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HIGH PRESSURE STEAM EXAM
NYC 2026/2027 ACTUAL
QUESTIONS WITH VERIFIED
ANSWERS.
1 The maximum blow down for a safety valve on a forced flow
steam generator or high temperature water boiler shall be of
what percent of the set pressure? - ANSWER-10%. HP Code:
14-9.12
2 Who is responsible for the setting of operating and safety
controls? - ANSWER-The Installing Company NYC Mech:
1004.7
3 Who oversees the code for any plumbing installations? -
ANSWER-The NYC Plumbing Code NYC Mech: 1002.1
4 When will anchorage or guides be inspected? - ANSWER-
Annually. NYC Mech: 1210.3.1.2
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5 How many brass washout plugs does a miniature boiler
have? - ANSWER-Not less than 3 Brass Washout Plugs 1
inches in size. HP Code 14-11.5
6 How often are high pressure piping expansion joints
inspected? - ANSWER-Weekly RCNY: 20-02 a.2.i (HP steam
piping). NYC Mech: 1210.3.1 (hydronics - monthly)
7 How long should a Hydronic System be pressure tested for? -
ANSWER-2 hours at no less than 100 PSIG. NYC Mech:
1208.1
8 How is a gauge protected from excessive pressure? -
ANSWER-Shut off Cock RCNY: 20-03 c,7
9 Who is authorized in witnessing a test on a gas piping
system? - ANSWER-Plumbing Inspector, Architect, Licensed
PE, Master Plumber, or Agency by the D.O.B RCNY 20-01
a,1,2
10 How should a remote disconnect be labeled? - ANSWER-
Remote control for burner. NYC Mech: 1006.8.1
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11 When is a fusible plug not needed to be installed on a
boiler? - ANSWER-Over 200 PSIG. HP Code: 14-10.17, b
12 When shall a power boiler with a MAWP over 400 be
tested? - ANSWER-Pressure tested annually ( safety valve).
HP Code: 14-9.7, a,2
13 What shall a Design plan of a boiler and application contain
but not limited to? - ANSWER-Size + Location, Operating
Pressure + Temperature of the Pressure vessel, and Type +
Specification of Pressure Relief.
14 Who is responsible for maintaining the copies of the certified
welder qualifications report? - ANSWER-Copies of the certified
welder qualification report she'll be maintained by the
responsible WELDING AGENCY and the company performing
the welding, and shall be made available upon request to the
DOB. RCNY: 20-02, b,2v,/22-01,d,5. HP Code: 14-3.7
15 Who needs to furnish a control diagram and boiler operation
instructions? - ANSWER-The Installer. NYC Mech: 1004.7
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16 Who will certify and calibrate all gauges utilized for testing? -
ANSWER-All gauges utilized for testing shall be calibrated and
certified annually in accordance with ASME B40.100 by the test
operathor. NYC Mech: 1011.2
17 What shall be placed in between different joints and piping
material? - ANSWER-An approved Adapter Fitting NYC Mech:
1203.1.2
18 What items are exempt from the reporting requirements? -
ANSWER-Exemptions: (1) the installation of backing rings in
handhole or manhole openings or the building up of same; and
(2) the seal welding of tubes to the tube sheet. HP Code: 14-
3.4, b, 1-2
19. Who will be under control for any welding done to a High-
pressure tank? - ANSWER-The welding shall be under
controlled inspection of an ENGINEER, supervising a welding
inspection agency acceptable to the DOB RCNY: 22-01 d,2
HIGH PRESSURE STEAM EXAM
NYC 2026/2027 ACTUAL
QUESTIONS WITH VERIFIED
ANSWERS.
1 The maximum blow down for a safety valve on a forced flow
steam generator or high temperature water boiler shall be of
what percent of the set pressure? - ANSWER-10%. HP Code:
14-9.12
2 Who is responsible for the setting of operating and safety
controls? - ANSWER-The Installing Company NYC Mech:
1004.7
3 Who oversees the code for any plumbing installations? -
ANSWER-The NYC Plumbing Code NYC Mech: 1002.1
4 When will anchorage or guides be inspected? - ANSWER-
Annually. NYC Mech: 1210.3.1.2
,2 | Page
5 How many brass washout plugs does a miniature boiler
have? - ANSWER-Not less than 3 Brass Washout Plugs 1
inches in size. HP Code 14-11.5
6 How often are high pressure piping expansion joints
inspected? - ANSWER-Weekly RCNY: 20-02 a.2.i (HP steam
piping). NYC Mech: 1210.3.1 (hydronics - monthly)
7 How long should a Hydronic System be pressure tested for? -
ANSWER-2 hours at no less than 100 PSIG. NYC Mech:
1208.1
8 How is a gauge protected from excessive pressure? -
ANSWER-Shut off Cock RCNY: 20-03 c,7
9 Who is authorized in witnessing a test on a gas piping
system? - ANSWER-Plumbing Inspector, Architect, Licensed
PE, Master Plumber, or Agency by the D.O.B RCNY 20-01
a,1,2
10 How should a remote disconnect be labeled? - ANSWER-
Remote control for burner. NYC Mech: 1006.8.1
,3 | Page
11 When is a fusible plug not needed to be installed on a
boiler? - ANSWER-Over 200 PSIG. HP Code: 14-10.17, b
12 When shall a power boiler with a MAWP over 400 be
tested? - ANSWER-Pressure tested annually ( safety valve).
HP Code: 14-9.7, a,2
13 What shall a Design plan of a boiler and application contain
but not limited to? - ANSWER-Size + Location, Operating
Pressure + Temperature of the Pressure vessel, and Type +
Specification of Pressure Relief.
14 Who is responsible for maintaining the copies of the certified
welder qualifications report? - ANSWER-Copies of the certified
welder qualification report she'll be maintained by the
responsible WELDING AGENCY and the company performing
the welding, and shall be made available upon request to the
DOB. RCNY: 20-02, b,2v,/22-01,d,5. HP Code: 14-3.7
15 Who needs to furnish a control diagram and boiler operation
instructions? - ANSWER-The Installer. NYC Mech: 1004.7
, 4 | Page
16 Who will certify and calibrate all gauges utilized for testing? -
ANSWER-All gauges utilized for testing shall be calibrated and
certified annually in accordance with ASME B40.100 by the test
operathor. NYC Mech: 1011.2
17 What shall be placed in between different joints and piping
material? - ANSWER-An approved Adapter Fitting NYC Mech:
1203.1.2
18 What items are exempt from the reporting requirements? -
ANSWER-Exemptions: (1) the installation of backing rings in
handhole or manhole openings or the building up of same; and
(2) the seal welding of tubes to the tube sheet. HP Code: 14-
3.4, b, 1-2
19. Who will be under control for any welding done to a High-
pressure tank? - ANSWER-The welding shall be under
controlled inspection of an ENGINEER, supervising a welding
inspection agency acceptable to the DOB RCNY: 22-01 d,2
