Nyc high pressure boiler license Final
Exam Questions Fully Solved 2025.
The minimum blowdown for a spring loaded safety valve shall be of what percent of set
pressure? - Answer 10%
How is the main steam pressure gages tested? - Answer With an inspector’s gage
Who is in charge of the code for any plumbing installations? - Answer The NYC plumbing code
When will anchorage or guides be inspected? - Answer Annually
How many brass washout plugs does a miniature boiler have? - Answer 3 brass washout plugs,
1" in size
How often is HP piping expansion joints inspected? - Answer Weekly
How long should a hydronic system be pressure tested for? - Answer 2 hours at no less than
100 psig
How is a gage protected from excessive pressure? - Answer Shut off cock
Who is authorized to witness a test on a gas piping system? - Answer Plumbing inspector,
architect, licensed PE, master plumber, agency by the DOB
How should a remote disconnect be labeled? - Answer Remote control for burner
When is a fusible plug not needed to be installed on a boiler? - Answer Over 200 psig
When shall a power boiler with a MAWP over 400 be tested? - Answer Pressure tested
annually
,Who needs to furnish a control diagram and boiler operation instructions? - Answer The
installer
Who will certify and calibrate all gages utilized for testing? - Answer A testing operator
What shall be placed in between different joints and piping material? - Answer An approved
adapter fitting
What items are exempt from the reporting requirements? - Answer The seal welds of the
tubes and the installation of back rings to man holes and hand holes to boilers
Who will be under control for any welding done to a high pressure tank? - Answer An engineer
supervising a welding inspection agency acceptable to the DOB
At what pressure is it requires to have extra heavy valves installed? - Answer 100 psig
The ______ files an application for a boiler alteration? - Answer Inspector
How many safety valves does a boiler have with over 500 square feet of heating surface? -
Answer 2
Gas fired boilers not exceeding 100 square feet of heating surface shall be provided with a? -
Answer Single or double cone type of hood diverter in the stack
A heater for either liquid fuels or other liquids harmful to the boiler shall not be installed? -
Answer Directly in the steam or water space within the boiler
Who is responsible for any spatial relationship between tanks and gas services? - Answer The
installer of the last installation to correct a violation
Who is responsible for the setting of operating and safety controls? - Answer The Installing
Company
, Spring loaded safety valves have a total combined relieve capacity of? - Answer 100% of the
max designed capacity of the boiler
What is the total combined relieving capacity of power actuated relieving valves? - Answer No
less the 10% of the MAWP or no higher then 20% above the MAWP
What is the minimum blowdown for a spring loaded safety valve? - Answer 2%
When a boiler is derated what changes? - Answer The MAWP decreases and the BTU output
In hydronic piping systems where shall a shutoff valve be installed? - Answer Before and after
the Pressure Reducing Valve
Hydronic piping joints between steel tubing and fittings shall be? - Answer Mechanical or
Welded
What appears on the plate of a boiler? - Answer Serial #, name of manufacturer, serial # of
manufacturer, MAWP, heating surface, year built and rated steam capacity
Waste removal of a boiler shall conduct the products of combustion where? - Answer To the
atmosphere
When a quick closing valve creates water hammer what is installed on the line? - Answer A
water hammer adapter is installed
Safety valve capacity may be checked in what 3 ways? - Answer Accumulation test,
evaporative capacity of feed water and amount of fuel burned
Records of inspects are kept where? - Answer On the premises
No joint anchorages or guides shall be repaired, replaced or relocated without a work permit
issued by the department. This shall not apply to the repacking of a ___ or ___ joint. - Answer
Ball or slip joint
Exam Questions Fully Solved 2025.
The minimum blowdown for a spring loaded safety valve shall be of what percent of set
pressure? - Answer 10%
How is the main steam pressure gages tested? - Answer With an inspector’s gage
Who is in charge of the code for any plumbing installations? - Answer The NYC plumbing code
When will anchorage or guides be inspected? - Answer Annually
How many brass washout plugs does a miniature boiler have? - Answer 3 brass washout plugs,
1" in size
How often is HP piping expansion joints inspected? - Answer Weekly
How long should a hydronic system be pressure tested for? - Answer 2 hours at no less than
100 psig
How is a gage protected from excessive pressure? - Answer Shut off cock
Who is authorized to witness a test on a gas piping system? - Answer Plumbing inspector,
architect, licensed PE, master plumber, agency by the DOB
How should a remote disconnect be labeled? - Answer Remote control for burner
When is a fusible plug not needed to be installed on a boiler? - Answer Over 200 psig
When shall a power boiler with a MAWP over 400 be tested? - Answer Pressure tested
annually
,Who needs to furnish a control diagram and boiler operation instructions? - Answer The
installer
Who will certify and calibrate all gages utilized for testing? - Answer A testing operator
What shall be placed in between different joints and piping material? - Answer An approved
adapter fitting
What items are exempt from the reporting requirements? - Answer The seal welds of the
tubes and the installation of back rings to man holes and hand holes to boilers
Who will be under control for any welding done to a high pressure tank? - Answer An engineer
supervising a welding inspection agency acceptable to the DOB
At what pressure is it requires to have extra heavy valves installed? - Answer 100 psig
The ______ files an application for a boiler alteration? - Answer Inspector
How many safety valves does a boiler have with over 500 square feet of heating surface? -
Answer 2
Gas fired boilers not exceeding 100 square feet of heating surface shall be provided with a? -
Answer Single or double cone type of hood diverter in the stack
A heater for either liquid fuels or other liquids harmful to the boiler shall not be installed? -
Answer Directly in the steam or water space within the boiler
Who is responsible for any spatial relationship between tanks and gas services? - Answer The
installer of the last installation to correct a violation
Who is responsible for the setting of operating and safety controls? - Answer The Installing
Company
, Spring loaded safety valves have a total combined relieve capacity of? - Answer 100% of the
max designed capacity of the boiler
What is the total combined relieving capacity of power actuated relieving valves? - Answer No
less the 10% of the MAWP or no higher then 20% above the MAWP
What is the minimum blowdown for a spring loaded safety valve? - Answer 2%
When a boiler is derated what changes? - Answer The MAWP decreases and the BTU output
In hydronic piping systems where shall a shutoff valve be installed? - Answer Before and after
the Pressure Reducing Valve
Hydronic piping joints between steel tubing and fittings shall be? - Answer Mechanical or
Welded
What appears on the plate of a boiler? - Answer Serial #, name of manufacturer, serial # of
manufacturer, MAWP, heating surface, year built and rated steam capacity
Waste removal of a boiler shall conduct the products of combustion where? - Answer To the
atmosphere
When a quick closing valve creates water hammer what is installed on the line? - Answer A
water hammer adapter is installed
Safety valve capacity may be checked in what 3 ways? - Answer Accumulation test,
evaporative capacity of feed water and amount of fuel burned
Records of inspects are kept where? - Answer On the premises
No joint anchorages or guides shall be repaired, replaced or relocated without a work permit
issued by the department. This shall not apply to the repacking of a ___ or ___ joint. - Answer
Ball or slip joint
