Silica sol__________________?

Related Mcqs:

1. The maximum carbon content of steel used in dentistry is__________________?

   A. 19%
   B. 2%
   C. 1.7%
   D. 4%

2. Incomplete casting is the result of_____________?

   A. More porous investment in the mould
   B. Narrow sprue diameter
   C. Hollow sprue pin
   D. Large reservoir

3. The standard perforated tray for us with alginate impression materials may be brought to more customized contour by_______________?

   A. Utility wax
   B. Base plate wax
   C. Beading wax
   D. Boxing wax

4. Inlay wax is used to_______________?

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

5. Gases dissolved in molten metals are liberated when cooled giving rise to________________?

   A. Suckback porosity
   B. Gas inclusion porosity
   C. Localized shrinkage porosity
   D. Microporosity

6. In Base metal alloys, Corrosion resistance occurs due to___________________?

   A. Passivity
   B. High Fusion Temperature
   C. High Molecular Weight
   D. Co-efficient of Thermal Expansion

7. Dendrites in cst alloys form by mechanism of_________________?

   A. Constitutional superconductivity
   B. Constitutional supercooling
   C. Constitutional supergriting
   D. Constitutional supergraining

8. Which of the waxes are derived from the lignite_________________?

   A. Paraffin wax
   B. Inlay wax
   C. Microcrystalline wax
   D. Montan wax

9. Austenite is an alloy of iron of and carbon with the iron in______________?

   A. Alpha form
   B. Beta form
   C. Gamma form
   D. None of the above

10. A thinner mix of a gypsum bonded investment will_______________?

    A. Produce a smoother casting
    B. Decrease setting expansion
    C. Increase setting expansion
    D. Increase thermal expansion