Tublulence of molten gold is due to _____________?

Related Mcqs:

All of the following statements about cast cobalt alloy are true EXCEPT_____________?

A. They have a modulus of elasticity twice that of gold alloys B. They are more rigid than gold alloys C. They have higher ductility than gold alloys D. They have a lower proportional limit than gold alloys...

In a patient with allergy to costume jewelry, which of the following is contraindicated______________?

A. High gold B. Low gold C. Palladium – Ag D. Ni – Cr...

Disadvantage of having a short sprue is________________?

A. Rapid solidification of metal B. No place for reservoirs C. Incomplete evacuation of gases D. Difficulty in removing casting from investment...

During soldering, the solidus temperature of the filler material should be_____________?

A. Greater than the substrate material B. Lesser than the substrate material C. Equal to the substrate material D. Temperature not relevant...

Impurities in casting is removed by________________?

A. Annealing B. Degassing C. Pickling D. Conditioning...