Question: White gold alloy predominantly is______________?

• 1. Gold added with palladium
• 2. Gold added with calcium
• 3. Gold with much of chromium
• 4. Gold with silver

Question: In type II gold alloys _______ Karat gold is used?

• 1. 24 K
• 2. 22 K
• 3. 18 K
• 4. 10 K

Question: The material used in its pure form in dentistry is______________?

• 1. Composite
• 2. Silver
• 3. Gold
• 4. Amalgam

Question: Cohesion of gold foil is an example of______________?

• 1. Atomic attraction and welding
• 2. Annealing
• 3. Wedging
• 4. Adaptation

Question: Average particle size of powdered gold is________________?

• 1. 10 um
• 2. 15 um
• 3. 30 um
• 4. 0.1 um

Question: The pure form of gold used in dentistry is known as___________________?

• 1. Cohesive gold
• 2. Non cohesive gold
• 3. Class I casting gold
• 4. Class IV casting gold

Question: Electralloy is an alloy of________________?

• 1. Gold and Platinum
• 2. Cobalt and Chromium
• 3. Gold and Calcium
• 4. Tin and chromium

Question: The carat for Au foil used for restorations is_______________?

• 1. 18
• 2. 20
• 3. 22
• 4. 24

Question: Direct filling gold formed by electrolytic precipitation is called by all the terms EXCEPT______________?

• 1. Crystalline
• 2. Granular gold
• 3. Mat gold
• 4. Sponge gold

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

• 1. High firing temperature
• 2. Disintegration of opaque layer
• 3. Presence of copper
• 4. Formation of excess oxides