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
Related Mcqs:
- Average particle size of powdered gold is________________?
A. 10 um
B. 15 um
C. 30 um
D. 0.1 um - In type II gold alloys _______ Karat gold is used?
A. 24 K
B. 22 K
C. 18 K
D. 10 K - The cohesive gold used as bulk filler is_____________?
A. Electra alloy
B. Mat gold
C. Spherical gold
D. Gold foll - 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 - 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 - 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 - Cohesion of gold foil is an example of______________?
A. Atomic attraction and welding
B. Annealing
C. Wedging
D. Adaptation - 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 - 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 - Brinnel hardness number of a dental gold alloy is directly proportional to its______________?
A. Tensile strength
B. Elongation
C. Modulus of elasticity
D. Modulus of resilience
