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

Related Mcqs:

1. Materials which has high compressive strength and low tensile strength is classified with property of________________?

   A. Ductility B. Brittleness C. Malleability D. Resilient...

2. 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...

3. Ultimate tensile strength refers to_________________?

   A. Stress before rupture B. Stress after rupture C. Longitudinal compressive strength D. Horizontal compressive strength...

4. Brazilian test is used to determine the ultimates tensile strength of_________________?

   A. Ductile materials B. Flexible materials C. Brittle materials D. Malleable materials...

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

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

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

   A. Grain elongation B. Anealing C. Cold working D. Work hardening...

7. The imperfection seen on the lingual flange of a lower denture caused by rapid heating during a curing cycle is called_____________?

   A. Localised Shrinkage porosity B. Gas inclusion porosity C. Micro porosity D. Surface porosity...

8. Annealing is also known as_______________?

   A. Soft hardening treatment B. Hard hardening treatment C. Precipitating heat treatment D. Stress relieving heat treatment...

9. Stages of annealing in order_________________?

   A. Recovery recrystallization grain growth B. Recrystallization recovery, grain growth C. Grain Growth Recrystallization recovery D. Melting point, grain growth, Recrystallization...

10. Nickel is added to wrought gold alloys as______________?

    A. Strengtherner B. Hardener C. Whitens the alloy D. Scavenger...