In a metal ceramic crown for a FPD the function of tin, indium which are readily oxidized minor constituents is to________________?

Related Mcqs:

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...

Inlay wax is used to_______________?

A. Temporarily cement inlays: B. Make inlay wax patterns C. Invest inlay patterns D. Box models...

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...

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...

Ideal requirement of metal ceramic casting____________?

A. Low fusing ceramic and high fusing alloys B. Matching of coefficients of thermal expansion of ceramics and alloy C. Bonding between ceramic and alloy D. All of the above...