RHODE ISLAND MASTER PIPEFITTER
COMPREHENSIVE EXAMINATION TEST
2026 COMPLETE ANSWERS VERIFIED
⩥ What is the purpose of the 1/8" root spacing on butt weld fitting?
Answer: 1/8" root spacing
⩥ What angle do you cut the pipe for a 3 piece elbow? Answer: 22
1/2 degrees
⩥ Change the range of variable type. Answer: Purpose of a
transformer
⩥ Can smaller size pipe sometimes be used by using a larger size
pump? Answer: Smaller size pipe with larger pump
⩥ A pipe saddle is used to protect the pipe insulation from damage.
Answer: Pipe saddle
⩥ At what current is a 60-11 weld rod used? Answer: AC/DC
⩥ Concentric Reducer, Reducing Tee, Reducing Elbow. Answer:
Weld reducing fittings
,⩥ 1.41 x run. Answer: Formula for 45% offset
⩥ To prevent a boiler from draining out. Answer: Purpose of a
Hartford Loop
⩥ False - Turbulence in a heat exchanger or thermal converter
increase the heat. Answer: Turbulence in a heat exchanger
⩥ Gate Valve. Answer: Proper valve in drain line
⩥ False - A flared joint and a compression joint are the same.
Answer: Flared joint and compression joint
⩥ Thermocouple. Answer: Safety valve in gas system
⩥ High Pressure - In a gas system when is welded pipe preferred over
threaded pipe? Answer: Welded pipe vs threaded pipe
⩥ 1 1/2 the diameter. Answer: Measurement of STD (long Radius) 90
degree weld elbow
⩥ Diameter X 3.14. Answer: Circumference of a pipe
,⩥ 1/16. Answer: Space from end of pipe to shoulder of socket weld
fitting
⩥ Feed water side against bottom of seat. Answer: Globe valve in
feed water system
⩥ Too much heat/wrong polarity. Answer: Excessive weld spatter
⩥ Protect insulation. Answer: Saddle installed on a pipe
⩥ Top of Boiler. Answer: Pressure gauge on a boiler
⩥ What is between pressure gauge and piping? Answer: Siphon
⩥ True - When threading a pipe the pipe should be reamed before
threading is started. Answer: Reaming pipe before threading
⩥ True - The O.D. of pipe stands for outside diameter and the I.D.
stands for inside diameter. Answer: O.D. and I.D. of pipe
⩥ False - All pipe sizes have the same wall thickness. Answer: Wall
thickness of pipe sizes
, ⩥ False - It is not necessary to check the position of the bolt holes on
a set of companion flanges when making a flange joint connection.
Answer: Bolt holes on companion flanges
⩥ False - A ring gasket must have the bolt holes to match the bolt
hole in the flange connection. Answer: Ring gasket and bolt holes
⩥ False - A compression joint is also known as a flared joint. Answer:
Compression joint and flared joint
⩥ True - A welded joint is superior to a screw joint. Answer: Welded
joint vs screw joint
⩥ True - Gate valves, as a rule, should be either fully open or fully
closed. Answer: Gate valves usage
⩥ False - A globe valve has very little resistance to flow. Answer:
Globe valve resistance to flow
⩥ False - A valve marked only 200 *** may be used for steam
service. Answer: Valve marked 200 ***
⩥ Lug Type - There are three different types of butterfly valves.
Name one. Answer: Types of butterfly valves
COMPREHENSIVE EXAMINATION TEST
2026 COMPLETE ANSWERS VERIFIED
⩥ What is the purpose of the 1/8" root spacing on butt weld fitting?
Answer: 1/8" root spacing
⩥ What angle do you cut the pipe for a 3 piece elbow? Answer: 22
1/2 degrees
⩥ Change the range of variable type. Answer: Purpose of a
transformer
⩥ Can smaller size pipe sometimes be used by using a larger size
pump? Answer: Smaller size pipe with larger pump
⩥ A pipe saddle is used to protect the pipe insulation from damage.
Answer: Pipe saddle
⩥ At what current is a 60-11 weld rod used? Answer: AC/DC
⩥ Concentric Reducer, Reducing Tee, Reducing Elbow. Answer:
Weld reducing fittings
,⩥ 1.41 x run. Answer: Formula for 45% offset
⩥ To prevent a boiler from draining out. Answer: Purpose of a
Hartford Loop
⩥ False - Turbulence in a heat exchanger or thermal converter
increase the heat. Answer: Turbulence in a heat exchanger
⩥ Gate Valve. Answer: Proper valve in drain line
⩥ False - A flared joint and a compression joint are the same.
Answer: Flared joint and compression joint
⩥ Thermocouple. Answer: Safety valve in gas system
⩥ High Pressure - In a gas system when is welded pipe preferred over
threaded pipe? Answer: Welded pipe vs threaded pipe
⩥ 1 1/2 the diameter. Answer: Measurement of STD (long Radius) 90
degree weld elbow
⩥ Diameter X 3.14. Answer: Circumference of a pipe
,⩥ 1/16. Answer: Space from end of pipe to shoulder of socket weld
fitting
⩥ Feed water side against bottom of seat. Answer: Globe valve in
feed water system
⩥ Too much heat/wrong polarity. Answer: Excessive weld spatter
⩥ Protect insulation. Answer: Saddle installed on a pipe
⩥ Top of Boiler. Answer: Pressure gauge on a boiler
⩥ What is between pressure gauge and piping? Answer: Siphon
⩥ True - When threading a pipe the pipe should be reamed before
threading is started. Answer: Reaming pipe before threading
⩥ True - The O.D. of pipe stands for outside diameter and the I.D.
stands for inside diameter. Answer: O.D. and I.D. of pipe
⩥ False - All pipe sizes have the same wall thickness. Answer: Wall
thickness of pipe sizes
, ⩥ False - It is not necessary to check the position of the bolt holes on
a set of companion flanges when making a flange joint connection.
Answer: Bolt holes on companion flanges
⩥ False - A ring gasket must have the bolt holes to match the bolt
hole in the flange connection. Answer: Ring gasket and bolt holes
⩥ False - A compression joint is also known as a flared joint. Answer:
Compression joint and flared joint
⩥ True - A welded joint is superior to a screw joint. Answer: Welded
joint vs screw joint
⩥ True - Gate valves, as a rule, should be either fully open or fully
closed. Answer: Gate valves usage
⩥ False - A globe valve has very little resistance to flow. Answer:
Globe valve resistance to flow
⩥ False - A valve marked only 200 *** may be used for steam
service. Answer: Valve marked 200 ***
⩥ Lug Type - There are three different types of butterfly valves.
Name one. Answer: Types of butterfly valves
