A. Reflector
B. Translucent
C. Transparent
D. Opaque
Physical Properties
The ability of an alloy to withstand mechanical stresses without permanent deformation is reflected by its______________?
A. Resilience
B. Elastic limit / Elastic strain
C. Hardness
D. Fatigue resistance
Deformation that is recovered upon removal of an externally applied force or pressure is known as_____________?
A. Young’s modulus
B. Plastic strain
C. Elastic strain
D. Flexural strain
Maxwell – Voigt Model is to determine________________?
A. Elastic Behaviour
B. Plastic Behaviour
C. Viscoelastic Behaviour
D. All of the above
Hardness number which does not depend on the ductility of metal_____________?
A. KNH
B. VHN
C. RHN
D. BHN
Sublimation is the conversion of a___________________?
A. Solid directly to gas
B. Gas to liquid and then to soild
C. Gas directly to liquid
D. Solid to liquid and then to gas
Ductility of a material is a measure of it’s_______________?
A. Grain elongation
B. Anealing
C. Cold working
D. Work hardening
The greatest stress which may be produced in a material such that stress is directly proportional to the strain is know as_____________?
A. The elastic limit
B. The proportional limit
C. The yield strength
D. Modulus of elasticity
When two metals are completely miscible in liquid state and they remain completely mixed on solidifiation, the alloy formed is called________________?
A. Solid solution
B. Eutectic mixture
C. Peritectic mixture
D. Inter metallic compounds
Coefficient of thermal expansion of which of following is most similar to that of tooth ?
A. Gold inlay
B. Acrylic resin
C. Silicate cement
D. Gold foil
