Brazing, Soldering, and Resistance
Methods: Techniques, Advantages, and
Materials Exam UPDATED QUESTIONS
AND CORRECT ANSWERS
What temperature does brazing occur at? - CORRECT ANSWER Above 840°F (450°C)
What is the required joint spacing for brazing? - CORRECT ANSWER Approximately 0.025
in. (0.6 mm) to 0.002 in. (0.06 mm)
What phenomenon allows filler metal to be drawn into a brazed joint? - CORRECT
ANSWER Capillary action
What is the main difference between brazing and braze welding? - CORRECT ANSWER Braze
welding does not require capillary action to pull filler metal into the joint.
At what temperature does soldering occur? - CORRECT ANSWER Below 840°F (450°C)
How does capillary action affect the strength of a soldered joint? - CORRECT ANSWER It
increases the joint strength several times greater than the solder itself.
What are the advantages of brazing and soldering? - CORRECT ANSWER They can create
permanent or temporary joints, allow for disassembly, and increase tensile strength.
What is shear strength in the context of brazed or soldered joints? - CORRECT ANSWER It is
the ability of a joint to withstand a force parallel to the joint, dependent on the overlapping area.
What determines the corrosion resistance of a joint? - CORRECT ANSWER The compatibility
of the base materials with the filler metal.
What are the three major functions of fluxes in brazing and soldering? - CORRECT
ANSWER Remove oxides, promote wetting, and aid in capillary action.
Methods: Techniques, Advantages, and
Materials Exam UPDATED QUESTIONS
AND CORRECT ANSWERS
What temperature does brazing occur at? - CORRECT ANSWER Above 840°F (450°C)
What is the required joint spacing for brazing? - CORRECT ANSWER Approximately 0.025
in. (0.6 mm) to 0.002 in. (0.06 mm)
What phenomenon allows filler metal to be drawn into a brazed joint? - CORRECT
ANSWER Capillary action
What is the main difference between brazing and braze welding? - CORRECT ANSWER Braze
welding does not require capillary action to pull filler metal into the joint.
At what temperature does soldering occur? - CORRECT ANSWER Below 840°F (450°C)
How does capillary action affect the strength of a soldered joint? - CORRECT ANSWER It
increases the joint strength several times greater than the solder itself.
What are the advantages of brazing and soldering? - CORRECT ANSWER They can create
permanent or temporary joints, allow for disassembly, and increase tensile strength.
What is shear strength in the context of brazed or soldered joints? - CORRECT ANSWER It is
the ability of a joint to withstand a force parallel to the joint, dependent on the overlapping area.
What determines the corrosion resistance of a joint? - CORRECT ANSWER The compatibility
of the base materials with the filler metal.
What are the three major functions of fluxes in brazing and soldering? - CORRECT
ANSWER Remove oxides, promote wetting, and aid in capillary action.
