Rhode Island Master Pipefitter Exam
2025 With 100% Correct Answers
Welder will get full penetration of first pass - correct answers ✔✔What is the purpose of the 1/8" root
spacing on butt weld fitting?
22 1/2 degrees - correct answers ✔✔What angle do you cut the pipe for a 3 piece elbow?
Change the range of variable type - correct answers ✔✔What is the purpose of a transformer?
True - correct answers ✔✔Can smaller size pipe sometimes be used by using a larger size pump?
True - correct answers ✔✔A pipe saddle is used to protect the pipe insulation from damage?
AC/DC - correct answers ✔✔At what current is a 60-11 weld rod used?
Concentric Reducer, Reducing Tee, Reducing Elbow - correct answers ✔✔Name 3 weld reducing fittings.
1.41 x run - correct answers ✔✔What formula do you use on a 45% offset?
To prevent a boiler from draining out - correct answers ✔✔What is the purpose of a Hartford Loop?
False - correct answers ✔✔Turbulence in a heat exchanger or thermal converter increase the heat.
Gate Valve - correct answers ✔✔In a horizontal positioned drain line what is the proper valve?
False - correct answers ✔✔A flared joint and a compression joint are the same.
, Thermocouple - correct answers ✔✔In a gas system a safety valve responds to a
High Pressure - correct answers ✔✔In a gas system when is welded pipe preferred over threaded pipe?
1 1/2 the diameter - correct answers ✔✔From the end of the fitting to centerline what is the
measurement of a STD (long Radius) 90 degree weld elbow?
Diameter X 3.14 - correct answers ✔✔To find the circumference of a pipe
1/16 - correct answers ✔✔The space from end of pipe to shoulder of socket weld fitting is
Feed water side against bottom of seat - correct answers ✔✔Locate a globe valve in a feed water system
Too much heat/wrong polarity - correct answers ✔✔What causes excessive weld spatter?
Protect insulation - correct answers ✔✔Why is a saddle installed on a pipe?
Top of Boiler - correct answers ✔✔Where is the pressure gauge on a boiler?
Siphon - correct answers ✔✔What is between pressure gauge and piping?
True - correct answers ✔✔When threading a pipe the pipe should be reamed before threading is
started.
True - correct answers ✔✔The O.D. of pipe stands for outside diameter and the I.D. stands for inside
diameter.
False - correct answers ✔✔All pipe sizes have the same wall thickness.
2025 With 100% Correct Answers
Welder will get full penetration of first pass - correct answers ✔✔What is the purpose of the 1/8" root
spacing on butt weld fitting?
22 1/2 degrees - correct answers ✔✔What angle do you cut the pipe for a 3 piece elbow?
Change the range of variable type - correct answers ✔✔What is the purpose of a transformer?
True - correct answers ✔✔Can smaller size pipe sometimes be used by using a larger size pump?
True - correct answers ✔✔A pipe saddle is used to protect the pipe insulation from damage?
AC/DC - correct answers ✔✔At what current is a 60-11 weld rod used?
Concentric Reducer, Reducing Tee, Reducing Elbow - correct answers ✔✔Name 3 weld reducing fittings.
1.41 x run - correct answers ✔✔What formula do you use on a 45% offset?
To prevent a boiler from draining out - correct answers ✔✔What is the purpose of a Hartford Loop?
False - correct answers ✔✔Turbulence in a heat exchanger or thermal converter increase the heat.
Gate Valve - correct answers ✔✔In a horizontal positioned drain line what is the proper valve?
False - correct answers ✔✔A flared joint and a compression joint are the same.
, Thermocouple - correct answers ✔✔In a gas system a safety valve responds to a
High Pressure - correct answers ✔✔In a gas system when is welded pipe preferred over threaded pipe?
1 1/2 the diameter - correct answers ✔✔From the end of the fitting to centerline what is the
measurement of a STD (long Radius) 90 degree weld elbow?
Diameter X 3.14 - correct answers ✔✔To find the circumference of a pipe
1/16 - correct answers ✔✔The space from end of pipe to shoulder of socket weld fitting is
Feed water side against bottom of seat - correct answers ✔✔Locate a globe valve in a feed water system
Too much heat/wrong polarity - correct answers ✔✔What causes excessive weld spatter?
Protect insulation - correct answers ✔✔Why is a saddle installed on a pipe?
Top of Boiler - correct answers ✔✔Where is the pressure gauge on a boiler?
Siphon - correct answers ✔✔What is between pressure gauge and piping?
True - correct answers ✔✔When threading a pipe the pipe should be reamed before threading is
started.
True - correct answers ✔✔The O.D. of pipe stands for outside diameter and the I.D. stands for inside
diameter.
False - correct answers ✔✔All pipe sizes have the same wall thickness.
