When solid gets wet completely contact angle is______________?
A. 90°
B. 0°
C. 0 – 90°
D. >90°
Medical Mcqs
Brinnel hardness number of a dental gold alloy is directly proportional to its______________?
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
Hardness number which does not depend on the ductility of metal_____________?
Hardness number which does not depend on the ductility of metal_____________?
A. KNH
B. VHN
C. RHN
D. BHN
The greatest stress which may be produced in a material such that stress is directly proportional to the strain is know as_____________?
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
The modulus of elasticity is defined as_______________?
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
Strain is defined as_____________?
Strain is defined as_____________?
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
A good adhesive should possess all of the following EXCEPT________________?
A good adhesive should possess all of the following EXCEPT________________?
A. High adherend wetting
B. High contact angle
C. Low contact angle
D. High flow
In measuring Vickers hardness no. Which of the following is used________________?
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
The simplest alloy is a_______________?
The simplest alloy is a_______________?
A. Solid solution
B. Eutectic alloy
C. Peritectic allowy
D. Ternary alloy
Materials which has high compressive strength and low tensile strength is classified with property of________________?
Materials which has high compressive strength and low tensile strength is classified with property of________________?
A. Ductility
B. Brittleness
C. Malleability
D. Resilient