PIPEFITTER STAR COMPREHENSIVE EXAM
STUDY GUIDE WITH COMPLETE
SOLUTIONS
●● 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
(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
●● 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
●● 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 45o
offset?
STUDY GUIDE WITH COMPLETE
SOLUTIONS
●● 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
(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
●● 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
●● 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 45o
offset?
