Finer particle size of silica______________?

Related Mcqs:

1. Average particle size of powdered gold is________________?

   A. 10 um
   B. 15 um
   C. 30 um
   D. 0.1 um

2. The particle size in microfilled composites is_____________?

   A. 0.05 to 0.04mm
   B. 0.5 to 1.0 microns
   C. 0.01 to 0.1 microns
   D. 0.3 to 0.4mm

3. The Dane particle is the______________?

   A. HBV
   B. IgG anti HAV
   C. Delta Virus
   D. HBC Ag

4. One virus particle prevents multiplication of 2nd virus. This phenomena is____________?

   A. Viral interference
   B. Mutation
   C. Supervision
   D. Permutation

5. Green strength with reference to plaster means_____________?

   A. Dry strength
   B. Compressive strength
   C. Strength of dental stone due to green colour
   D. The wet strength

6. The hygroscopic technique is associated with______________?

   A. Investment
   B. Hydrocolloids
   C. Amalgam
   D. Silicate

7. Modiffiers are added to gypsum mainly to_______________?

   A. Modify setting time
   B. Modify setting expansion
   C. Modify strength
   D. Decrease the porosity

8. Impression plaster containing potato starch is called______________?

   A. Plaster of paris
   B. Soluble plaster
   C. Anti – expansion solution
   D. Die stones

9. As per DNA No. 25, minimum amount of setting expansion required for type V gypsum products_______________?

   A. 0.05
   B. 0.10
   C. 0.15
   D. 0.20

10. The setting expansion of gypsum products can be reduced by________________?

    A. Increased spatulation
    B. Adding potassium sulfate
    C. Less water powder ratio
    D. Allowing setting under water