MASSACHUSETTS JOURNEYMAN PIPEFITTER
LICENSE EXAM 2025 WITH COMPLETE 450+
QUESTIONS AND CORRECT VERIFIED
ANSWERS (100% CORRECT ANSWERS)/
JOURNEYMAN PIPEFITTER TEST MA (2025
NEW!!)
1. Two Low Water cut-offs are required on a steam heating boiler when -
ANSWER-The Boiler has pumped condensate returns
2. The ASME power piping code 31.1, limits the size of ANSI class 600
socket welded flanges for use in boiler external piping. What is the
maximum size limit? - ANSWER-3"
3. When welding high pressure piping that is within the boundaries known
as the boiler external piping, you must have what type of ASME stamp? -
ANSWER-Power Piping
4. If you wanted to know the installation requirements for control devices for
automatically fired boilers, you would read which one of the following
Massachusetts regulations? - ANSWER-522 CMR 16
5. High Pressure Pipe Welding and Welders must be qualified to which
section of the ASME code? - ANSWER-9
6. Which stamp is required for the assembly of high pressure boilers? -
ANSWER-A Stamp
7. The ASME Boiler and Pressure vessel code is law in Massachusetts.
When installing a high pressure boiler, you will refer to which ASME
code section? - ANSWER-1
8. A manometer used to measure gas shall be calibrated in ___________. -
ANSWER-Inches of water column
,9. Approved shall mean __________________. - ANSWER-Accepted by the
authority having jurisdiction
10.Gas equipment installed in a residential garage shall be installed not less
than ________ above the floor. - ANSWER-18 in.
11.When new branches are installed from the point of delivery to new
appliances ________. - ANSWER-Only the new branches shall be tested
12.Mechanical gauges used to measure test pressure shall have a range such
that the highest end of the scale is not greater than _______ times the test
pressure. - ANSWER-5
13.When a branch is left off for an unknown gas appliance the branch shall
be __________. - ANSWER-the same size as the main that supplies it
14.The unthreaded portion of a gas piping outlet shall extend not less than
________ in. through a finished ceiling or indoor or outdoor walls. -
ANSWER-1
15.Gas piping shall not be bent through an arc of not more than ________
degrees. - ANSWER-90
16.The inside radius of a bend for gas pipe shall not be less than ________
times the outside diameter of the pipe. - ANSWER-6
17.Copper tubing used for gas piping systems shall be ______________. -
ANSWER-Type "L" or "K"
,18.When non-ferrous pipe is brazed the brazing materials shall have a
melting point in excess of ________ deg. - ANSWER-1000
19.The minimum thickness for a striker plate used to protect tubing installed
vertically in a wall is _________ in. - ANSWER-.0508
20.Metal louvers shall have a _________ % free area. - ANSWER-75%
21.The test pressure to be used for a gas piping system shall not be less than
________ PSIG - ANSWER-3
22.Connections between plastic & metallic gas piping shall be made
__________. - ANSWER-Outside & Underground
23.Gas appliances of other than natural draft & other category 1 vented
appliances shall be provided with ____________ in accordance with the
appliance's manufacturer instructions. - ANSWER-Combustion,
ventilation, & dilution air
24.Motorized louvers shall be inter-locked with the equipment so that they
prove in ________ prior to main burner ignition. - ANSWER-Full Open
25.Previously installed gas piping materials _________________. -
ANSWER-May be used if adequate for the service intended
26.When combustion air is communicated from the outside through vertical
ducts each opening shall have a minimum free area of 1 sq. in. for every
__________ BTU. - ANSWER-4000
27.The location of the point of delivery shall be acceptable to the
__________. - ANSWER-Serving Gas Supplier
, 28.In occupancies served by unvented propane or natural gas fired space
room heaters a _______ shall be installed. - ANSWER-Listed CO
detectors
29.Gas systems with an operating pressure of 10 PSIG & less than 70 PSIG
shall be tested to __________. - ANSWER-100 PSI
30.A sleeve for CSST tubing shall be schedule _______ black or galvanized
pipe. - ANSWER-40
31.The minimum depth for CSST tubing is ________ in. underground. -
ANSWER-18
32.The maximum length for CSST tubing not supported by any methods
listed shall not exceed __________ in. when connected to a gas fired roof
top heater. - ANSWER-30
33.A permit from the _________ & ________ shall be obtained for the
installation of an unvented gas fired space room heater. - ANSWER-Fire
Dept. & Gas Inspector
34.On all CSST tubing installations a tag shall be affixed to the gas meter
__________. - ANSWER-Signed & dated by the licensed installer
35.The minimum size for CSST tubing below grade is not less than
_________ in. - ANSWER-3/4
36.When gas equipment is to be permanently removed ___________. -
ANSWER-A gas permit shall be obtained
LICENSE EXAM 2025 WITH COMPLETE 450+
QUESTIONS AND CORRECT VERIFIED
ANSWERS (100% CORRECT ANSWERS)/
JOURNEYMAN PIPEFITTER TEST MA (2025
NEW!!)
1. Two Low Water cut-offs are required on a steam heating boiler when -
ANSWER-The Boiler has pumped condensate returns
2. The ASME power piping code 31.1, limits the size of ANSI class 600
socket welded flanges for use in boiler external piping. What is the
maximum size limit? - ANSWER-3"
3. When welding high pressure piping that is within the boundaries known
as the boiler external piping, you must have what type of ASME stamp? -
ANSWER-Power Piping
4. If you wanted to know the installation requirements for control devices for
automatically fired boilers, you would read which one of the following
Massachusetts regulations? - ANSWER-522 CMR 16
5. High Pressure Pipe Welding and Welders must be qualified to which
section of the ASME code? - ANSWER-9
6. Which stamp is required for the assembly of high pressure boilers? -
ANSWER-A Stamp
7. The ASME Boiler and Pressure vessel code is law in Massachusetts.
When installing a high pressure boiler, you will refer to which ASME
code section? - ANSWER-1
8. A manometer used to measure gas shall be calibrated in ___________. -
ANSWER-Inches of water column
,9. Approved shall mean __________________. - ANSWER-Accepted by the
authority having jurisdiction
10.Gas equipment installed in a residential garage shall be installed not less
than ________ above the floor. - ANSWER-18 in.
11.When new branches are installed from the point of delivery to new
appliances ________. - ANSWER-Only the new branches shall be tested
12.Mechanical gauges used to measure test pressure shall have a range such
that the highest end of the scale is not greater than _______ times the test
pressure. - ANSWER-5
13.When a branch is left off for an unknown gas appliance the branch shall
be __________. - ANSWER-the same size as the main that supplies it
14.The unthreaded portion of a gas piping outlet shall extend not less than
________ in. through a finished ceiling or indoor or outdoor walls. -
ANSWER-1
15.Gas piping shall not be bent through an arc of not more than ________
degrees. - ANSWER-90
16.The inside radius of a bend for gas pipe shall not be less than ________
times the outside diameter of the pipe. - ANSWER-6
17.Copper tubing used for gas piping systems shall be ______________. -
ANSWER-Type "L" or "K"
,18.When non-ferrous pipe is brazed the brazing materials shall have a
melting point in excess of ________ deg. - ANSWER-1000
19.The minimum thickness for a striker plate used to protect tubing installed
vertically in a wall is _________ in. - ANSWER-.0508
20.Metal louvers shall have a _________ % free area. - ANSWER-75%
21.The test pressure to be used for a gas piping system shall not be less than
________ PSIG - ANSWER-3
22.Connections between plastic & metallic gas piping shall be made
__________. - ANSWER-Outside & Underground
23.Gas appliances of other than natural draft & other category 1 vented
appliances shall be provided with ____________ in accordance with the
appliance's manufacturer instructions. - ANSWER-Combustion,
ventilation, & dilution air
24.Motorized louvers shall be inter-locked with the equipment so that they
prove in ________ prior to main burner ignition. - ANSWER-Full Open
25.Previously installed gas piping materials _________________. -
ANSWER-May be used if adequate for the service intended
26.When combustion air is communicated from the outside through vertical
ducts each opening shall have a minimum free area of 1 sq. in. for every
__________ BTU. - ANSWER-4000
27.The location of the point of delivery shall be acceptable to the
__________. - ANSWER-Serving Gas Supplier
, 28.In occupancies served by unvented propane or natural gas fired space
room heaters a _______ shall be installed. - ANSWER-Listed CO
detectors
29.Gas systems with an operating pressure of 10 PSIG & less than 70 PSIG
shall be tested to __________. - ANSWER-100 PSI
30.A sleeve for CSST tubing shall be schedule _______ black or galvanized
pipe. - ANSWER-40
31.The minimum depth for CSST tubing is ________ in. underground. -
ANSWER-18
32.The maximum length for CSST tubing not supported by any methods
listed shall not exceed __________ in. when connected to a gas fired roof
top heater. - ANSWER-30
33.A permit from the _________ & ________ shall be obtained for the
installation of an unvented gas fired space room heater. - ANSWER-Fire
Dept. & Gas Inspector
34.On all CSST tubing installations a tag shall be affixed to the gas meter
__________. - ANSWER-Signed & dated by the licensed installer
35.The minimum size for CSST tubing below grade is not less than
_________ in. - ANSWER-3/4
36.When gas equipment is to be permanently removed ___________. -
ANSWER-A gas permit shall be obtained
