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
Related Mcqs:
- Heat hardening is the process done at_______________?
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 - The maxillary air sinus opens into middle meatus at______________?
A. Infundibulum
B. Summit of infundibulum
C. Bulla ethmoidalis
D. Hiatus semilunaris - In adults, the spinal cord normal ends at______________?
A. Lower border of LI
B. Lower border of L3
C. Lower border of S1
D. Lower border of L5 - Common cartotia artery divides to ICA & ECA at______________?
A. Cricoid cartilage
B. Thyroid cartilage
C. 1st tracheal ring
D. Cricothyroid membrane - A six- year molar begins to calcify at______________?
A. Six months IU
B. At birth
C. 1 years after birth
D. 3 years age - Maxillary primary cuspid enamel completion takes place at______________?
A. 6 months in utero
B. 6 months after birth
C. 9 months in utero
D. 9 months after birth - Translation occurs at______________?
A. Mitochondria
B. Centrosome
C. Nucleus
D. Ribosome - Width of the periodontal ligament is least at______________?
A. Cervical third
B. Apical third
C. Fulcrum of rotation
D. It has uniform width - Oral thrush develops in infants at______________?
A. 6 days
B. 2-6 weeks
C. 10-12 weeks
D. 18 mouths - Hardening solutions are used with impression made of________________?
A. Hydrocolloid
B. Impression compound
C. Elastomer
D. Zinc oxide eugenol
