Need no protection while in use

C. Is fiber optic

D. Should be held at a millimeter distance from the restoration

2430. The urine sample of a patient has been sent to the laboratory to look for Leptospira. The specimen is to be screened by use of the__________________?
0

A. Scanning microscope

B. Electron microscope

C. Inverted microscope

D. Dark ground microscope

2431. Which of the following may result if an excessive amount of monomer is incorporated into an acrylic resin mixture ?
0

A. Low impact strength

B. Excessive expansion

C. Excessive shrinkage

D. Excessive brittleness

2432. Macromolecules in Dental Resin is attached by______________?
0

A. Vander Walls Forces

B. sonic bonds

C. Hydrogen Bonds

D. Covalent bonds

2433. Which of the following is NOT true of polymethyl methacrylate ?
0

A. Tensile strength of 60 MPa

B. Knoop hardness number 18 to 20

C. Modulus of elasticity of 3.4 GPa

D. Density of 1.13 g/cm3

2434. Bacteria reproduce mainly by______________?
0

A. Binary fission

B. Sporing

C. Bacterial components produced by host cells

D. Budding

2435. Ultimate tensile strength refers to_________________?
0

A. Longitudinal compressive strength

B. Horizontal compressive strength

C. Stress after rupture

D. Stress before rupture

2436. The Knoop Hardness Number of Microfilled composite Restorative material ranges from____________?
0

A. 40 48 KHN

B. 15 20 KHN

C. 25 35 KHN

D. 50 60 KHN

2437. Which of the following properties of dental materials is time dependent_______________?
0

A. Resillience

B. Ultimate strength

C. Creep

D. Elastic limit

2438. The following are applicable to bacterial genoms except________________?
0

A. It is composed of DNA

B. It doe not contain histones

C. It is circular

D. Its DNA has both introns and extrons

2439. Drumstick appearance is seen in______________?
0

A. Cl. tetanomorphum

B. Cl. sphenoids

C. All of the above

D. Cl. tetani

2440. The accepted polymer to monomer ratio for packing of polymethyl methacrylate resin is____________?
0

A. 3:1

B. 4:01

C. 5:01

D. 10:01

Previous Next

Showing 2421 to 2440 of 10266 mcqs