A. Sand
B. Silicon arbide
C. Diamond
D. Aluminum oxide
Related Mcqs:
- Clogging of an abrasive wheel with debris causing reduction of abrasive action is called________________?
A. Blinding
B. Buffing
C. Dressing
D. Truing - Machineable glass ceramic is________________?
A. Cerestore
B. Decor MGC
C. Infusium
D. Leucite - Flux used in dental ceramic is________________?
A. Alumina
B. Silica
C. Kaolin
D. Boric oxide - Electrolyte used for plating copper dies is________________?
A. Ionic copper
B. Copper cyanide
C. Silver cyanide
D. Acidic copper sulphate - Crocus cloth is________________?
A. Emery
B. Garnet
C. Pumice
D. Rouge - Coefficient of thermal expansion of metal-ceramic alloys is________________?
A. Same as porcelain
B. More than porcelain
C. Less than porcelain
D. More than or equal to porcelain but not less - The main purpose of adding metallic oxides in ceramic is________________?
A. Colour matching
B. Transparency
C. Opacity
D. None of the above - Final product in alginate is________________?
A. Sodium alginate
B. Potassium alginate
C. Trisodium phosphate
D. Calcium alginate - The most commonly used Titanium alloy for dental and medical purposes is________________?
A. Ti 6Al 4V
B. Ti 5Al 4V
C. Ti 5Al 5V
D. Ti 6Al 6V - 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
