MASSACHUSETTS JOURNEYMAN PIPEFITTER 2025/2026
QUESTIONS WITH ANSWERS GRADED A+
✔✔Slip-on flange attachment weld type - ✔✔Must use J-groove or double fillet welds.
✔✔Steam and water connections - ✔✔Should not collect condensate in the lines.
✔✔Boiler blow-off fittings material - ✔✔Must be steel, minimum schedule 80 thickness.
✔✔Shut off valve type - ✔✔Must be OS & Y or lever-fitting valves.
✔✔OS & Y valve requirement - ✔✔Needed when steam outlet exceeds 2 inches NPS.
✔✔Bottom blowdown line connection - ✔✔Connected to the mud drum of the boiler.
✔✔Inappropriate steam outlet valve - ✔✔Non-return valve not suitable for steam outlet.
✔✔Bottom blowdown line size reduction - ✔✔Can be reduced under specific conditions.
✔✔Boiler pressure for blow-off fittings - ✔✔Must exceed 200 psi for schedule 80 fittings.
✔✔Water column steam connection - ✔✔Must be readily accessible for inspection.
✔✔Boiler gauge glass visibility - ✔✔Should be visible to the operator from the floor.
✔✔Blow-off tank - ✔✔Tank for discharging boiler water safely.
✔✔High pressure boiler - ✔✔Boiler operating above 100 psi.
✔✔Vertical fire tube boiler - ✔✔Boiler design with vertical tubes for heat transfer.
✔✔Heating surface - ✔✔Area in boiler where heat transfer occurs.
✔✔B31.5 - ✔✔Code for refrigerant piping systems.
✔✔Safety valve - ✔✔Device to release excess pressure from a boiler.
✔✔ASME code - ✔✔Standards for boiler and pressure vessel safety.
✔✔Safety relief valve - ✔✔Valve that opens to relieve pressure safely.
✔✔ANSI B16.5 - ✔✔Standard for pipe flanges and fittings.
, ✔✔ANSI B16.1 - ✔✔Standard for cast iron flanges.
✔✔Cross-sectional area - ✔✔Area of a pipe's internal diameter.
✔✔522 CMR 16 - ✔✔Massachusetts regulation for boiler controls.
✔✔Valve inlet - ✔✔Opening where fluid enters the valve.
✔✔Valve outlet - ✔✔Opening where fluid exits the valve.
✔✔Cast iron pipe - ✔✔Pipe material suitable for steam up to 300 psi.
✔✔Discharge pipe - ✔✔Pipe carrying steam or fluid from a valve.
✔✔Non ferrous pipe - ✔✔Pipe material not containing iron.
✔✔Schedule 40 pipe - ✔✔Standard thickness for piping applications.
✔✔Safety valve discharge - ✔✔Path for steam release from safety valve.
✔✔Reducing station - ✔✔Facility for reducing pressure in piping systems.
✔✔High-temperature water boilers - ✔✔Boilers operating at elevated water
temperatures.
✔✔ASME stamp - ✔✔Certification indicating compliance with ASME standards.
✔✔Unfired Pressure Vessel - ✔✔A vessel not designed for internal pressure.
✔✔Power Piping - ✔✔Piping systems for power generation applications.
✔✔AWS - ✔✔American Welding Society, sets welding standards.
✔✔ASME Code Section I - ✔✔Regulates safety valves for steam systems.
✔✔Muffler Outlet Area - ✔✔Must prevent back pressure on safety valves.
✔✔Steam Safety Valves - ✔✔Used for steam systems above 406 degrees F.
✔✔Expansion Tank Requirement - ✔✔Needed when boiler pressure exceeds 30 psig.
✔✔High Pressure Boiler Stamp - ✔✔M Stamp required for high pressure boilers.
QUESTIONS WITH ANSWERS GRADED A+
✔✔Slip-on flange attachment weld type - ✔✔Must use J-groove or double fillet welds.
✔✔Steam and water connections - ✔✔Should not collect condensate in the lines.
✔✔Boiler blow-off fittings material - ✔✔Must be steel, minimum schedule 80 thickness.
✔✔Shut off valve type - ✔✔Must be OS & Y or lever-fitting valves.
✔✔OS & Y valve requirement - ✔✔Needed when steam outlet exceeds 2 inches NPS.
✔✔Bottom blowdown line connection - ✔✔Connected to the mud drum of the boiler.
✔✔Inappropriate steam outlet valve - ✔✔Non-return valve not suitable for steam outlet.
✔✔Bottom blowdown line size reduction - ✔✔Can be reduced under specific conditions.
✔✔Boiler pressure for blow-off fittings - ✔✔Must exceed 200 psi for schedule 80 fittings.
✔✔Water column steam connection - ✔✔Must be readily accessible for inspection.
✔✔Boiler gauge glass visibility - ✔✔Should be visible to the operator from the floor.
✔✔Blow-off tank - ✔✔Tank for discharging boiler water safely.
✔✔High pressure boiler - ✔✔Boiler operating above 100 psi.
✔✔Vertical fire tube boiler - ✔✔Boiler design with vertical tubes for heat transfer.
✔✔Heating surface - ✔✔Area in boiler where heat transfer occurs.
✔✔B31.5 - ✔✔Code for refrigerant piping systems.
✔✔Safety valve - ✔✔Device to release excess pressure from a boiler.
✔✔ASME code - ✔✔Standards for boiler and pressure vessel safety.
✔✔Safety relief valve - ✔✔Valve that opens to relieve pressure safely.
✔✔ANSI B16.5 - ✔✔Standard for pipe flanges and fittings.
, ✔✔ANSI B16.1 - ✔✔Standard for cast iron flanges.
✔✔Cross-sectional area - ✔✔Area of a pipe's internal diameter.
✔✔522 CMR 16 - ✔✔Massachusetts regulation for boiler controls.
✔✔Valve inlet - ✔✔Opening where fluid enters the valve.
✔✔Valve outlet - ✔✔Opening where fluid exits the valve.
✔✔Cast iron pipe - ✔✔Pipe material suitable for steam up to 300 psi.
✔✔Discharge pipe - ✔✔Pipe carrying steam or fluid from a valve.
✔✔Non ferrous pipe - ✔✔Pipe material not containing iron.
✔✔Schedule 40 pipe - ✔✔Standard thickness for piping applications.
✔✔Safety valve discharge - ✔✔Path for steam release from safety valve.
✔✔Reducing station - ✔✔Facility for reducing pressure in piping systems.
✔✔High-temperature water boilers - ✔✔Boilers operating at elevated water
temperatures.
✔✔ASME stamp - ✔✔Certification indicating compliance with ASME standards.
✔✔Unfired Pressure Vessel - ✔✔A vessel not designed for internal pressure.
✔✔Power Piping - ✔✔Piping systems for power generation applications.
✔✔AWS - ✔✔American Welding Society, sets welding standards.
✔✔ASME Code Section I - ✔✔Regulates safety valves for steam systems.
✔✔Muffler Outlet Area - ✔✔Must prevent back pressure on safety valves.
✔✔Steam Safety Valves - ✔✔Used for steam systems above 406 degrees F.
✔✔Expansion Tank Requirement - ✔✔Needed when boiler pressure exceeds 30 psig.
✔✔High Pressure Boiler Stamp - ✔✔M Stamp required for high pressure boilers.
