- (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
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- (A) Decrease its strength and ability to be hardened
- (B) Decrease its tarnish resistance
- (C) Increase its fusion temperature
- (D) Redden the alloy
- (A) ¼ inch
- (B) ½ inch
- (C) 3/8 inch
- (D) one inch
- (A) Ease of construction of denture
- (B) Preserving the sulci
- (C) Ease of pouring an impression
- (D) All of the above
- (A) High quality iron
- (B) Chrome
- (C) Cobalt
- (D) Nickel
- (A) Remove the oxides formed on the gold alloy
- (B) Lower the melting point
- (C) Replace casting wax
- (D) Speed the burnout process
- (A) 19%
- (B) 2%
- (C) 1.7%
- (D) 4%
- (A) Decrease flow
- (B) Continuous expansion
- (C) Relaxation of the internal stresses
- (D) Water loss
- (A) Ti 6Al 4V
- (B) Ti 5Al 4V
- (C) Ti 5Al 5V
- (D) Ti 6Al 6V
- (A) 30% cobalt and 60% chrominum
- (B) 60% cobalt and 30% chrominum
- (C) 1% palladium
- (D) 20% gold
