indirect metallic restoration part 1

how to avoid carbon pick up during casting in base metal alloys ?

the hardest type of gold alloy is

• Type |
• Type ||
• Type |||
• Type |V

the type that has the least amount of copper is

• Type |
• Type ||
• Type |||
• Type |V

G.R . adding copper to gold elevate the strength and decrease the ductility

the classification of gold alloy according to mechanical properties is suitable for dentistry

• True
• False

Indirect restorations done by casting & solid solution alloy

• True
• False

Precious metal are

Metals are classified into

• Noble metals
• Precious metals
• Base metals
• All of the above

which one of the following has the highest percentage of noble metal content

• Noble metal alloys
• High noble metal alloys
• Predominantly base metal alloys
• Non of the above

predominantly base metal alloys their noble metal content is ………………& their base metals are……………..