PIPEFITTER STAR COMPLETE EXAM
REVIEW WITH FULL SOLUTIONS
●● d. 6G
Answer: What weld position is the 45 degree test weld position?
a. 1G
b. 2G
c. 5G
D. 6G
●● c. To chemically clean the surfaces to be soldered or brazed
Answer: What is the primary function of a flux?
a. To create capillary action
b. To lubricate tube ends to aid in cup fitting installation
c. To chemically clean the surfaces to be soldered or brazed
d. To chemically bond the pieces to be joined
●● b. The flux will burn, causing it to become ineffective
Answer: When a soldered joint becomes overheated,
,a. The solder will melt more rapidly and fill the cup more evenly
b. The flux will burn, causing it to become ineffective
c. The flux will burn, but the joint is not effected
d. Switch to a brazing filler metal and continue
●● a. Groove
Answer: What does the "G" indicate in 2G, 5G, and 6G, weld positions
a. Groove
b. Gap
c. Group
d. Gauge
●● a. 250F
Answer: Soldered joints are not recommended for copper tube
installation when the service temperature will exceed
a. 250F
b. 280F
c. 150F
d. 100F
,●● c. To the shoulder of the cup
Answer: How far should the tube end be inserted into a cup-type fitting
when soldering and brazing?
a. A minimum of 1/2 the depth of the cup
b. To the bottom of the cup, minus 1/16" to allow for expansion
c. To the shoulder of the cup
d. To the depth equal to the diameter of the tubing
●● b. Type of current used and type of covering on electrode
Answer: In "E6010", what do the last 2 digits indicate?
a. Weld position
b. Type of current used and type of covering on electrode
c. Tensile strength of the weld metal
d. Amount of alloy in core filler wire
●● b. Argon
Answer: Which of the following gases is used as a shielding gas for GT
AW?
a. Oxygen
b. Argon
, c. Carbon dioxide
d. Compressed air
●● d. Differences are the fluxes, the temperature at which the joints are
made, and the pressures/temperatures of the service
Answer: What are the main differences if any, between soldering and
brazing?
a. In cleaning only; soldering requires typical cleaning while brazing
requires none
b. There are no differences
c. The in-service requirements, brazed joints on refrigeration and
medical gases, all other services are soldered
d. Differences are the fluxes, the temperature at which the joints are
made, and the pressures/temperatures of the service
●● c. Flow of a liquid when drawn to a small space
Answer: How is capillary action defined?
a. Melting of filler metal to solder and/or braze a cup joint
b. Wetting action caused by the heating of flux
c. Flow of a liquid when drawn to a small space
d. Adhesion of filler metal to copper tube joints
REVIEW WITH FULL SOLUTIONS
●● d. 6G
Answer: What weld position is the 45 degree test weld position?
a. 1G
b. 2G
c. 5G
D. 6G
●● c. To chemically clean the surfaces to be soldered or brazed
Answer: What is the primary function of a flux?
a. To create capillary action
b. To lubricate tube ends to aid in cup fitting installation
c. To chemically clean the surfaces to be soldered or brazed
d. To chemically bond the pieces to be joined
●● b. The flux will burn, causing it to become ineffective
Answer: When a soldered joint becomes overheated,
,a. The solder will melt more rapidly and fill the cup more evenly
b. The flux will burn, causing it to become ineffective
c. The flux will burn, but the joint is not effected
d. Switch to a brazing filler metal and continue
●● a. Groove
Answer: What does the "G" indicate in 2G, 5G, and 6G, weld positions
a. Groove
b. Gap
c. Group
d. Gauge
●● a. 250F
Answer: Soldered joints are not recommended for copper tube
installation when the service temperature will exceed
a. 250F
b. 280F
c. 150F
d. 100F
,●● c. To the shoulder of the cup
Answer: How far should the tube end be inserted into a cup-type fitting
when soldering and brazing?
a. A minimum of 1/2 the depth of the cup
b. To the bottom of the cup, minus 1/16" to allow for expansion
c. To the shoulder of the cup
d. To the depth equal to the diameter of the tubing
●● b. Type of current used and type of covering on electrode
Answer: In "E6010", what do the last 2 digits indicate?
a. Weld position
b. Type of current used and type of covering on electrode
c. Tensile strength of the weld metal
d. Amount of alloy in core filler wire
●● b. Argon
Answer: Which of the following gases is used as a shielding gas for GT
AW?
a. Oxygen
b. Argon
, c. Carbon dioxide
d. Compressed air
●● d. Differences are the fluxes, the temperature at which the joints are
made, and the pressures/temperatures of the service
Answer: What are the main differences if any, between soldering and
brazing?
a. In cleaning only; soldering requires typical cleaning while brazing
requires none
b. There are no differences
c. The in-service requirements, brazed joints on refrigeration and
medical gases, all other services are soldered
d. Differences are the fluxes, the temperature at which the joints are
made, and the pressures/temperatures of the service
●● c. Flow of a liquid when drawn to a small space
Answer: How is capillary action defined?
a. Melting of filler metal to solder and/or braze a cup joint
b. Wetting action caused by the heating of flux
c. Flow of a liquid when drawn to a small space
d. Adhesion of filler metal to copper tube joints
