Category: Physical Properties

A. Complete wetting of surfaces
B. Rough surfaces between Adhesive & Adherent
C. Adherent and Adhesive molecules are tangent to each other
D. Irregularities present between Adherent surfaces

A. Inter atomic movement
B. Inter atomic imbalance
C. Arrangement of atoms
D. Arrangement of molecules

A. Graphite
B. Carbon
C. Acrylic
D. Porcelain

A. Primary forces
B. Secondary forces
C. Cohesive forces
D. Ionic forces

A. Define and measure colour qualitatively
B. Define and measure physical properties of gold alloys
C. Evaluate brittleness of different alloys
D. Measures different colours quantitatively

A. Greater ductility
B. Greater toughness
C. A higher modulus of elasticity
D. A higher modulus of elasticity
E. More resistance to permanent deformation

A. Vickers’s hardness number
B. Knoop hardness number
C. Brinell hardness number
D. Rockwell hardness number

A. Removal of smear layer
B. Exposure of collagen fibers
C. Opening of dentinal tubules
D. Increases surface energy

A. Above the proportional limit a material function in a plastic manner, while below the proportional limit it behaves as an elastic
B. Above the proportional limit a material functions in an elastic manner, while below the proportional limit it behaves as an plastic
C. Either A or B
D. Neither A or B

A. Area of the test specimen upon which the weight rests
B. Elasticity of the test specimen in strain
C. Length of the test specimen beneath the force
D. Strain of the test specimen per unit length