With indirect spruing. Which one of the following porosities can be minimised_______________?

Related Mcqs:

1. A common electrolyte used for plating copper indirect dies is_______________?

   A. Copper cynide
   B. Ionic copper
   C. Acidic copper sulfate
   D. Silver cyanide

2. Indirect sympathomimetics can_______________?

   A. Penetrate the blood brain barrier
   B. Cause euphoria
   C. Both of the above
   D. None of the above

3. 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

4. Which of the following refractory is used to counteract most of the expansion________________?

   A. Quartz
   B. Cristobalite
   C. Tridymite
   D. Corundum

5. Which of the following fuel gases used for soldering, has the highest heat content______________?

   A. Hydrogen
   B. Natural gas
   C. Acetylene
   D. Propane

6. Which of the following increases castability of base metal alloys________________?

   A. Tin
   B. Beryllium
   C. Molybdenum
   D. Carbon

7. 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

8. 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

9. 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

10. 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