A. Tensile strength
B. Proportional limit
C. Ductility
D. Hardness
Softening heat treatment of alloy increases_________________? Read More »
Dental Materials, Medical Mcqs, Metallurgy A. Form an opening of molten metal to enter the mold
B. Help polish cast restorations
C. Eliminate air bubbles on the wax pattern
D. Reproduce fine detail
The function of a sprue is to_______________? Read More »
Dental Materials, Medical Mcqs, Metallurgy A. Carbon
B. Chromium
C. Nickel
D. Titanium
Stabilization of stainless steel is achieved by adding____________? Read More »
Dental Materials, Medical Mcqs, Metallurgy A. 100 Mpa
B. 240 Mpa
C. 560 Mpa
D. 700 Mpa
The yield strength of AUstenite (NiTi alloy) is______________? Read More »
Dental Materials, Medical Mcqs, Metallurgy A. Dimensional change
B. Thermal conductivity
C. Warpage
D. Tarnish and corrosion
A. Impurities in gold
B. Improper venting
C. A and B
D. None of the above
Tublulence of molten gold is due to _____________? Read More »
Dental Materials, Medical Mcqs, Metallurgy A. High gold
B. Low gold
C. Palladium – Ag
D. Ni – Cr
A. Improve bonding
B. Harden the metal ceramic Ag-Pd alloy
C. Both A and B
D. None of the above
Indium in metal alloys_______________? Read More »
Dental Materials, Medical Mcqs, Metallurgy A. Iowa wax
B. Modeling wax
C. Green stick wax
D. None of the above
Mouth temperature waxes are_______________? Read More »
Dental Materials, Medical Mcqs, Metallurgy A. More porous investment in the mould
B. Narrow sprue diameter
C. Hollow sprue
D. Large reservoir
Incomplete casting is the result of_____________? Read More »
Dental Materials, Medical Mcqs, Metallurgy