Page 1 of 216
Pipefitter Star Exam (2 VERSIONS) ALL 1000+
QUESTIONS AND CORRECT ANSWERS LATEST
UPDATE THIS YEAR
Pipefitter Star Exam
QUESTION: What does the "G" indicate in 2G, 5G, and 6G, weld positions
a. Groove
b. Gap
c. Group
d. Gauge - ANSWER-a. Groove
QUESTION: Soldered joints are not recommended for copper tube installation when the service
temperature will exceed
a. 250F
b. 280F
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c. 150F
d. 100F - ANSWER-a. 250F
QUESTION: 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 - ANSWER-c. To the shoulder of the cup
QUESTION: 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
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d. Amount of alloy in core filler wire - ANSWER-b. Type of current used and type of covering on
electrode
QUESTION: Which of the following gases is used as a shielding gas for GT AW?
a. Oxygen
b. Argon
c. Carbon dioxide
d. Compressed air - ANSWER-b. Argon
Q; Why may flux be omitted when brazing copper tube to wrought copper fittings?
a. this is not a true statement; flux must always be used
b. The temperature at which brazing is done eliminates the need for flux
c. The flux is in the copper tube and fittings
d. The filler metal is self fluxing - ANSWER-d. The filler metal is self fluxing
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QUESTION: What weld position is the 45 degree test weld position?
a. 1G
b. 2G
c. 5G
D. 6G - ANSWER-d. 6G
QUESTION: 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 - ANSWER-c. To chemically clean the surfaces to
be soldered or brazed
QUESTION: When a soldered joint becomes overheated,
4
Pipefitter Star Exam (2 VERSIONS) ALL 1000+
QUESTIONS AND CORRECT ANSWERS LATEST
UPDATE THIS YEAR
Pipefitter Star Exam
QUESTION: What does the "G" indicate in 2G, 5G, and 6G, weld positions
a. Groove
b. Gap
c. Group
d. Gauge - ANSWER-a. Groove
QUESTION: Soldered joints are not recommended for copper tube installation when the service
temperature will exceed
a. 250F
b. 280F
1
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c. 150F
d. 100F - ANSWER-a. 250F
QUESTION: 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 - ANSWER-c. To the shoulder of the cup
QUESTION: 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
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d. Amount of alloy in core filler wire - ANSWER-b. Type of current used and type of covering on
electrode
QUESTION: Which of the following gases is used as a shielding gas for GT AW?
a. Oxygen
b. Argon
c. Carbon dioxide
d. Compressed air - ANSWER-b. Argon
Q; Why may flux be omitted when brazing copper tube to wrought copper fittings?
a. this is not a true statement; flux must always be used
b. The temperature at which brazing is done eliminates the need for flux
c. The flux is in the copper tube and fittings
d. The filler metal is self fluxing - ANSWER-d. The filler metal is self fluxing
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QUESTION: What weld position is the 45 degree test weld position?
a. 1G
b. 2G
c. 5G
D. 6G - ANSWER-d. 6G
QUESTION: 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 - ANSWER-c. To chemically clean the surfaces to
be soldered or brazed
QUESTION: When a soldered joint becomes overheated,
4
