A. It prevents the formation of copper oxide
B. It prevents the formation of chromium oxide or dissolves chromic oxide layer
C. It prevents the flow of material in undesirable area
D. Increase the strength of solder
Related Mcqs:
- The solvent flux used for base metal soldering is_______________?
A. Boric acid
A. Borax
B. Fluoride
C. Rouge - Which of the following fuel gases is the best choice of heat source to carry out soldering process ?
A. Propane
B. Acetylene
C. Natural gas
D. Hydrogen - Which of the following fuel gases used for soldering, has the highest heat content______________?
A. Hydrogen
B. Natural gas
C. Acetylene
D. Propane - Fluoride rich materials include ?
A. Silicate cement
B. Glass ionomer cement
C. Polycarboxylate cement
D. All of the above - During soldering, the solidus temperature of the filler material should be_____________?
A. Greater than the substrate material
B. Lesser than the substrate material
C. Equal to the substrate material
D. Temperature not relevant - The main site of fluoride inhibition in the Embden Meyerhof pathway of acid____________?
A. ATPase
B. Enolase
C. Pyruvate Kinase
D. Fructose 6 phosphatase - The range of level of fluoride secreted by the glands into the mouth is_____________?
A. 0.004-0.005 ppm
B. 0.006-0.007 ppm
C. 0.007-0.005 ppm
D. 0.007-0.08 ppm - Maximum fluoride content is seen in_____________?
A. Dental cementum
B. Dental pulp
C. Enamel
D. Dentin - Developing Ameloblasts are effected by the ingestion of high fluoride content water resulting in______________?
A. Turners tooth
B. Hutchinson’s teeth
C. Mottled enamel
D. Moon’s molars - Solder and flux used for joining Elgiloy wires are_____________?
A. Gold solder and borax flux
B. Gold solder and fluoride flux
C. Silver Solder and borax flux
D. Silver solder and fluoride flux
