Ductility of a material is a measure of it’s_______________?

Related Mcqs:

1. Hardness number which does not depend on the ductility of metal_____________?

   A. KNH
   B. VHN
   C. RHN
   D. BHN

2. The rapid decrease in tensile strength and increase in ductility of a wrought metal is seen in which stage of annealing ?

   A. Recovery stage
   B. Recrystallisation stage
   C. Grain growth stage
   D. All of the above

3. Alginate impression material is similar to Agar-agar impression material in the following respect________________?

   A. Gelation increase in both on increase in temperature
   B. Mixing time is increased to reduce the setting time
   C. Deformation during removal of impression occurs due to distortion of gel fibers
   D. Both can be re-used for fresh impressions

4. The point at which a stress of a material exhibits a specific limited deviation P is called_______________?

   A. Proportional limit
   B. Tensile strength
   C. Ultimate strength
   D. Yield strength

5. Flow of a material refers to_______________?

   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

6. The elastic of plastic deformation to fracture a material is its_______________?

   A. Toughness
   B. Brittleness
   C. Young’s modulus
   D. Proportional limit

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

   A. 50 – 60 KHN
   B. 25 – 35 KHN
   C. 15 – 20 KHN
   D. 40 – 48 KHN

8. 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

9. The strain that occurs when a material is stressed to its proportional limit is______________?

   A. Resilience
   B. Maximum flexibility
   C. Toughness
   D. Elastic limit

10. A material which partially transmits light & partially scatters it________________?

    A. Reflector
    B. Translucent
    C. Transparent
    D. Opaque