Average particle size of powdered gold is________________?

Related Mcqs:

1. 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...

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

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

3. The cohesive gold used as bulk filler is_____________?

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

4. 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...

5. 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...

6. 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...

7. Cohesion of gold foil is an example of______________?

   A. Atomic attraction and welding B. Annealing C. Wedging D. Adaptation...

8. 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...

9. Finer particle size of silica______________?

   A. Slower the hygroscopic expansion B. Greater the hygroscopic expansion C. Normal setting expansion D. No setting expansion...

10. 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...