A. Improve bonding
B. Harden the metal ceramic Ag-Pd alloy
C. Both A and B
D. None of the above
Related Mcqs:
- Advantage of titanium over other base metal alloys_______________?
A. Low weight
B. Low cost
C. Low strength
D. Low melting point - In a metal ceramic crown for a FPD the function of tin, indium which are readily oxidized minor constituents is to________________?
A. Improve bonding
B. Decrease porosity
C. They react with the porcelain opaque layer, which masks the metal
D. Improves the thermal expansion between the metal and porcelain - Gallium and indium added to Amalgam replace______________?
A. Silver
B. Tin
C. Mercury
D. Zinc - The castability of chromium-cobait base metal alloys when compared to gold based noble metal alloys is_______________?
A. More
B. Less
C. Equal
D. Depends on the alloy type - Linear coefficient of thermal expansion of metal used for metal caramic restoration range from________________?
A. 11.5-12.5×10-6/°C
B. 10.5-11.5×10-6/°C
C. 13.5-14.5×10-6/°C
D. 16.5-17.5×10-6/°C - The porosity formed due to simultaneous nucleation of solid grains and gas bubbles at the first moment that metal freezes at the mold walls is called__________?
A. Pinhole porosity
B. Gas inclusion porosity
C. Micro porosity
D. Subsurface porosity - Which of the following increases castability of base metal alloys________________?
A. Tin
B. Beryllium
C. Molybdenum
D. Carbon - The solvent flux used for base metal soldering is_______________?
A. Boric acid
A. Borax
B. Fluoride
C. Rouge - 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 - Cleaning of base metal alloy is done by______________?
A. Warm HCI
B. Cold HF
C. Cold H2SO4
D. Sand blasting with aluminium oxide
