A. At right angle
B. At 45°C angle
C. At obtuse angle
D. It depend upon type of wax pattern
A. 25%
B. 50%
C. 75%
D. 100%
A. Under vacuum in argon atmosphere
B. Under air pressure in nitrogen atmosphere
C. In specially fabricated aluminium vanadium
D. Using CAD-CAM technique
A. Heating 750°C and slowly cooling to zero degree
B. Heating quickly upto 450°C followed by sudden quenching
C. Heating upto 250°C for 15 to 30 min
D. Heating at 750°C and then quenching to room temperature
A. Carbon crucible
B. Clay crucible
C. Quartz crucible
D. High melting plastic crucible
A. Quartz
B. Cristobalite
C. Tridymite
D. Corundum
A. Cr, Al, Ti
B. Cr, Mo, Ti
C. Cr, Gold, Ti
D. Cr, Fe, Ti
A. Primary impression
B. Corrective impressions
C. Impression of single tooth
D. None of the above
A. Copper cynide
B. Ionic copper
C. Acidic copper sulfate
D. Silver cyanide
A. To strength amalgam
B. In orthodontic wires
C. To construct clasps for partial dentures
D. To replace internal gold restorations