A. Gold and Platinum
B. Cobalt and Chromium
C. Gold and Calcium
D. Tin and chromium
Related Mcqs:
- Which of the following statements about high copper silver alloy compared to conventional alloy is not true ?
A. It has increased tensile and compressive strength
B. It has poor tarnish and corrosion resistance
C. It’s edge strength is greater
D. Mercury content in the final restoration is less - White gold alloy predominantly is______________?
A. Gold added with palladium
B. Gold added with calcium
C. Gold with much of chromium
D. Gold with silver - Which phase provides maximum strength in hardened mercury/silver alloy ?
A. Silver / Mercury phase
B. Silver / Tin phase
C. Tin / Mercury phase
D. Zinc / Mercury phase - In amalgam alloy which acts as oxygen scavenger_____________?
A. Cu
B. Zn
C. Pd
D. Ag - Which of the following constituents of amalgam alloy decreases expansion____________?
A. Copper
B. Zinc
C. Silver
D. Tin - The largest component of amalgam alloy is_____________?
A. Silver
B. Tin
C. Zinc
D. Copper - The yield strength of AUstenite (NiTi alloy) is______________?
A. 100 Mpa
B. 240 Mpa
C. 560 Mpa
D. 700 Mpa - The contraction of gold alloy on solidifying is approximately_____________?
A. 0.4%
B. 1.4%
C. 2.4%
D. 3.4% - NiTi alloy have_______________?
A. Shape memory
B. Hyper rigidity
C. Corrosion resistance
D. Weldable properties - The stiffness of a dental gold alloy is determined by its________________?
A. Proportional limit
B. Modulus of elasticity
C. Ultimate tensile strength
D. Flow
