Massachusetts Journeyman Pipefitter License Exam
2025 — 300 Original Practice Questions
1. In Massachusetts, a pipefitter license is required to work on heating systems
with a BTU heat input greater than what value?
A. 250,000 BTU
B. 500,000 BTU
C. 700,000 BTU
D. 1,000,000 BTU
C. 700,000 BTU
Massachusetts law requires a pipefitter license for heating systems exceeding 700,000 BTU
input. This threshold determines when licensed pipefitting is legally required rather than
work that may be performed under other trade licenses.
2. How many hours of work experience as a licensed apprentice under a
Massachusetts Master Pipefitter are required to apply for the Journeyman
Pipefitter examination?
A. 2,000 hours
B. 4,000 hours
C. 6,000 hours
D. 8,000 hours
C. 6,000 hours
528 CMR 11.00 requires 6,000 clock hours of pipefitting work experience as a duly licensed
OPSI Pipefitter Apprentice under a Massachusetts Master Pipefitter .
,3. How many hours of approved classroom instruction are required for a
Journeyman Pipefitter applicant?
A. 350 hours
B. 400 hours
C. 450 hours
D. 500 hours
C. 450 hours
The current requirement is 450 hours of study in a pipefitter's course approved by the
Bureau, completed alongside the 6,000 hours of work experience .
4. What is the passing score for the Massachusetts Journeyman Pipefitter
examination?
A. 65%
B. 70%
C. 75%
D. 80%
B. 70%
Candidates must correctly answer 70% or more of the questions on the written
examination to qualify for a license .
5. What is the non-refundable application fee for the Journeyman Pipefitter
license?
,A. $50
B. $75
C. $100
D. $150
B. $75
The non-refundable application processing fee for the Journeyman Pipefitter license is $75
.
6. What is the maximum length for an unshielded flexible gas appliance
connector?
A. 3 feet
B. 4 feet
C. 6 feet
D. 8 feet
C. 6 feet
The maximum length for an unshielded flexible gas connector is 6 feet. Longer lengths
require an approved flexible gas piping system with proper bonding .
7. What is the minimum size of a residential gas service line (natural gas) from the
street to the building in Massachusetts?
A. 1/2 inch
B. 3/4 inch
C. 1 inch
, D. 1-1/4 inch
B. 3/4 inch
Massachusetts Code 248 CMR 4.00 requires 3/4-inch minimum for single-family
residential gas service to ensure adequate volume for typical appliances including furnace,
water heater, and range .
8. What is the minimum test pressure for a gas piping system?
A. 1.5 PSIG
B. 3 PSIG
C. 5 PSIG
D. 10 PSIG
B. 3 PSIG
The test pressure for a gas piping system shall not be less than 3 PSIG. For low-pressure
systems, testing at 10 inches water column for 10 minutes may be acceptable .
9. What type of copper tubing is approved for gas piping systems?
A. Type M
B. Type L or K
C. Type DWV
D. Any copper tubing
B. Type L or K
Copper tubing used for gas piping systems shall be Type "L" or "K," which have thicker
walls suitable for gas service .
2025 — 300 Original Practice Questions
1. In Massachusetts, a pipefitter license is required to work on heating systems
with a BTU heat input greater than what value?
A. 250,000 BTU
B. 500,000 BTU
C. 700,000 BTU
D. 1,000,000 BTU
C. 700,000 BTU
Massachusetts law requires a pipefitter license for heating systems exceeding 700,000 BTU
input. This threshold determines when licensed pipefitting is legally required rather than
work that may be performed under other trade licenses.
2. How many hours of work experience as a licensed apprentice under a
Massachusetts Master Pipefitter are required to apply for the Journeyman
Pipefitter examination?
A. 2,000 hours
B. 4,000 hours
C. 6,000 hours
D. 8,000 hours
C. 6,000 hours
528 CMR 11.00 requires 6,000 clock hours of pipefitting work experience as a duly licensed
OPSI Pipefitter Apprentice under a Massachusetts Master Pipefitter .
,3. How many hours of approved classroom instruction are required for a
Journeyman Pipefitter applicant?
A. 350 hours
B. 400 hours
C. 450 hours
D. 500 hours
C. 450 hours
The current requirement is 450 hours of study in a pipefitter's course approved by the
Bureau, completed alongside the 6,000 hours of work experience .
4. What is the passing score for the Massachusetts Journeyman Pipefitter
examination?
A. 65%
B. 70%
C. 75%
D. 80%
B. 70%
Candidates must correctly answer 70% or more of the questions on the written
examination to qualify for a license .
5. What is the non-refundable application fee for the Journeyman Pipefitter
license?
,A. $50
B. $75
C. $100
D. $150
B. $75
The non-refundable application processing fee for the Journeyman Pipefitter license is $75
.
6. What is the maximum length for an unshielded flexible gas appliance
connector?
A. 3 feet
B. 4 feet
C. 6 feet
D. 8 feet
C. 6 feet
The maximum length for an unshielded flexible gas connector is 6 feet. Longer lengths
require an approved flexible gas piping system with proper bonding .
7. What is the minimum size of a residential gas service line (natural gas) from the
street to the building in Massachusetts?
A. 1/2 inch
B. 3/4 inch
C. 1 inch
, D. 1-1/4 inch
B. 3/4 inch
Massachusetts Code 248 CMR 4.00 requires 3/4-inch minimum for single-family
residential gas service to ensure adequate volume for typical appliances including furnace,
water heater, and range .
8. What is the minimum test pressure for a gas piping system?
A. 1.5 PSIG
B. 3 PSIG
C. 5 PSIG
D. 10 PSIG
B. 3 PSIG
The test pressure for a gas piping system shall not be less than 3 PSIG. For low-pressure
systems, testing at 10 inches water column for 10 minutes may be acceptable .
9. What type of copper tubing is approved for gas piping systems?
A. Type M
B. Type L or K
C. Type DWV
D. Any copper tubing
B. Type L or K
Copper tubing used for gas piping systems shall be Type "L" or "K," which have thicker
walls suitable for gas service .
