Gelation temparature of agar is between________________?

Related Mcqs:

1. Alginate impression material is similar to Agar-agar impression material in the following respect________________?

   A. Gelation increase in both on increase in temperature
   B. Mixing time is increased to reduce the setting time
   C. Deformation during removal of impression occurs due to distortion of gel fibers
   D. Both can be re-used for fresh impressions

2. K2SO4 in agar-agar is for_______________?

   A. Accelerating the setting stage of gypsum
   B. Increase strength
   C. Give dimensional stability
   D. None of the above

3. The usual concentration of agar used in agar medium is___________________?

   A. 10%
   B. 2%
   C. 5%
   D. 15%

4. Agar syringe material can be used with/as______________?

   A. Agar
   B. Alginate impression material
   C. Both of the above
   D. Primary impression

5. Which one of the following increase the strength and reduce viscosity of agar hydrocolloid impression material_____________?

   A. Borax
   B. Water
   C. Sulfates
   D. Carbonates

6. Which of the following is true about Agar hydrocolloid impression material ?

   A. Liquefies between 71 – 100°C
   B. Solidfies between 50 – 70°C
   C. Facilitates fabrication of metal dyes
   D. Cannot register fine surface details

7. Agar is prepared from_______________________?

   A. Bullock heart
   B. Chemicals
   C. Sea weed
   D. Chick cells

8. Agar impression materials differ from alginate impression materials in that the former sets by_______________?

   A. Mechanical action of saliva
   B. Physical change
   C. Evolution
   D. Chemical change

9. The palatine bone furnishes the link between________________?

   A. Maxilla and the sphenoid bone
   B. Sphenoid and the ethmoid bone
   C. Sphenoid and the vomer
   D. None of the above

10. Blood agar is________________?

    A. Simple media
    B. Transport media
    C. Enriched media
    D. Differential media