Nyc high pressure boiler license Exam Questions with Correct Verified Answers, Exams of Nursing

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Nyc high pressure boiler license Exam Questions with Correct Verified 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 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 On a steam gage what keeps the tube filled with water? -- correct answer --A siphon The minimum working clearance around boilers is ____ ? ___vertical? -- correct answer --NYC code says 18", HP code says 24", 7ft vertical Boilers shall have all controls set, adjusted and tested by -- correct answer -- The installer Mufflers prevent what? -- correct answer --Back pressure External piping of a desuperheater in relation to a boiler has a ____ valve -- correct answer --Stop valve (external) When shall a boiler with a MAWP up to 400 psi be tested? -- correct answer --Once a year What is the minimum safety or relief valve capacity for electric boilers? -- correct answer --3-1/2 lb/hour/kW After welded repairs or alterations of the equipment, what shall retain a copy of the report? -- correct answer --The owner Any boiler changing location within the state may be reinstalled; an application for permission to install a second boiler is filled with whom? -- correct answer --Commissioner When it is necessary to go on top of boilers for maintenance how much clearance is needed? -- correct answer --7 feet Wet bottom boilers shall be set above the floor not less then? -- correct answer --12" How do you set the pressure of the safety and relief valves? Find the ___ -- correct answer --Name plate of the safety valve If there is one safety valve on an electric boiler what is the max output? -- correct answer --Less than 1100 kW What pressure shall a system using utility street steam have? -- correct answer --200 psig at 413*F which is than reduced by a PRV What chemical should be used for oxygen scavenging? -- correct answer -- Sodium Sulfite or Sodium Hydroxide What is the minimum distance from wall to the boiler? -- correct answer -- 18" NyC construction code, 25" high pressure code What is the lowest part of a water gage? -- correct answer --2" above the lowest permissible water level What standard are used on gages? -- correct answer --ASME and ANSI What is the only thing that could tap onto a low water cut out? -- correct answer --A drain How many expansion tanks are need for 6 boilers? -- correct answer --1 Who shall design the boiler system? -- correct answer --The Professional Engineer or the Architect Gage to be measured in the magnitude of 5 psig shall not be calibrated in no less than? -- correct answer --1/5" increments At what percent do you hydrostatically test a boiler? -- correct answer -- 150% Beside a log book being inspected by a state boiler inspector who else can look at the book? -- correct answer --the insurance company What is the difference between low pressure and high pressure safety relief valves? -- correct answer --Low pressure relieves to drain, high pressure to vent What is the minimum dial arc on a 2-1/4" gage -- correct answer --270* Where is the steam gage installed on a mini boiler? -- correct answer --On the steam space side What is an effective stop for a gauge? -- correct answer --The indicating point at zero How long is the pre-purge on a low pressure boiler? -- correct answer --90 seconds What does the Stamp (S) mean and the stamp (h) mean? -- correct answer -- S means power boiler, h means low pressure boiler Each superheater shall be equipped with how many drains? -- correct answer --At least 1 How often does an insurance inspector inspect the boilers? -- correct answer --Annually What is the work that is done to a boiler that doesnt have to be reported and is exempt? -- correct answer --Replacement of the backings to the man holes and hand holes and seals welds to tubes How do you prepare a brazed joint -- correct answer --Clean, flux, heat, filler metal How do you prepare a weld? -- correct answer --Clean, convex, weld a filler metal, wire wheel Mufflers are not to be installed on? -- correct answer --High pressure boilers What would happen if your strainers from your discharge and supply lines are clogged? -- correct answer --Deep vacuum How many safety valves are on a miniature boiler? -- correct answer --1 since only 20 sq ft When connecting two different types of metallic pipe what is used in between? -- correct answer --A dielectric kit or fitting Where do you install gas service or distribution line from a new high pressure tank? -- correct answer --In a separate room How many square feet of heating surface does a fusible plug require? -- correct answer --50 sq ft What chemical should be used for oxygen scavenging? -- correct answer -- Sodium Sulfite or Sodium Hydroxide What is the minimum distance from wall to the boiler? -- correct answer -- 18" NyC construction code, 25" high pressure code What is the lowest part of a water gage? -- correct answer --2" above the lowest permissible water level What standard are used on gages? -- correct answer --ASME and ANSI What is the only thing that could tap onto a low water cut out? -- correct answer --A drain How many expansion tanks are need for 6 boilers? -- correct answer --1 Who shall design the boiler system? -- correct answer --The Professional Engineer or the Architect Gage to be measured in the magnitude of 5 psig shall not be calibrated in no less than? -- correct answer --1/5" increments At what percent do you hydrostatically test a boiler? -- correct answer -- 150% Beside a log book being inspected by a state boiler inspector who else can look at the book? -- correct answer --the insurance company What is the difference between low pressure and high pressure safety relief valves? -- correct answer --Low pressure relieves to drain, high pressure to vent What is the minimum dial arc on a 2-1/4" gage -- correct answer --270* Where is the steam gage installed on a mini boiler? -- correct answer --On the steam space side What is an effective stop for a gauge? -- correct answer --The indicating point at zero How long is the pre-purge on a low pressure boiler? -- correct answer --90 seconds What does the Stamp (S) mean and the stamp (h) mean? -- correct answer -- S means power boiler, h means low pressure boiler Each superheater shall be equipped with how many drains? -- correct answer --At least 1 How often does an insurance inspector inspect the boilers? -- correct answer --Annually What is the work that is done to a boiler that doesnt have to be reported and is exempt? -- correct answer --Replacement of the backings to the man holes and hand holes and seals welds to tubes How do you prepare a brazed joint -- correct answer --Clean, flux, heat, filler metal How do you prepare a weld? -- correct answer --Clean, convex, weld a filler metal, wire wheel Mufflers are not to be installed on? -- correct answer --High pressure boilers What would happen if your strainers from your discharge and supply lines are clogged? -- correct answer --Deep vacuum How many safety valves are on a miniature boiler? -- correct answer --1 since only 20 sq ft When connecting two different types of metallic pipe what is used in between? -- correct answer --A dielectric kit or fitting Where do you install gas service or distribution line from a new high pressure tank? -- correct answer --In a separate room How many square feet of heating surface does a fusible plug require? -- correct answer --50 sq ft Where does a low pressure safety and relief valve discharge to? -- correct answer --The drain Electric boilers have two or more safety valves at a power output of _____ kW? -- correct answer --1100 kW If an electric boiler is operating at a max of 1100 kW how many safety valves are required? -- correct answer --2 When is a bullseye water sight glass acceptable on a miniature boiler? -- correct answer --When there is insufficient space for a gage glass After an inspectors notice is given to the owner where is it posted? -- correct answer --On or close to the boiler What type of welding shall the pipes of 2" or more have? -- correct answer -- Butt weld Gage measured in the magnitude of 3 psig calibrated in increments of? -- correct answer --1/10" What are the minimum and the maximum temp when performing a hydrostatic test? -- correct answer --Above ambient temp CODE: 70-120*F Where does a low pressure safety and relief valve discharge to? -- correct answer --A drain How do you prepare a soldered joint? -- correct answer --Clean, flux, heat, solder How often do you bottom blow off? -- correct answer --Daily Who authorizes changes to high pressure piping anchors, guides and expansion joints without effect to health and safety? -- correct answer --The professional engineer What installing an expansion tank what factor is taken in to consideration? - - correct answer --The MAWP of the boiler system If you are reading 12% Co2 what does it pertain to? -- correct answer -- Incomplete combustion When should you inspect expansion joints? -- correct answer --Weekly How far does a pressure tank need to be away from any gas services? -- correct answer --5 feet horizontal Where is the remote disconnect located? What is it labeled? -- correct answer --At the egress, remote control for burner reduced in pressure? -- correct answer --on the low pressure side of the system what size is the overflow on an open type of expansion tank? -- correct answer --1" what size is the inspectors test gage connection? -- correct answer --1/4" where is the test gage connected to? -- correct answer --shall be connected to the boiler brazed joints use a filler metal that conforms to AWS A_._? -- correct answer --AWS A5.8 pipe insulation shall have a maximum flame spread of? -- correct answer -- 25 flame spread index where does the gaseous waste of a boiler combustion go? -- correct answer -- should be equipped with means for conducting products of combustion outside to the atmosphere you blow down the boiler every? -- correct answer --daily the boiler shall be equipped with automatic devices responsive to variations in? -- correct answer --steam pressure what are all the specs of a non mercury gage of magnitude of 3 psig? -- correct answer --has a min of a 2-1/4" gage, dial arc 270*, minimum increments of 1/10 psig, shutoff cock, indicating point at zero and has a calibration screw. what are all the specs of a non mercury gage of magnitude of 5 psig? -- correct answer --has a min of a 2-1/4" gage, dial arc 270*, minimum increments of 1/5 psig, shutoff cock, indicating point at zero and has a calibration screw. a boiler operates at 100 psig, how many fusible plugs are there? -- correct answer --1 fusible plug (over 50 sq ft) a boiler operating at 100 psi mawp, how are pipes joined together? -- correct answer --flanged or welded if you were getting 16-90 psig from an outside source, what shall the system be designed for? -- correct answer --125 psig where is the shutoff valves located on a PRV? -- correct answer --before and after the pressure reducing valve natural gas has how many BTU's? -- correct answer --960 BTU's what kind of scrubber does an incinerator have? -- correct answer --wet scrubber (slurry) ________ is the term used with a wet absorber nozzle in relation to an incinerator? -- correct answer --slurry what is the first step of a hydrostatic test? -- correct answer --fill the boiler with water till you see it up out of the boiler vent the size of each connection to a water column? Boiler-> WC, GG, cocks, test gage, drain -- correct answer --1" WC, 1/2" GG., 1/2" test gage, 3/4" drain how often do you test for water treatment of boiler feed water? -- correct answer --daily how do you decrease back pressure on a condensing engine? -- correct answer --have the exhaust (steam) flow right into the (surface) condenser where is the absorber pump located in between? -- correct answer --Outlet Damper and the Stack what is the minimum size for a safety valve? -- correct answer --3/4" what is the capacity of a relief valve for a low pressure boiler under 30psig? over 30psig? -- correct answer --under 30 psig has a relieve capacity of 20% above and over 30% is 10% above in a low pressure boiler the safety valve shall not rise __ psi above the MAWP -- correct answer --5 psi above the mawp a combustion regulator prevents water from rising above ___*F or a steam pressure of ___ in relation to LPB. -- correct answer --250*F or a steam pressure of 15 psig the minimum size of a bottom blow off valve is? -- correct answer --3/4" relief valves on LPB are rated up to ___*F. -- correct answer --275*F what are the 3 different types of stress? -- correct answer --compression, shear, tensile a low pressure boiler needs inspection if it occupies more than ___ families? -- correct answer --6 one sq ft of fresh air for every ____ btu's of fuel burned, in relation to LPB gas fired burners -- correct answer --2,000,000 btu's hydrostatic inspection must have ___ days notice. -- correct answer --15 days the certificate of inspection is placed? -- correct answer --as close to the boiler as possible a LP hot water boiler is considered low pressure below? -- correct answer -- 160 psig @ 250*F what size are brass wash out plugs on a mini boiler? -- correct answer --1" when you roll and expand tubes how far should they extend? -- correct answer --evenly 1/4", 1/2", 3/4" what item is not exempt from reporting requirements of welds? -- correct answer --cracks on the boiler shell what is the valve order on a desuperheater? Boiler Proper>___>___>___ -- correct answer --Stop valve, pressure regulating valve, block valve who cannot oversee a gas piping inspection? -- correct answer --insurance company hydronic system runs at 150 psi, hydrostatic test at 225 psi, rated to run at 115 psi what pressure should it not exceed? -- correct answer --150 psig how would you prevent damage to piping due to temp changes? -- correct answer --expansion bends how do you protect potable feed water for a boiler? -- correct answer -- pressure vacuum breaker brass pipes cannot be joined by -- correct answer --solder a miniature boiler has up to __ sq ft of heating surface. -- correct answer -- 20 sq ft of heating surface a miniature boiler has up to __ cubic feet of gross volume. -- correct answer --5 cubic feet of gross volume a miniature boiler has up to __" of ID of shell? -- correct answer --16" inner diameter any mouth protector on a boiler shall be locked or sealed ____, what type? -- correct answer --locked or sealed open, of the straight way type when are fusible plugs replaced? -- correct answer --annually when a discharge pipe is used on a safety valve it shall be ____(size) of the safety valve, and fitted with an _____ drain? -- correct answer --no less than the same size, fitted with an open drain three different ways to check the safety valve capacity? -- correct answer -- accumulation test, maximum amount of fuel burned, maximum evaporative capacity of feed water if a boiler has a lap seal crack it shall be? -- correct answer --discontinued what is stamped on a boiler? -- correct answer --serial #, name of manufacturer, serial # of manufacturer, MAWP, heating surface, year built, and rated steam capacity what is stamped on a boiler identification plate? -- correct answer --name, ID#, class, tensile strength (according to high pressure code) safety valves are ____ or held by a ____ during a hydrostatic test? -- correct answer --removed or approved clamp if a boiler is gravity fed, there shall be what valves on the line? -- correct answer --a stop valve as close as the boiler as possible followed by a check valve what must you not adjust on the safety valve during a hydrostatic test? -- correct answer --the compression screw what is the max psig of a water column constructed of cast iron? malleable iron? -- correct answer --cast iron = 250, malleable = 350 what is the minimum size of the blow off piping? -- correct answer --3/4" when shall a water column have a shield of a sleeve? -- correct answer -- over 400 psig what is the minimum size of a feed water piping connection to a boiler with less than 100 sq ft of heating surface? more than 100 sq ft of heating surface? -- correct answer --the minimum less than 100 sq ft is 1/2", and more than 100 sq ft is 3/4" when shall a boiler have a least two means of feed water? -- correct answer - -when the boiler is over 500 sq ft of heating surface how many drains are on a super heater and is the minimum size is inches? - - correct answer --1 drain measuring a minimum 1" boilers have 2 bottom blow downs when the MAWP exceeds _____ psi. -- correct answer --100 psi what schedule pipe can you use on a boiler blow down lines? -- correct answer --schedule 80 what is the maximum size of a blow down valve? minimum size and less than how many sq feet? -- correct answer --2-1/2", 3/4", less than 100 sq ft all boiler fittings are what standard? -- correct answer --ASME how many gage cocks are on a boiler with less than 36" and 100 sq ft of surface? -- correct answer --2 how many gage cocks are on a boiler with over 36" and more than 100 sq feet of surface? -- correct answer --3 what size are the gage cocks on a boiler? -- correct answer --1/2" how many gage cocks does a boiler have with two water glasses on the same horizontal line? -- correct answer --2 cocks @ 1/2" any valve used as a shut off to a water column shall be sealed ____ and ____. -- correct answer --sealed open and locked HRT fire tube boiler what is the minimum water level in a gage glass? -- correct answer --3" what can be attached to the same outlet from a super heater that is used also for the safety valve connection? -- correct answer --soot blower a safety valve over 3" and over 15 psig shall have what type of inlet connection? -- correct answer --flanged or welded the discharge of safety valves or safety relief valves shall be located so as to prevent ____. -- correct answer --scalding safety valve plate has what? -- correct answer --name, manufacturer #, size, seat, pressure (psig), year built, capacity, capacity lift, ASME where an isolation transformer is provided, one conductor of the secondary winding shall be? -- correct answer --grounded when would a heat exchanger not need shut off valves? -- correct answer -- when it is integral with the boiler the flash point in a hydronic system is ___*F above the maximum operating temperature. -- correct answer --50*F the slope of piping for condensate is ___% -- correct answer --1% steel pipe supports are spaced every ___ ft horizontal and ___ ft vertical. -- correct answer --12 ft horizontal, 15 ft vertical steel tube supports are spaced every ___ ft horizontal and ___ ft vertical. -- correct answer --8 ft horizontal, 10 ft vertical inspection frequency of low pressure steam internal and external? -- correct answer --internal every 3 years and external every 2 years inspection frequency of low pressure hot water internal and external? -- correct answer --internal every 5 years and external every 2 years inspection frequency of high pressure steam internal and external? -- correct answer --internal every 1 year and external every 1 year inspection frequency of high pressure hot water internal and external? -- correct answer --internal every 3 years and external every 1 year FS = -- correct answer --factor of safety allowed by this subpart importance of water column? -- correct answer --To get steam temp, pressure, boiler level, to attach glass gage so that level can be read easily why we blowdown water column? -- correct answer --ensure proper level reading, remove sediments low water level in boiler causes? -- correct answer --overheating of tubes, steam surging bad water treatment and scaling would most effect? -- correct answer -- shutdown and startup, cycling and base load purpose of safety valve on outlet of superheater? -- correct answer -- what happens to DA when returning condensate is hotter than should be? -- correct answer --steam bypass closes, sprayers close, safety pops, vacuum breaker opens how does DA remove non-condensables from water? -- correct answer -- Centrifugal force, differential between water and steam, spraying and heating water Before the clean air act, concerned with? -- correct answer --Particulate matter, sulfur dioxide, CO2 at what pressure is a fusible plug NOT needed? -- correct answer --under 200 psi type of welding required on a 4" pipe -- correct answer --butt weld what type of plastic pipe permits for use for stab type insertion joints? -- correct answer --polyethylene plastic pipe and tubing for ground source heat pump loop systems renewable energy or fuel? -- correct answer --more expensive; 13% electric generation Which plant does not use steam in its electrical process? -- correct answer -- Hydroelectric valve body of cast iron is permitted when? -- correct answer --Never on high temp water boilers. Cast iron blow off cocks allowed under 200 psi if not a htwb. what protects the boiler from expansion and contraction of steam mains connected to boiler? -- correct answer --expansion joints Used pipe, fittings, valves or other materials can be reused under what circumstances? -- correct answer --If clean and free of foreign materials How does an open feedwater heater remove oxygen? -- correct answer -- Tray deaerator: Spray deaerator: mixed tray-spray what type of joint is used for passing pipe to boiler? -- correct answer -- flange what 14 NYCRR exempt the inspection of boiler? -- correct answer --all boilers which are inspected by a duly authorized insurance company shall be exempt from inspection by the commissioner safety factor of second hand boiler with lap seam construction -- correct answer --6 what separate the boiler and non-boiler for desuperheater? -- correct answer --shut off valve What pressure shall a cast iron header not exceed? -- correct answer --160 psi A non return type steam trap discharges directly to the? -- correct answer -- Receiver or heater What is the maximum out of roundness for tube tolerance? -- correct answer --5/32" What are the specs on a miniature boiler shell, head, tube-sheet thickness? - - correct answer --Shell plate 1/4", seamless shell 3/16", heads used as tube sheets 5/16" Clean and tight refers to? -- correct answer --Inside and outside of a boiler, fireside and waterside, and overall operation of boiler room What are baffles used for in closed feedwater heaters? -- correct answer -- Direct water through the passes of the feedwater heater Qualification of welding inspector shall have a minimum radiography qualification of level? -- correct answer --2