A. Solid directly to gas
B. Gas to liquid and then to soild
C. Gas directly to liquid
D. Solid to liquid and then to gas
Sublimation is the conversion of a___________________? Read More »
Dental Materials, Medical Mcqs, Physical Properties 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
Modulus of elasticity means_______________? Read More »
Dental Materials, Medical Mcqs, Physical Properties A. 90°
B. 0°
C. 0 – 90°
D. >90°
When solid gets wet completely contact angle is______________? Read More »
Dental Materials, Medical Mcqs, Physical Properties A. Tensile strength
B. Elongation
C. Modulus of elasticity
D. Modulus of resilience
A. KNH
B. VHN
C. RHN
D. BHN
Hardness number which does not depend on the ductility of metal_____________? Read More »
Dental Materials, Medical Mcqs, Physical Properties A. The elastic limit
B. The proportional limit
C. The yield strength
D. Modulus of elasticity
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
The modulus of elasticity is defined as_______________? Read More »
Dental Materials, Medical Mcqs, Physical Properties A. An applied load or force
B. A deformation resulting from an applied load
C. An external force opposing an applied load
D. An internal force opposing an applied load
Strain is defined as_____________? Read More »
Dental Materials, Medical Mcqs, Physical Properties A. High adherend wetting
B. High contact angle
C. Low contact angle
D. High flow
A good adhesive should possess all of the following EXCEPT________________? Read More »
Dental Materials, Medical Mcqs, Physical Properties A. Spherical indenter
B. Steel ball indentation
C. Rhomboid shaped indenter
D. 136-degree diamond pyramid
In measuring Vickers hardness no. Which of the following is used________________? Read More »
Dental Materials, Medical Mcqs, Physical Properties