A. KNH
B. VHN
C. RHN
D. BHN
Related Mcqs:
- Which of the following hardness test is a micro hardness test ?
A. Brinnel
B. Knoop
C. Shore-A
D. Rockwell - Ductility of a material is a measure of it’s_______________?
A. Grain elongation
B. Anealing
C. Cold working
D. Work hardening - 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 - A fluid having constant viscosity that does not depend upon the strain rate is said to be_______________?
A. Viscoelastic
B. Pseudoplastic
C. Plastic
D. Newtonian - 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 - In measuring Vickers hardness no. Which of the following is used________________?
A. Spherical indenter
B. Steel ball indentation
C. Rhomboid shaped indenter
D. 136-degree diamond pyramid - Brinnel hardness number of a dental gold alloy is directly proportional to its______________?
A. Tensile strength
B. Elongation
C. Modulus of elasticity
D. Modulus of resilience - By increasing the percentage of which metal, the strength and hardness of amalgam increases_____________?
A. Ag
B. Zn
C. Cu
D. Hg - The relative hardness of elastomere is determined using________________?
A. Rockwell tester
B. Barcol indenter
C. Knoop pyramid
D. Shore durometer - Hardness of fully mineralized cementum is_____________?
A. Less than dentin
B. More than dentin
C. Equal dentin
D. None of the above
