1. 18/8 stainless steel contains:

Question 1 of 20

2. There are four types of gypsum products approved for use in dentistry. Which of the following types is used rarely today?

Question 2 of 20

3. After mixing powder and liquid in case of alginate impression material, gelation will occur in what time (at room temperature)?

Question 3 of 20

4. Fins and spines in casting are caused by:

Question 4 of 20

5. Use of type II ZOE cement:

Question 5 of 20

6. Principle hardener in gold alloy is

Question 6 of 20

7. Which of the following is true statements regarding the polishing of amalgam?

Question 7 of 20

8. when force is applied perpendicular to the metal surface,resultant deformation is

Question 8 of 20

9. The main component of gypsum bonded investment which provides thermal expansion to compensate for alloy solidification shrinkage is

Question 9 of 20

10. porcelain are made opaque by the addition of oxides of

Question 10 of 20

11. Strength of gypsum is measured as

Question 11 of 20

12. Metal oxides are added to powder of porcelain for

Question 12 of 20

13. Which of the following is known as smart ceramic:

Question 13 of 20

14. Which of the following will produce the most rigid restoration for framework of same dimension

Question 14 of 20

15. the effectiveness of condensation and prevention of porcelain shrinkage is determined by

Question 15 of 20

16. Correct property of the tilite alloy is

Question 16 of 20

17. Wettability can be increased by:

Question 17 of 20

18. Cementation failure of a prosthesis cemented with Zinc Polycarboxylate occurs at:

Question 18 of 20

19. A very active metal which is gas at room temperature is

Question 19 of 20

20. Palladium and platinum are added to base metal alloys to:

Question 20 of 20