Gases dissolved in molten metals are liberated when cooled giving rise to________________?
A. Suckback porosity
B. Gas inclusion porosity
C. Localized shrinkage porosity
D. Microporosity
A. Suckback porosity
B. Gas inclusion porosity
C. Localized shrinkage porosity
D. Microporosity
A. Heating up to 200 – 450°C for 15 – 30 min and quenching in water
B. Heating at 700°C for 10 – 15 min and quenching in water
C. Heating at 700°C for 1 hour and quenching in water
D. Heating above 700°C for 30 min and quenching in water
A. T1 N1 Mo
B. T2 N2 Mo
C. T3 N1 Mo
D. T4 N2 Mo
A. Fourth
B. Seventh
C. Third
D. Ninth
A. Decline plasma calcium level
B. Decrease in plasma phosphate level
C. Neuromuscular hyperexcitability
D. hypo calcemic tetany
A. Permanent third molar
B. Permanent second premolar
C. Permanent lateral incisor
D. Permanent Canine
A. Inner enamel epithelium
B. Outer enamel epithelium
C. Stellate reticulum
D. Stratum intermedium