PIPEFITTER STAR EXAM WITH VERIFIED
QUESTIONS AND ANSWERS|| GUARANTEED
PASS|| LATEST VERSION 2026
Name three methods of transferring heat. - ANSWER-conduction, convection
and radiant
A neutral reading on a PH scale is ____________. - ANSWER-7.0
Standard atmospheric pressure at sea level is __________________: -
ANSWER-14.7 psia
One gallon of water weighs ______ lbs: - ANSWER-8.33
An increase in pressure will cause the boiling point of water to: - ANSWER-
increase
How is the size of ACR copper tube designated? - ANSWER-actual outside
diameter
An oxyacetylene flame has a peak temperature of about _______°F. -
ANSWER-6300
When a flashback occurs which torch valve should be closed first, oxygen or
acetylene? - ANSWER-oxygen
,In order to close an acetylene pressure regulator, the adjusting screw is turned
_____________ until the tension is off the spring. - ANSWER-counter-
clockwise
Brazing and soldering produce hazards such as: - ANSWER-Fumes, Gases,
Burns, Heat stress, All of the above
A flux used for soldering and brazing must meet the requirements of ASTM
Standard _____. - ANSWER-B813
__________ joints are often used for connecting underground lines. -
ANSWER-flared
A multi-flame heating tip is basically a: - ANSWER-large welding tip
What is the maximum service temperature recommended for copper tube when
brazed joints are used? - ANSWER-350°F
_________________ are used to connect copper tube to other types of piping
material. - ANSWER-adapter
An air-acetylene torch is not generally recommended for a brazed joint with
copper tube larger than ________. - ANSWER-1"
Before a vacuum pump is started, all of the water must be drained from the
pump's receiver. - ANSWER-f
The pressure rating of a blow-down tank must be at least twice the maximum
working pressure of the boiler. - ANSWER-f
,Vaporzation, which occurs below the boiling temperature and only at the
surface of liquid is: - ANSWER-evaporation
With a increase in pressure, the latent heat content of one pound of steam will
decrease. - ANSWER-t
Fier tube and water tube boilers are used as high pressure boilers. - ANSWER-t
The water level in a boiler feed pump receiver is mechanically maintained. -
ANSWER-t
A dry pipe must be used in the design of a boiler to insure the delivery of dry
steam. - ANSWER-f
Swing joints should always be installed in a steam heating system in order to
accommodate expansion of the piping. - ANSWER-t
Vaporization, which occurs throughout a liquid, with bubbles of vapor breaking
through the surface of the liquid is called: - ANSWER-boiling
Reducing the pipe size in a horizontal steam main requires the use of a
concentric reducer. - ANSWER-f
On water tube boilers, how high is the lowest visible part of the sight glass set
above the lowest permissible water level - ANSWER-2"
Elements mounted inside of baseboard radiation units located inside of a
building near the floor line and against the outside wall are now in common use.
- ANSWER-t
, Air is eliminated from a vapor steam heating system by a/an: - ANSWER-Air
eliminator
Superheated steam is steam that is heated above the corresponding saturation
trempature with no increase in pressure. - ANSWER-t
In order to return condensate to a boiler, the height of the water column needed
to overcome the pressure drop in a two-pipe gravity return system is: -
ANSWER-30"
Stop and check valves require steam pressure to open them. - ANSWER-t
Employees shall be provided with the particular personal protective equipment
necessary to protect them from hazards. - ANSWER-t
Screwdrivers are designed for: - ANSWER-turning screws
A pin punch should not be used to start driving out a pin because the punch may
break. - ANSWER-t
A convenient tool for measuring the circumference of a pipe is: - ANSWER-
tape rule
Cables on drain cleaning machines should be siphoned after each use to prevent
damaging effects of drain cleaning compounds. - ANSWER-f
What is the term applied to the total of all the factors which make up the head
against which the pump must operate? - ANSWER-total dynamic head
Water at atmospheric pressure boils at a constant temperature of ______ at sea
level. - ANSWER-212°F
QUESTIONS AND ANSWERS|| GUARANTEED
PASS|| LATEST VERSION 2026
Name three methods of transferring heat. - ANSWER-conduction, convection
and radiant
A neutral reading on a PH scale is ____________. - ANSWER-7.0
Standard atmospheric pressure at sea level is __________________: -
ANSWER-14.7 psia
One gallon of water weighs ______ lbs: - ANSWER-8.33
An increase in pressure will cause the boiling point of water to: - ANSWER-
increase
How is the size of ACR copper tube designated? - ANSWER-actual outside
diameter
An oxyacetylene flame has a peak temperature of about _______°F. -
ANSWER-6300
When a flashback occurs which torch valve should be closed first, oxygen or
acetylene? - ANSWER-oxygen
,In order to close an acetylene pressure regulator, the adjusting screw is turned
_____________ until the tension is off the spring. - ANSWER-counter-
clockwise
Brazing and soldering produce hazards such as: - ANSWER-Fumes, Gases,
Burns, Heat stress, All of the above
A flux used for soldering and brazing must meet the requirements of ASTM
Standard _____. - ANSWER-B813
__________ joints are often used for connecting underground lines. -
ANSWER-flared
A multi-flame heating tip is basically a: - ANSWER-large welding tip
What is the maximum service temperature recommended for copper tube when
brazed joints are used? - ANSWER-350°F
_________________ are used to connect copper tube to other types of piping
material. - ANSWER-adapter
An air-acetylene torch is not generally recommended for a brazed joint with
copper tube larger than ________. - ANSWER-1"
Before a vacuum pump is started, all of the water must be drained from the
pump's receiver. - ANSWER-f
The pressure rating of a blow-down tank must be at least twice the maximum
working pressure of the boiler. - ANSWER-f
,Vaporzation, which occurs below the boiling temperature and only at the
surface of liquid is: - ANSWER-evaporation
With a increase in pressure, the latent heat content of one pound of steam will
decrease. - ANSWER-t
Fier tube and water tube boilers are used as high pressure boilers. - ANSWER-t
The water level in a boiler feed pump receiver is mechanically maintained. -
ANSWER-t
A dry pipe must be used in the design of a boiler to insure the delivery of dry
steam. - ANSWER-f
Swing joints should always be installed in a steam heating system in order to
accommodate expansion of the piping. - ANSWER-t
Vaporization, which occurs throughout a liquid, with bubbles of vapor breaking
through the surface of the liquid is called: - ANSWER-boiling
Reducing the pipe size in a horizontal steam main requires the use of a
concentric reducer. - ANSWER-f
On water tube boilers, how high is the lowest visible part of the sight glass set
above the lowest permissible water level - ANSWER-2"
Elements mounted inside of baseboard radiation units located inside of a
building near the floor line and against the outside wall are now in common use.
- ANSWER-t
, Air is eliminated from a vapor steam heating system by a/an: - ANSWER-Air
eliminator
Superheated steam is steam that is heated above the corresponding saturation
trempature with no increase in pressure. - ANSWER-t
In order to return condensate to a boiler, the height of the water column needed
to overcome the pressure drop in a two-pipe gravity return system is: -
ANSWER-30"
Stop and check valves require steam pressure to open them. - ANSWER-t
Employees shall be provided with the particular personal protective equipment
necessary to protect them from hazards. - ANSWER-t
Screwdrivers are designed for: - ANSWER-turning screws
A pin punch should not be used to start driving out a pin because the punch may
break. - ANSWER-t
A convenient tool for measuring the circumference of a pipe is: - ANSWER-
tape rule
Cables on drain cleaning machines should be siphoned after each use to prevent
damaging effects of drain cleaning compounds. - ANSWER-f
What is the term applied to the total of all the factors which make up the head
against which the pump must operate? - ANSWER-total dynamic head
Water at atmospheric pressure boils at a constant temperature of ______ at sea
level. - ANSWER-212°F
