Page 1 of 159
PIPEFITTER STAR 2025/2026 FINAL EXAM BANK
COMPLETE CURRENT QUESTIONS AND DETAILED
CORRECT (VERIFIED) ANSWERS FOR GUARANTEED
PASS/TOP-RATED A+.
PIPEFITTER STAR
Ace your Pipefitter STAR Final Exam with this definitive guide,
designed to master advanced piping systems, welding codes,
and complex blueprint interpretation. This resource delivers
practical, scenario-based questions and detailed solutions
aligned with industry standards and certification requirements.
What causes 90% of all construction injuries and deaths and
are used to help OSHA inspectors improve their
effectiveness? ...... ANSWER ....... Focus Hazards
What is the minimum safe working distance for overhead
power lines? ...... ANSWER ....... 10 feet
What is the standard procedure used to safely de-energize
equipment on circuits before they are worked on? ......
ANSWER ....... Lockout/Tagout
, Page 2 of 159
Which of the following is not true about Material Safety Data
Sheets? ...... ANSWER ....... They can be written in any
language
What are the four focus inspections OSHA compliance
officers look for? ...... ANSWER ....... Fall Hazards,
Electrical Hazards, Caught in, Struck by
The sizes of pipe are identified by the measurement called
the: ...... ANSWER ....... Nominal pipe size NPS
Steel pipe is supplied with the following end finish (es): ......
ANSWER ....... PESC, T & C TBE
(All of the above)
What is a typical type of welded pipe joints? ...... ANSWER
....... Butt-welded, Socket-welded, Slip-on Flanged (All
of the above)
List the four principle functions of valves. ...... ANSWER
....... Start/Stop, Regulate/Throttle, Relief, Reduce
, Page 3 of 159
Regulating or throttling flow is done with a: ...... ANSWER
....... Both B and C, (globe and gate valve)
Name the two basic types of check valves. ...... ANSWER
....... Lift and Swing
The most common hanger used in piping systems is the:
...... ANSWER ....... Clevis
Never expose any part of a compressed gas cylinder to
temperatures above: ...... ANSWER ....... 125°F
The four types of copper tube joints are soldered, brazed,
flared and _____? ...... ANSWER ....... compression
What is the maximum recommended service temperature
when a brazed joint is used? ...... ANSWER ....... 350
degrees F
Poor alignment of tube joints will cause: ...... ANSWER
....... spacing difference between tubes and fittings
, Page 4 of 159
After fittings and tubes are cleaned and fluxed they should
be assembled and soldered: ...... ANSWER ....... as soon
as possible
Name three basic hitches which can be used for lifting with
a sling ...... ANSWER ....... Straight, Choker, Basket
Which hitch can support the most weight? ...... ANSWER
....... Basket hitch
Why should the angle between the leg of a sling and the load
never be less than 30 degrees? ...... ANSWER ....... More
stress loads are applied on slings.
What is the weakest part of a chain hoist? ...... ANSWER
....... Lower hook
An oxyacetylene flame has a peak temperature of
approximately: ...... ANSWER ....... 6300°F
What is the purpose of slightly opening/cracking a gas
cylinder valve before installing a gas regulator? ......
ANSWER ....... clear debris
PIPEFITTER STAR 2025/2026 FINAL EXAM BANK
COMPLETE CURRENT QUESTIONS AND DETAILED
CORRECT (VERIFIED) ANSWERS FOR GUARANTEED
PASS/TOP-RATED A+.
PIPEFITTER STAR
Ace your Pipefitter STAR Final Exam with this definitive guide,
designed to master advanced piping systems, welding codes,
and complex blueprint interpretation. This resource delivers
practical, scenario-based questions and detailed solutions
aligned with industry standards and certification requirements.
What causes 90% of all construction injuries and deaths and
are used to help OSHA inspectors improve their
effectiveness? ...... ANSWER ....... Focus Hazards
What is the minimum safe working distance for overhead
power lines? ...... ANSWER ....... 10 feet
What is the standard procedure used to safely de-energize
equipment on circuits before they are worked on? ......
ANSWER ....... Lockout/Tagout
, Page 2 of 159
Which of the following is not true about Material Safety Data
Sheets? ...... ANSWER ....... They can be written in any
language
What are the four focus inspections OSHA compliance
officers look for? ...... ANSWER ....... Fall Hazards,
Electrical Hazards, Caught in, Struck by
The sizes of pipe are identified by the measurement called
the: ...... ANSWER ....... Nominal pipe size NPS
Steel pipe is supplied with the following end finish (es): ......
ANSWER ....... PESC, T & C TBE
(All of the above)
What is a typical type of welded pipe joints? ...... ANSWER
....... Butt-welded, Socket-welded, Slip-on Flanged (All
of the above)
List the four principle functions of valves. ...... ANSWER
....... Start/Stop, Regulate/Throttle, Relief, Reduce
, Page 3 of 159
Regulating or throttling flow is done with a: ...... ANSWER
....... Both B and C, (globe and gate valve)
Name the two basic types of check valves. ...... ANSWER
....... Lift and Swing
The most common hanger used in piping systems is the:
...... ANSWER ....... Clevis
Never expose any part of a compressed gas cylinder to
temperatures above: ...... ANSWER ....... 125°F
The four types of copper tube joints are soldered, brazed,
flared and _____? ...... ANSWER ....... compression
What is the maximum recommended service temperature
when a brazed joint is used? ...... ANSWER ....... 350
degrees F
Poor alignment of tube joints will cause: ...... ANSWER
....... spacing difference between tubes and fittings
, Page 4 of 159
After fittings and tubes are cleaned and fluxed they should
be assembled and soldered: ...... ANSWER ....... as soon
as possible
Name three basic hitches which can be used for lifting with
a sling ...... ANSWER ....... Straight, Choker, Basket
Which hitch can support the most weight? ...... ANSWER
....... Basket hitch
Why should the angle between the leg of a sling and the load
never be less than 30 degrees? ...... ANSWER ....... More
stress loads are applied on slings.
What is the weakest part of a chain hoist? ...... ANSWER
....... Lower hook
An oxyacetylene flame has a peak temperature of
approximately: ...... ANSWER ....... 6300°F
What is the purpose of slightly opening/cracking a gas
cylinder valve before installing a gas regulator? ......
ANSWER ....... clear debris
