Exam (elaborations)
Nyc high pressure boiler license Exam Questions with Correct Answers.
- Module
- Boiler License
- Institution
- Boiler License
Nyc high pressure boiler license Exam Questions with Correct Answers.
[Show more]
Content preview
Nyc high pressure boiler license ExamQuestions with Correct Answers
The minimum blowdown for a spring loaded safety valve shall be of what percent of set pressure? -
Correct Answer - 10%
How is the main steam pressure gages tested? - Correct Answer - With an inspectors gage
Who is in charge of the code for any plumbing installations? - Correct Answer - The nyc plumbing code
When will anchorage or guides be inspected? - Correct Answer - Annually
How many brass washout plugs does a miniature boiler have? - Correct Answer - 3 brass washout plugs,
1" in size
How often is HP piping expansion joints inspected? - Correct Answer - Weekly
How long should a hydronic system be pressure tested for? - Correct Answer - 2 hours at no less than
100 psig
How is a gage protected from excessive pressure? - Correct Answer - Shut off cock
Who is authorized to witness a test on a gas piping system? - Correct Answer - Plumbing inspector,
architect, licensed PE, master plumber, agency by the DOB
How should a remote disconnect be labeled? - Correct Answer - Remote control for burner
When is a fusible plug not needed to be installed on a boiler? - Correct Answer - Over 200 psig
When shall a power boiler with a MAWP over 400 be tested? - Correct Answer - Pressure tested
annually
What shall a design plan of a boiler and application contain but not limited to? - Correct 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? - Correct
Answer - The welding agency and shall be available to the DOB
,Who needs to furnish a control diagram and boiler operation instructions? - Correct Answer - The
installer
Who will certify and calibrate all gages utilized for testing? - Correct Answer - A testing operator
What shall be placed in between different joints and piping material? - Correct Answer - An approved
adapter fitting
What items are exempt from the reporting requirements? - Correct 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? - Correct Answer - An engineer
supervising a welding inspection agency acceptable to the DOB
At what pressure is it requires to have extra heavy valves installed? - Correct Answer - 100 psig
The ______ files an application for a boiler alteration? - Correct Answer - Inspector
How many safety valves does a boiler have with over 500 square feet of heating surface? - Correct
Answer - 2
Gas fired boilers not exceeding 100 square feet of heating surface shall be provided with a? - Correct
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? - Correct
Answer - Directly in the steam or water space within the boiler
Who is responsible for any spatial relationship between tanks and gas services? - Correct Answer - The
installer of the last installation to correct a violation
Who is responsible for the setting of operating and safety controls? - Correct Answer - The Installing
Company
With what safety fitting shall you protect high pressure steam and water boilers with? - Correct Answer
- Dual low water cut outs
Spring loaded safety valves have a total combined relieve capacity of? - Correct Answer - 100% of the
max designed capacity of the boiler
What is the total combined relieving capacity of power actuated relieving valves? - Correct 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? - Correct Answer - 2%
When a boiler is derated what changes? - Correct Answer - The MAWP decreases and the BTU output
In hydronic piping systems where shall a shutoff valve be installed? - Correct Answer - Before and after
the Pressure Reducing Valve
, Hydronic piping joints between steel tubing and fittings shall be? - Correct Answer - Mechanical or
Welded
What appears on the plate of a boiler? - Correct 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? - Correct Answer - To the
atmosphere
When a quick closing valve creates water hammer what is installed on the line? - Correct Answer - A
water hammer adapter is installed
Safety valve capacity may be checked in what 3 ways? - Correct Answer - Accumulation test,
evaporative capacity of feed water and amount of fuel burned
Records of inspects are kept where? - Correct 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. - Correct Answer - Ball or slip
joint
Internal high pressure inspection requires the boiler to be ____, ___, ___, and ___. - Correct Answer -
Shutdown, drained, removal of hand and man holes
The outlet of the blowoff tank is what size? - Correct 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? - Correct 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 -
Correct 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 - Correct
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? - Correct 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? - Correct
Answer - Revocation of license
What range of the gage shall not excess when using a magnitude of 5 psig? - Correct Answer - 10 psig
(2x operating pressure)
What can be connected to a float chamber or water column? - Correct Answer - A damper regulator, a
feed water regulator, drian, gauge
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller Wisdoms. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for £7.18. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
82871 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy revision notes and other study material for 14 years now