Rhode Island Master Pipefitter Exam
Questions And Correct Answers
Welder will get full penetration of first pass
What is the purpose of the 1/8" root spacing on butt weld fitting?
22 1/2 degrees
What angle do you cut the pipe for a 3 piece elbow?
Change the range of variable type
What is the purpose of a transformer?
True
Can smaller size pipe sometimes be used by using a larger size pump?
True
A pipe saddle is used to protect the pipe insulation from damage?
,AC/DC
At what current is a 60-11 weld rod used?
Concentric Reducer, Reducing Tee, Reducing Elbow
Name 3 weld reducing fittings.
1.41 x run
What formula do you use on a 45% offset?
To prevent a boiler from draining out
What is the purpose of a Hartford Loop?
False
Turbulence in a heat exchanger or thermal converter increase the heat.
Gate Valve
In a horizontal positioned drain line what is the proper valve?
, False
A flared joint and a compression joint are the same.
Thermocouple
In a gas system a safety valve responds to a
High Pressure
In a gas system when is welded pipe preferred over threaded pipe?
1 1/2 the diameter
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
To find the circumference of a pipe
1/16
The space from end of pipe to shoulder of socket weld fitting is
Questions And Correct Answers
Welder will get full penetration of first pass
What is the purpose of the 1/8" root spacing on butt weld fitting?
22 1/2 degrees
What angle do you cut the pipe for a 3 piece elbow?
Change the range of variable type
What is the purpose of a transformer?
True
Can smaller size pipe sometimes be used by using a larger size pump?
True
A pipe saddle is used to protect the pipe insulation from damage?
,AC/DC
At what current is a 60-11 weld rod used?
Concentric Reducer, Reducing Tee, Reducing Elbow
Name 3 weld reducing fittings.
1.41 x run
What formula do you use on a 45% offset?
To prevent a boiler from draining out
What is the purpose of a Hartford Loop?
False
Turbulence in a heat exchanger or thermal converter increase the heat.
Gate Valve
In a horizontal positioned drain line what is the proper valve?
, False
A flared joint and a compression joint are the same.
Thermocouple
In a gas system a safety valve responds to a
High Pressure
In a gas system when is welded pipe preferred over threaded pipe?
1 1/2 the diameter
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
To find the circumference of a pipe
1/16
The space from end of pipe to shoulder of socket weld fitting is
