Which one of the following is the result of applying a load to a wire below its modulus of elasticity on a load deflection diagram ?
A. Fracture of the wire
B. permanent deformation
C. Spring back
D. Increase in stiffness
A. Fracture of the wire
B. permanent deformation
C. Spring back
D. Increase in stiffness
A. Viscoelastic
B. Pseudoplastic
C. Plastic
D. Newtonian
A. Brinnel
B. Knoop
C. Shore-A
D. Rockwell
Which of the following hardness test is a micro hardness test ? Read More »
Dental Materials, Medical Mcqs, Physical Properties A. Creep
B. Resillience
C. Elastic limit
D. Ultimate strength
Which of the following properties of dental materials is time dependent_______________? Read More »
Dental Materials, Medical Mcqs, Physical Properties A. Continued change of the material under a given load
B. The consistency of material when mixing
C. The homogencity of gypsum products
D. Dimensional change of the material during settings
Flow of a material refers to_______________? Read More »
Dental Materials, Medical Mcqs, Physical Properties A. Compressive strength
B. Tensile strength
C. Young’s modulus
D. Modulus of elasticity
A. Resilience
B. Elastic limit / Elastic strain
C. Hardness
D. Fatigue resistance
A. Vickers’s hardness number
B. Knoop hardness number
C. Brinell hardness number
D. Rockwell hardness number
A. Hardness
B. Yield strength
C. Modulus of elasticity
D. None of the above
A. Stress before rupture
B. Stress after rupture
C. Longitudinal compressive strength
D. Horizontal compressive strength
Ultimate tensile strength refers to_________________? Read More »
Dental Materials, Medical Mcqs, Physical Properties