A. Increases its toughness
B. Increases hardness
C. Increase ductility
D. decreases its toughness
Related Mcqs:
- Chemical tempering in porcelains is done to interrupt crack propagation by______________?
A. Transformation toughening
B. Dispersion of crystalline phase
C. Inducing residual compressive strength
D. All of the above - The maximum carbon content of steel used in dentistry is__________________?
A. 19%
B. 2%
C. 1.7%
D. 4% - Stabilization of stainless steel is achieved by adding____________?
A. Carbon
B. Chromium
C. Nickel
D. Titanium - Stainless steel is used mostly in dentistry_________________?
A. To strength amalgam
B. In orthodontic wires
C. To construct clasps for partial dentures
D. To replace internal gold restorations - 18-B Stainless steel orthodontic wire has_______________?
A. 18% Nickel 8% Chrominum
B. 18% Chromium 8% Nickel
C. 18% Chromium 8% Cobalt
D. 18% Carbon 8% Iron - The component in very minor quantity in stainless steel that changes the properties to a maximum level is____________?
A. Carbon
B. Molybdenum
C. Chromium
D. Nickel - Corrosion of stainless steel is due to formulation of_________________?
A. Chromium carbide
B. Carbon carbide
C. Iron carbide
D. Nickel carbide - Stainless steel orthodontic wire can be hardened by________________?
A. Tempering
B. Work hardening
C. Age hardening
D. Precipitation hardening - Cobalt-Chrominum alloys contains_______________?
A. 30% cobalt and 60% chrominum
B. 60% cobalt and 30% chrominum
C. 1% palladium
D. 20% gold - Who was the first person to introduce cast inlay restoration into dentistry ?
A. William H Taggart
B. Buonocore
C. G.V. Black
D. Bowen
