Nyc high pressure boiler license Exam
verified with complete answers
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
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 + specs of PRV
Who is responsible for maintaining the copies of the certified welder qualifications
report?- answer>>>The welding agency and shall be available to the DOB
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
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 inspectors 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
With what safety fitting shall you protect high pressure steam and water boilers with?-
answer>>>Dual low water cut outs
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
Internal high pressure inspection requires the boiler to be ____, ___, ___, and ___.-
answer>>>Shutdown, drained, removal of hand and man holes
The outlet of the blowoff tank is what size?- answer>>>2 times the diameter of the
blowdown piping, 6 inches internal entering the bottom of the blow off tank
What info is not necessary to send to DOB?- answer>>>Use, type, size, location,
operating temp of pressure tanks, and location, type, specs of Pressure Reducing Valve
Miniature boiler specs are ____ ID, ____ft gross volume, ____ft water heating surface,
____MAWP- answer>>>16 ID, 5 ft gross volume, 20 ft heating surface and 100 mawp
Safety valve popping tolerance + capacity up to 70 psig? 71-300 psig, 301-1000 psig,
>1000- answer>>>70 = 2 psig, 71-300 = 3%, 301-1000 = 10 psig, >1000 = 1%
What are other ways of testing safety or relief valve for rated capacity?-
answer>>>Accumulation test, amount of fuel burned, evaporative capacity of feed water
What if someone is found not following the rules and regulations for gas piping
inspections?- answer>>>Revocation of license
verified with complete answers
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
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 + specs of PRV
Who is responsible for maintaining the copies of the certified welder qualifications
report?- answer>>>The welding agency and shall be available to the DOB
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
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 inspectors 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
With what safety fitting shall you protect high pressure steam and water boilers with?-
answer>>>Dual low water cut outs
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
Internal high pressure inspection requires the boiler to be ____, ___, ___, and ___.-
answer>>>Shutdown, drained, removal of hand and man holes
The outlet of the blowoff tank is what size?- answer>>>2 times the diameter of the
blowdown piping, 6 inches internal entering the bottom of the blow off tank
What info is not necessary to send to DOB?- answer>>>Use, type, size, location,
operating temp of pressure tanks, and location, type, specs of Pressure Reducing Valve
Miniature boiler specs are ____ ID, ____ft gross volume, ____ft water heating surface,
____MAWP- answer>>>16 ID, 5 ft gross volume, 20 ft heating surface and 100 mawp
Safety valve popping tolerance + capacity up to 70 psig? 71-300 psig, 301-1000 psig,
>1000- answer>>>70 = 2 psig, 71-300 = 3%, 301-1000 = 10 psig, >1000 = 1%
What are other ways of testing safety or relief valve for rated capacity?-
answer>>>Accumulation test, amount of fuel burned, evaporative capacity of feed water
What if someone is found not following the rules and regulations for gas piping
inspections?- answer>>>Revocation of license
