A. Rigidity or stiffness of the material
B. Ability to be stretched with permanent deformation
C. Ductility of a material
D. Malleability of the metal
Related Mcqs:
- 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 - The modulus of elasticity is defined as_______________?
A. The stress at the proportional limit
B. The strain at the proportional limit
C. The stress/strain ratio within the proportional limit
D. None of the above - Which of the following has the highest modulus of elasticity ?
A. Dentin
B. Enamel
C. Amalgam
D. Composite Resin - Which cement base has the highest modulus of elasticity ?
A. Zinc polycarboxylate
B. Polymer reinforced ZOE cement
C. Zinc phosphate
D. Glass inomer cement - For dental amalgam, the elastic modulus and tensile strength is______________?
A. 40 Gpa and 60 – 100 Mpa
B. 21 Gpa and 27 – 55 Mpa
C. 350 Gpa and 10 – 120 Mpa
D. 360 Gpa and 125 – 130 Mpa - The proportional limit is defined as______________?
A. The maximum stress in a structure
B. The minimum force required to cause a structure to break
C. The maximum stress that can be induced without permanent deformation
D. The maximum elongation under tension that can be measured before failure - A material behaves in certain ways above and below the proportional limit on a stress strin curve, which of the following is correct______________?
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 - Non metal which conducts elactricity______________?
A. Graphite
B. Carbon
C. Acrylic
D. Porcelain - When solid gets wet completely contact angle is______________?
A. 90°
B. 0°
C. 0 – 90°
D. >90° - Coefficienty of thermal expansion of tooth enamel is closest to_______________?
A. Slicate cement
B. Composite
C. GIC
D. Polycarboxylate
