PIPEFITTER STAR COMPREHENSIVE TEST
PAPER 2026 COMPLETE ANSWERS
ACCURATE
⫸ 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
⫸ 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
Plain End Square cut, Threaded and Coupled, Threaded Both ends
,⫸ 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
⫸ Regulating or throttling flow is done with a: Answer: 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
,⫸ 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
⫸ Why is it important to ensure that no part of the oxygen handling
equipment comes in contact with oil? Answer: causes an explosion
, ⫸ What is the constant used to find the travel with a 45 degree offset?
Answer: 1.414
⫸ What is the constant used to find the offset or advance with a 45
offset? Answer: .707
⫸ Change the following to architectural measurements 3.96': Answer: 3'
- 11 ½"
⫸ MSDS is part of the "right to know" law. Answer: t
⫸ IDLH is an individual's daily level of hazards Answer: f
⫸ Inhalation, ingestion, absorption and injection are four routes of
entry. Answer: t
⫸ When voltage is applied to a conductor, free electrons: Answer: Are
impelled along the conductor
⫸ The magnetic field around a current-carrying wire: Answer: Exists at
all points along its length
⫸ A lamp has a source of 110 volts and current of 0.9 amps, what is the
resistance of the lamp? Answer: 122.2 ohms
PAPER 2026 COMPLETE ANSWERS
ACCURATE
⫸ 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
⫸ 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
Plain End Square cut, Threaded and Coupled, Threaded Both ends
,⫸ 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
⫸ Regulating or throttling flow is done with a: Answer: 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
,⫸ 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
⫸ Why is it important to ensure that no part of the oxygen handling
equipment comes in contact with oil? Answer: causes an explosion
, ⫸ What is the constant used to find the travel with a 45 degree offset?
Answer: 1.414
⫸ What is the constant used to find the offset or advance with a 45
offset? Answer: .707
⫸ Change the following to architectural measurements 3.96': Answer: 3'
- 11 ½"
⫸ MSDS is part of the "right to know" law. Answer: t
⫸ IDLH is an individual's daily level of hazards Answer: f
⫸ Inhalation, ingestion, absorption and injection are four routes of
entry. Answer: t
⫸ When voltage is applied to a conductor, free electrons: Answer: Are
impelled along the conductor
⫸ The magnetic field around a current-carrying wire: Answer: Exists at
all points along its length
⫸ A lamp has a source of 110 volts and current of 0.9 amps, what is the
resistance of the lamp? Answer: 122.2 ohms
