Cohesion of gold foil is an example of______________?

Related Mcqs:

1. The carat for Au foil used for restorations is_______________?

   A. 18
   B. 20
   C. 22
   D. 24

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

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

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

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

4. The cohesive gold used as bulk filler is_____________?

   A. Electra alloy
   B. Mat gold
   C. Spherical gold
   D. Gold foll

5. Powdered gold is___________________?

   A. Made by a combination of chemical precipitation and atomization
   B. Made by electrolytic precipitation
   C. Made by beating pure gold at high temperatures
   D. Made by milling pure gold ingots

6. When Gold fused with porcelain is fired at very high temperature greenish discoloration of cervical margin is due to________________?

   A. High firing temperature
   B. Disintegration of opaque layer
   C. Presence of copper
   D. Formation of excess oxides

7. Direct filling gold formed by electrolytic precipitation is called by all the terms EXCEPT______________?

   A. Crystalline
   B. Granular gold
   C. Mat gold
   D. Sponge gold

8. The pure form of gold used in dentistry is known as___________________?

   A. Cohesive gold
   B. Non cohesive gold
   C. Class I casting gold
   D. Class IV casting gold

9. Average particle size of powdered gold is________________?

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

10. White gold alloy predominantly is______________?

    A. Gold added with palladium
    B. Gold added with calcium
    C. Gold with much of chromium
    D. Gold with silver