A. Back pressure porosity
B. Localized shrinkage porosity
C. Pin hole porosity
D. Micro porosity
Related Mcqs:
- A common electrolyte used for plating copper indirect dies is_______________?
A. Copper cynide
B. Ionic copper
C. Acidic copper sulfate
D. Silver cyanide - Indirect sympathomimetics can_______________?
A. Penetrate the blood brain barrier
B. Cause euphoria
C. Both of the above
D. None of the above - In a patient with allergy to costume jewelry, which of the following is contraindicated______________?
A. High gold
B. Low gold
C. Palladium – Ag
D. Ni – Cr - Which of the following refractory is used to counteract most of the expansion________________?
A. Quartz
B. Cristobalite
C. Tridymite
D. Corundum - Which of the following fuel gases used for soldering, has the highest heat content______________?
A. Hydrogen
B. Natural gas
C. Acetylene
D. Propane - Which of the following increases castability of base metal alloys________________?
A. Tin
B. Beryllium
C. Molybdenum
D. Carbon - Which of the following fuel gases is the best choice of heat source to carry out soldering process ?
A. Propane
B. Acetylene
C. Natural gas
D. Hydrogen - The term ordered hardening heat treatment used in which of the following dental alloys ?
A. Gold-Copper
B. Nickel-Chromium
C. Nickel-Titanium
D. Silver-Palladium - Which of the following cast gold alloys is used for fabricating partial denture frameworks______________?
A. Type I – Soft
B. Type II – Hard
C. Type III – Hard
D. Type IV – Extra Hard - Which of the following zones is used for melting alloy during casting______________?
A. Reducing flame
B. Oxidizing flame
C. Green flame
D. All of the above
