Which of the following cast gold alloys is used for fabricating partial denture frameworks______________?

Related Mcqs:

1. The castability of chromium-cobait base metal alloys when compared to gold based noble metal alloys is_______________?

   A. More
   B. Less
   C. Equal
   D. Depends on the alloy type

2. In type II gold alloys _______ Karat gold is used?

   A. 24 K
   B. 22 K
   C. 18 K
   D. 10 K

3. The pattern for the metallic framework of a removable partial denture is fabricated from________________?

   A. Inlay wax type-II
   B. Boxing wax
   C. Modelling wax
   D. Casting wax

4. Which of the following physical property can be used to estimate indirectly the proportional limit of gold alloys ?

   A. Vickers’s hardness number
   B. Knoop hardness number
   C. Brinell hardness number
   D. Rockwell hardness number

5. Reduction in the fusion temperature of dental gold casting alloys is caused by presence of______________?

   A. Platinum
   B. Copper
   C. Silver
   D. Gold

6. Nickel is added to wrought gold alloys as______________?

   A. Strengtherner
   B. Hardener
   C. Whitens the alloy
   D. Scavenger

7. The gold alloys used for casting contain at least…. percent of precious metal according to ADA specification number 5________________?

   A. 55
   B. 65
   C. 75
   D. 85

8. The impression for a diagnostic cast of a partial edentulous mouth should be taken in_______________?

   A. Impression wax
   B. Modelling compound
   C. Hydro-colloid
   D. Hydro cal

9. Within an hour after cementation of cast gold onlay patient complains of shooting pain every time the teeth comes together Most probable explanation is ______________?

   A. Supracocclusion of restoration
   B. Retained cement in gingival sulcus
   C. Excess acid in mix
   D. Galvanic current caused by gold onlay occluding with a large restoration

10. The latest method of curing denture base resins______________?

    A. Heat
    B. Visible light
    C. Chemicals
    D. Lasers