A. Tensile strength
B. Proportional limit
C. Ductility
D. Hardness
Related Mcqs:
- Which of the following statements about high copper silver alloy compared to conventional alloy is not true ?
A. It has increased tensile and compressive strength
B. It has poor tarnish and corrosion resistance
C. It’s edge strength is greater
D. Mercury content in the final restoration is less - The ideal temperature of water bath for softening fluid wax is about________________?
A. 51 to 54 degree F
B. 51 to 54 degree C
C. 70 to 75 degree F
D. 70 to 75 degree C - The term ordered hardening heat treatment used in which of the following dental alloys ?
A. Gold-Copper
B. Nickel-Chromium
C. Nickel-Titanium
D. Silver-Palladium - The effects associated with cold working can be eliminated by a heat treatment called______________?
A. Age hardening heat treatment
B. Annealing heat treatment
C. Homogenization heat treatment
D. Solution heat treatment - 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 - Addition of large amounts of platinum to a casting gold alloy will________________?
A. Decrease its strength and ability to be hardened
B. Decrease its tarnish resistance
C. Increase its fusion temperature
D. Redden the alloy - The yield strength of AUstenite (NiTi alloy) is______________?
A. 100 Mpa
B. 240 Mpa
C. 560 Mpa
D. 700 Mpa - Percentage of gold in high noble alloy is______________?
A. N 25%
B. 25%
C. >40%
D. 0% - Microstructure of cobalt chromium alloy in cast condition is______________?
A. Fibrous
B. Homogeneous
C. Inhomogenous
D. amorphous - Austenite is an alloy of iron of and carbon with the iron in______________?
A. Alpha form
B. Beta form
C. Gamma form
D. None of the above
