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NYC HIGH PRESSURE STEAM EXAM Questions and Correct Answers , Exams of Biochemistry

University of LincolnBiochemistry

NYC HIGH PRESSURE STEAM EXAM Questions and Correct Answers

Typology: Exams

2023/2024

Available from 04/24/2024

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NYC HIGH PRESSURE STEAM EXAM
Questions and Correct 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? -
✔️10%. HP Code: 14-9.12
3 Who oversees the code for any plumbing installations? -
✔️The NYC Plumbing Code NYC Mech: 1002.1
4 When will anchorage or guides be inspected? -
✔️Annually. NYC Mech: 1210.3.1.2
5 How many brass washout plugs does a miniature boiler have? -
✔️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? -
✔️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? -
✔️2 hours at no less than 100 PSIG. NYC Mech: 1208.1
8 How is a gauge protected from excessive pressure? -
✔️Shut off Cock RCNY: 20-03 c,7
9 Who is authorized in witnessing a test on a gas piping system? -
✔️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? -
✔️Remote control for burner. NYC Mech: 1006.8.1
11 When is a fusible plug not needed to be installed on a boiler? -
✔️Over 200 PSIG. HP Code: 14-10.17, b
12 When shall a power boiler with a MAWP over 400 be tested? -
✔️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? -
✔️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? -
✔️Copies of the certified welder qualification report she'll be maintained by the
responsible WELDING AGENCY and the company performing the welding, and shall
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NYC HIGH PRESSURE STEAM EXAM

Questions and Correct 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? - ✔️10%. HP Code: 14-9. 3 Who oversees the code for any plumbing installations? - ✔️The NYC Plumbing Code NYC Mech: 1002. 4 When will anchorage or guides be inspected? - ✔️Annually. NYC Mech: 1210.3.1. 5 How many brass washout plugs does a miniature boiler have? - ✔️Not less than 3 Brass Washout Plugs 1 inches in size. HP Code 14-11. 6 How often are high pressure piping expansion joints inspected? - ✔️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? - ✔️2 hours at no less than 100 PSIG. NYC Mech: 1208. 8 How is a gauge protected from excessive pressure? - ✔️Shut off Cock RCNY: 20-03 c, 9 Who is authorized in witnessing a test on a gas piping system? - ✔️Plumbing Inspector, Architect, Licensed PE, Master Plumber, or Agency by the D.O.B RCNY 20-01 a,1, 10 How should a remote disconnect be labeled? - ✔️Remote control for burner. NYC Mech: 1006.8. 11 When is a fusible plug not needed to be installed on a boiler? - ✔️Over 200 PSIG. HP Code: 14-10.17, b 12 When shall a power boiler with a MAWP over 400 be tested? - ✔️Pressure tested annually ( safety valve). HP Code: 14-9.7, a, 13 What shall a Design plan of a boiler and application contain but not limited to? - ✔️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? - ✔️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. 15 Who needs to furnish a control diagram and boiler operation instructions? - ✔️The Installer. NYC Mech: 1004. 16 Who will certify and calibrate all gauges utilized for testing? - ✔️All gauges utilized for testing shall be calibrated and certified annually in accordance with ASME B40.100 by the test operathor. NYC Mech: 1011. 17 What shall be placed in between different joints and piping material? - ✔️An approved Adapter Fitting NYC Mech: 1203.1. 18 What items are exempt from the reporting requirements? - ✔️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-

  1. Who will be under control for any welding done to a High-pressure tank? - ✔️The welding shall be under controlled inspection of an ENGINEER, supervising a welding inspection agency acceptable to the DOB RCNY: 22-01 d, 20 At what pressure is it required to have extra heavy valves installed? - ✔️HP Code: 14-10.21b / 14-9.2,b 21 The -------------- files an application for a boiler alteration - ✔️Inspector HP Code: 14-3.3 c, 2, ii 22 How many safety valves does a boiler have with over 500 square feet of heating surface? - ✔️At least 2 HP Code: 14-9.4a 23 Gas fired Boilers not exceeding 100 square feet of heating surface shall de provided with a? - ✔️Single or Double Cone type of Hood Diverter in the stack HP Code: 14-6. 24 A heater for either liquid fuels or other liquids harmful to the boiler shall not be installed? - ✔️Directly in the steam or water space within a boiler. HP Code: 14-5. 25 Who is responsible for any spatial relationship between tanks and gas services? - ✔️The Installer of the last installation to correct the violation. RCNY: 22-01, c, Who is responsible for the setting of operating and safety controls? - ✔️The Installing Company NYC Mech: 1004. 27 With what safety fitting shall you protect High Pressure Steam and Water boilers with? - ✔️DUAL Low Water Cut Outs. NYC Mech: 1007.1. HP Code: 14- 1. 14, a

✔️2TIME the diameter of the Blowdown piping, 6 INCHES INTERNAL entering the bottom of the blow off tank. HP Code: 14-1.2,b 42 What info is not necessary to send to D.O.B? - ✔️Use, Type, Size, Location, Operation Temp. Of Pressure Tank, and Location, Type, Specs of Pressure Relief Valve RCNY: 22-01, b,1-

  1. Miniature boiler specs are ---------- I.D --------- ft gross volume -------- ft water heating surface -------- MAWP - ✔️16 Inner Diameter, 5 ft Gross Volume, 20 ft of heating surface, less than 100 PSIG. HP Code: 14-11.
  2. Safety valve popping tolerance + capacity up to 70 PSIG? 71-300 PSIG? 301- 1000 PSIG? > 1000 psig? - ✔️70 PSIG = 2 PSIG, 71-300 PSIG = 3%, 301-1000 PSIG = 10 PSIG, 1000 PSIG + = 1%. HP Code: 14-9.
  3. What are other ways of testing safety or relief valve for rated capacity? - ✔️Accumulation test, Amount of Fuel Burned, Evaporative Capacity of Feed water. HP Code: 14-9.9,d,1-3/ 14-10.14,a,1-
  4. What if someone is found not following the rules and regulation for gas piping inspections? - ✔️Revocation of License RCNY: 20-01,d
  5. What range of the gauge shall not excess when using a magnitude of 5 PSIG? - ✔️10 PSIG RCNY: 20-03,d,
  6. What can be connected to the float chamber or water column? - ✔️A Damper Regulator, a Feed water Regulator, a Gauge, a Drain. HP Code: 14- 9.36,
  7. On a steam gauge what keeps the tube filled with water? - ✔️A Siphon HP Code: 14-9.19,a
  8. The minimum working clearance around boilers is -----------? Vertical ----------? - ✔️The NYC code says 18", while the High Pressure code says 24" | both Vertical 7ft NYC Mech: 1004.3, 4-6.41,a,b/ 1004.3.1 HP Code: 14-2.
  9. Boilers shall have all controls set adjusted, and tested by - ✔️Hot water and steam boilers shall have all operating and safety control set and operationally tested by the INSTALLING CONTRACTOR. NYC Mech: 1004.
  10. Muffler shall - ✔️Have sufficient outlet area to prevent back pressure HP Code: 14-9.11,a
  11. External piping of a desuperheater in relation to a boiler has a --------- valve - ✔️{EXTERNAL} Stop Valve. HP Code: 14-9.14,c
  1. What shall a boiler with a MAWP (Maximum Allowable Working Pressure) up to 400 psi be tested? - ✔️Once a year. HP Code: 14-9.7,a,I,
  2. What is the minimum safety or relief valve capacity for electric boilers? - ✔️3 1/2 lb/hr/kw input. HP Code: 14-9.9,
  3. After welding repairs or alterations of the equipment, who shall retain a copy of the report? - ✔️THE OWNER of the equipment shall retain a copy of the report for review by an authorized inspector. HP Code: 14-3.4,a
  4. Any boiler changing location within the state may be reinstalled; an application for permission to install a second-hand boiler is filled with whom? - ✔️Commissioner. HP Code: 14-4.
  5. When is it necessary to go on top of boilers for maintenance how much clearance is needed? - ✔️7 FEET. NYC Mech: 1004.3.1. HP Code 14-2.
  6. Wet bottom boilers should be set above the floor no less than? - ✔️12". HP Code 14-2.2,c
  7. How do you set the pressure of the safety and relief valves? Find the -----------? - ✔️Find the Nameplate of the safety valve. HP Code: 14-9.
  8. If there is one safety valve on an electric boiler what is the maximum output? - ✔️Less than 1100 kW
  9. What pressure shall a system using utility street steam be designed for? - ✔️200 PSIG at 413* F which that is required by a pressure reducing valve. RCNY: 1210.2.1, 63.what chemical should be used for oxygen scavenging? - ✔️Sodium Sulfite or Sodium Hydroxide
  10. What is the minimum distance from the wall to the boiler? - ✔️18" NYC Construction Code, 24" in High Pressure Code. NYC Mech: 1004.3. HP Code: 14-2.
  11. What is the lowest part of a water gauge? - ✔️2" above the lowest permissible water level HP Code: 14-9. 16,b
  12. What standards are used on gauges? - ✔️ASME, ANSI. RCNY: 20-03,a,
  13. What is the only thing that could tap onto a low water cut-off? - ✔️A Drain. HP Code: 14-1.14,b,10/ 14-9.36,b,
  14. How many expansion tank are needed for 6 boilers? -

✔️Braze: Clean, Flux, Heat, Filler Metal Weld: Clean Convex, Weld a Filler Metal, Wire Wheel

  1. Mufflers are not to be installed on ---------? - ✔️High temperature hot water boilers. HP Code: 14-9.
  2. What will happen if your strainers from your discharge and supply lines are clogged? - ✔️Deep Vacuum.
  3. How many safety valves are on a miniature boiler? - ✔️At least 1 ( since only 20 sq ft ). HP Code: 14-11.
  4. When connecting two different types of metallic pipe what is used in between? - ✔️A dielectric fitting. NYC Mech: 1203.1.
  5. Where do you install gas service or distribution line from a new high pressure tank? - ✔️" All new high -pressure tank [ sic] installations she'll be located in ROOM SEPARATED from gas service or distribution lines." RCNY: 20-01,c,
  6. How many square feet of heating surface does a fusible plug require? - ✔️50 sq ft. HP Code: 14-1.
  7. Where does a low pressure safety and relief discharge to? - ✔️The drain. LP Code: 4-5.4,i
  8. Electric boilers have two or more safety valves at a power output of __________ KW - ✔️1100 KW or more. HP Code: 14-9.4,a
  9. If an electric boiler is operating at a max of 1100 kW how many safety valves are required? - ✔️2 HP Code: 14-9.
  10. When is a bullseye water sight glass acceptable on a miniature boiler? - ✔️When there is insufficient space for a gauge glass on a mini boiler. HP Code: 14-
  12. After an inspector notice is given to the owner where is it posted? - ✔️On or close to the boiler HP Code: 14-1.3,c
  13. What type of welding shall pipes of 2" or more have? - ✔️Butt Welding. NYC Mech: 1210.2.2.6.1 (2"). RCNY: 20-02,b,2,vii,a
  14. Gauge measure in the magnitude of 3 PSIG calibrated in increments of? - ✔️" The gauge shall be calibrated in increments of not greater than ONE-TENTH of a POUND" RCNY: 20-03,c,
  1. What are the minimum and the maximum temp when performing a hydrostatic test? - ✔️Above Ambient Temperature CODE: 70-120*F. HP Code: 14-3.3,d
  2. Where does a low pressure safety and relief valve discharge to? - ✔️A drain. LP Code: 4-4.4,i
  3. How do you prepare a soldered joint? - ✔️Joint surfaces shall be CLEANED. A FLUX conforming to ASTM B 813 shall be applied. The joint shall be SOLDERED with a solder conforming to ASTM B 32." NYC Mech: 1203.3.
  4. How often do you bottom blow off? - ✔️" Bottom blow off valves shall be tested DAILY when the boiler is in operation". HP Code: 14-9.29,f
  5. Who authorizes changes to High Pressure piping anchors, guides and expansion joints without effect to health and safety? - ✔️The professional Engineer. RCNY: 20-02.3. NYC Mech: 1210.3.
  6. When installing an expansion tank what factor is taken into consideration? - ✔️The MAWP (maximum allowable working pressure) of the boiler system. NYC Mech: 1009.
  7. If you are reading 12% Co2 what does it pertain to? - ✔️Incomplete Combustion
  8. When should you inspect expansion joints? - ✔️Weekly. RCNY: 20-02,a,2,i
  9. How far does a pressure tank have to be away from any gas services? - ✔️5 feet horizontal. RCNY: 22-01,c,
  10. Where is a remote disconnect located? What is it labeled? - ✔️Remote control for burner, located at the egress. NYC Mech: 1006.8.
  11. What range should a gauge with a magnitude of 3 PSIG shall not exceed? - ✔️1/10 increments @ 4.5 PSIG (1 1/2 X times). (They might say 5) to 6 PSIG (2x times). RCNY: 20-03,c,
  12. What is the minimum face size of a non Mercury gauge? - ✔️2 1/4"
  13. How many complete turns do a slow opening valve take from full-close to full- open? - ✔️At least 5 360* Turns. HP Code: 14-9.29,a,
  14. What is the size pipe of the surface blow off? - ✔️2 1/2" Max. HP Code: 14-9.27,a,

✔️High Pressure is Stainless " shall be of suitable material to resist corrosion", Low Pressure is Bronze/Stainless "shall be of material suitable to resist corrosion". HP Code: 14-9.13,b. LP Code: 4-5.3,d

  1. What is the minimum reading of a digital gauge? - ✔️1/1000 of a PSIG. RCNY: 20-03,e,
  2. Where do you find the maximum setting for the safety and relief valves? - ✔️The name plate of the Safety and Pressure Relief Valve. HP Code: 14-9.
  3. How many water gauge glasses are needed over 400 PSIG boilers? - ✔️Boiler operated at pressures over 400 psi shall be provided with Two water gauge glasses which mat be connected to a single water column or connected directly to the drum". HP Code: 14-9.16,a
  4. There must be --------- gauge cocks within the visible length of the water glass?
  • ✔️3 Visible HP Code: 14-9.18,a
  1. When will the LWCO trip? - ✔️A 1/4" below the lowest permissible water level given by the company who installed the LWCO. HP Code: 14-1.14,b,
  2. What pressure do you hydrostatic ally test a 400 psi boiler? - ✔️600 PSI " she'll be one and one-half times the maximum allowable working pressure". HP Code: 14-3.5/ 14-10.
  3. A boiler operates at 300 psi, it is tested once _________________? - ✔️Once a month and pressure test every year ( Safety Valve ). HP Code: 14-9.7,1,I,i iii
  4. When a safety valve is replaced what is different? - ✔️Shall be equal to the last valve installed. HP Code: 14-1.5,b / 14-9.7,2,b
  5. What pressure will a safety valve lift completely? - ✔️3%. HP Code: 14-9.
  6. Safety valve shall be set at? - ✔️The MAWP, " shall be set at or below the maximum allowable working pressure". HP Code: 14-9.6,a
  7. What kind of valve is located between the boiler and a safety valve? - ✔️None. HP Code14-9.10,c,
  8. Where no mechanical feed is attached to a boiler what is the safety valve set pressure? - ✔️6% HP Code: 14-9.9,e
  9. PEX conforms to - ✔️ASME/ (ASTM?). NYC Mech: 1201.3 / (1202.4?)
  1. Where shall a pressure relief valve be installed on a Hydronic piping system that has been reduced in pressure? - ✔️On the LOW PRESSURE Side of the system. NYC Mech: 1205.
  2. What size is the over flow on an open type of expansion tank? - ✔️1" NYC Mech: 1009.
  3. What size is the inspectors test gauge connection - ✔️1/4". HP Code: 14-9.
  4. Where is the test gauge connected to? - ✔️'' Shall be connected directly to the boiler or pressure vessel where it is visible to the operator throughout the duration of the test". NYC Mech: 1011.
  5. Brazed joints use a filler metal that conforms to AWS A ----? - ✔️AWS A 5.8. NYC Mech: 1203.3.
  6. Pipe Insulation shall have a maximum flame spread of ___________? - ✔️" Shall have a maximum flame spread index of 25". NYC Mech: 1204.
  7. Where does the gaseous waste of boiler combustion go? - ✔️" Shall be equipped with means for conducting products of combustion outside to the ATMOSPHERE". HP Code: 14-6.
  8. You blow down the boiler every? - ✔️" Bottom blowoff valves shall be tested DAILY when the boiler is in operation".
  9. The boiler shall be equipped with automatic devices responsive to variations in ___________ - ✔️Steam Pressure. HP Code: 14-1.17,b/14-11.12 ( miniature boiler )
  10. What are all the specs of a Non Mercury gauge of magnitude of 3 psig - ✔️Has a min of a 2 1/4" gauge, dial 270* arc, Minimum increments of 1/10 PSIG, SHUTOFF COCK, indicating point AT ZERO and has a CALIBRATION SCREW RCNY: 20-03,c,(1-8)
  11. What are all the specs of a non Mercury gauge of magnitude of 5 PSIG - ✔️Has a minimum of 2 1/4" gauge dial, 270* arc, Minimum increments of 1/5 of a PSIG, SHUT OFF COCK, indicating point at ZERO, and has a CALIBRATION SCREW. RCNY: 20-03,d,(1-8)
  12. A boiler operates at 100 PSIG, how many fusible plugs are there? - ✔️1 Fusible Plug ( over 50 sqft). HP Code 14-1.15,a/14-10-17,b
  13. A boiler operating at 100 psi MAWP, how are pipes joined together? - ✔️Flanged or Welded. HP Code: 14-9.28,b,2/14-9.22,a,3/14.22,d,3,g Table P-
  14. If you were getting 16-90 PSIG from an outside source, what shall the system be designed for? -
  1. A combustion regulator prevents water from rising above -------- degree F or a steam pressure of ------- in relation to LPB (Low Pressure Boiler). - ✔️250 degree F or steam pressure of 15 PSIG LP Code: 4-5.
  2. The minimum size of a bottom blow off valve is? - ✔️" shall have a blowoff pipe connection fitted with a valve or cock not less than 3/ inch LP Code: 4-5.
  3. Relief valves on LPB (Low Pressure Boiler) are rated up to ------- degree F - ✔️275 degree F. LP Code: 4-5.3,d
  4. What are the three different type of stress? - ✔️Compression, Shear, Tensile
  5. A low pressure boiler needs inspection if it occupies more than -------- families. - ✔️More than 6 families.
  6. One sq ft of fresh air from every --------- BTU's of fuel burned, in relation to LPB (Low Pressure Boiler) Gas Fire Burners. - ✔️" Shall have AT LEAST ONE Sq FT OF OPENING for the entry of fresh air for every 2,000,000 BTU's of fuel burned per hour". LP Code: 4-7.
  7. Hydrostatic Inspection must have days notice - ✔️" Such inspection shall be made not less than 15 days after notice thereof". HP Code: 14-2.1,a
  8. The certificate of inspection is place? - ✔️" The certificate of inspection shall be conspicuously posted under glass in the boiler room or the engine room". HP Code: 14-1.3,c
  9. A L.P Hot Water Boiler is considered low pressure below? - ✔️" Producing hot water at a gauge pressure not exceeding 160 PSI, or at a temperature not exceeding 250 degree F. LP Code: 4-1.2,K
  10. What size are brass wash out plugs on a mini boiler? - ✔️" Every miniature boiler shall be fitted with not less than brass washout plugs of 1" (ONE INCH IRON PIPE SIZE)". HP Code: 14-11.
  11. When you roll and expand tubes how far should they extend? - ✔️Evenly 1/4" , 1/2", 3/4", HP Code 14-9.2,e
  12. What item is not exempt from reporting requirements of welds? - ✔️Cracks on the boiler shell HP Code: 14-3.
  13. What is the valve order on a desuperheater? Boiler Proper->-------- ->--------- -
✔️Stop valve => Pressure Regulating Valve => Block Valve
  1. Who cannot oversee a gas piping inspection? - ✔️Insurance Company. RCNY: 20-
  1. Hydronic system runs at 150 PSI, Hydrostatic test at 225 PSI, rated to run at 115 PSI what pressure should it not exceed? - ✔️150 PSIG.
  2. How would you prevent damage to piping due to temperature changes? - ✔️Expansion Bends. NYC Mech: 1202.
  3. How do you protect portable feed water from a boiler? - ✔️Pressure Vacuum Breaker
  4. Brass pipes cannot be joined by - ✔️Solder. NYC Mech: 1203.5 " Joints between brass pipe or fittings shall be Brazed, mechanical, threaded or welded joints"
  5. In Relation to Testing of High Pressure steam Piping Systems, where the changes in an existing system involves less than 30% of the piping in the system, the test may be done in accordance with? - ✔️ASME. On Hydrostatic Tests
  6. Where is a siphon located? - ✔️Before the gauge. HP Code: 14-9.19,a
  7. ( Lamphrey Front) on boilers with water jacked boiler furnace month, protector valves are locked and sealed open shall be of what type? - ✔️STRAIGHTWAY TYPE". HP Code: 14-10.
  8. Ground source heat pump loop systems should be pressure tested for ------- minutes at -------- psi - ✔️"The assembled loop system shall be pressure tested with water at 100 psi for 30 minutes with no observed leaks". NYC Mech: 1208.1.
  9. Street steam PSI and TEMP is then reduced by PRV to 90-16 pounds which is Designed as a ------ PSIG system. - ✔️" The system shall be designed for 125 PSIG". NYC Mech: 1210.2.1,
  10. Forced steam flow generator safety valve relieve --------- of the MAWP, they pop at no less than ----% of the MAWP and no higher than -----% MAWP and shall have -------- "fail safe" to stop the flow of ------ and ---------- to the boiler, these valves then reseat at no less than -------% - ✔️Relieve 100% of the MAWP pop no LESS than 10% and no HIGHER than 20%, with 2 FAIL SAFES stopping the flow of fuel and feed water to the boiler, reseat NO LESS THAN 10%. Code: 14-9.
  11. On a boiler proper, if a safety valve pops it must relieve all the pressure without allowing that pressure to rise more than ------% above the highest pressure rated - ✔️6%. HP Code 14-9.9,e
  12. Safety valves are a ----------_ ----------- type? - ✔️Pop - spring type

  1. All miniature boiler openings in the boiler shall be ( construction ) ---------- of ------------ reinforcement? How many threads - ✔️Mechanical Construction with a minimum of 4 thread, or Welded. " All threaded openings in the boiler shall be provided with a RIVETED or WELDED reinforcement, if necessary, to give FOUR full threads therein". HP Code: 14-11.

  2. How many brass washout plugs are on a Miniature boiler with less than 12 " ID of shell and less than 10 sq ft of heating surface? - ✔️" Need have not more than TWO one-inch openings for clean out, one of witch may be used for the attachment of the blowoff valve". HP Code: 14-11.

  3. Where the brass washout plugs of miniature boilers shall be screwed into? - ✔️" shall be screwed into openings in the shell NEAR THE BOTTOM". HP CODE: 14-11.

  4. A miniature boiler has less than -------- MAWP - ✔️Less than 100 PSI MAWP. HP Code: 14-11.1,a,

  5. A miniature boiler has up to ------ sq ft of heating surface? - ✔️20 Sq Ft of heating surface. HP Code: 14-11.1,a,

  6. A miniature boiler has up to -------- cubic ft of gross volume? - ✔️5 Cubic Ft of gross volume. HP Code: 14-11.1,a,

  7. A miniature boiler has up to --" of ID of shell? - ✔️16 INCHES inside diameter of shell HP Code: 14-11.1,a,

  8. Any MOUTH PROTECTOR on a boiler shall be locked or sealed ------. What type? - ✔Locked or Sealed Open, of the Straight Way Type. HP Code: 14- 10.

  9. When are fusible plugs replaced? - ✔️" shall be renewed ANNUALLY" HP Code: 14-10.17,b

  10. When a discharge pipe is used on a safety valve it shall be --------- ( size ) of the safety valve, and fitted with a ------- drain? - ✔️" Shall be NOT LESS THAN THE FULL SIZE OF THE VALVE, and the discharge pipe shall be fitted with an OPEN DRAIN to prevent water lodging in the upper part of the safety valve or in the pipe". HP Code: 14-10.

  11. Three different ways to check the safety valve capacity? - ✔️ACCUMULATION TEST, MAXIMUM AMOUNT OF FUEL that can be burned, MAXIMUM EVAPORATIVE CAPACITY by measuring feed water. HP Code: 14- 10.14,a ( 1-3 )

  12. If a boiler has a Lap Seal Crack it shall be? - ✔️" Shall be permanently discontinued for use under steam pressure". HP Code: 14-

  14. What is stamped on Boiler? - ✔️Serial #, Name Manufacturer, Serial # of manufacturer, MAWP, Heating Surface, Year Built, and Rated Steam Capacity. HP Code: 14-9,43,d, (1-6)

  15. What is the stamp on a boiler identification plate? - ✔️NAME, ID #, CLASS, Tensile Strength ( according to high pressure code ). HP Code: 14-9.14,a

  16. Safety valves are ------- or held by a ---------- during a hydrostatic test? - ✔️" The safety valve or valves shall be REMOVED or each valve disk shall be held by its seat by means of a TESTING CLAMP"

  17. If a boiler is gravity fed, there shall be what valves on the line? - ✔️A stop valve as close as the boiler as possible followed by a Check Valve.

  18. What must you not adjust on the safety valve during a hydrostatic test? - ✔️" Not by screwing down THE COMPRESSION SCREW upon the spring". HP Code: 14-9.40,b.

  19. What is the max PSIG of a water column constructed of Cast Iron? Malleable Iron? - ✔️Cast Iron = 250 PSIG Malleable Iron = 350 PSIG. HP Code: 14-9.36,b

  20. What is the minimum size of the blow off piping? - ✔️3/4"

  21. When shall a water column have a shield of a sleeve? - ✔️Over 400 PSIG. HP Code: 14-9.36,a

  22. 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? - ✔️Less than 100 sq ft no less than 1/2" and more than 100 sq ft, no less than 3/4". HP Code: 14-9.34,c

  23. When shall a boiler have at least two means of feed water - ✔️" boiler having MORE THAN 500 SQUARE FEET of water-heating surface shall have at least two means of feeding water". HP Code" 14 -9.34,a 223, how many drains are on a super heater, and is the minimum size in inches? - ✔️1 drain measuring a minimum of 1"

  24. Boilers have 2 bottom blow downs when the MAWP exceeds-------- PSI - ✔️100 PSIG

  25. What schedule pipe can you use on boiler blow down lines? - ✔️Schedule 80

  26. What is the Maximum size of a blow down valve? Minimum size and less than how many sq feet. - ✔️MAX 2 1/2", MIN 1" ( less than 100 sq ft min 3/4". HP Code: 14-9.27b,

  1. The flash point in a Hydronic system is -- F* above the maximum operating temperature - ✔️50* F
  2. The slope of piping for condensate is --% - ✔️1%
  3. Piping Support ( Mechanical Code 2008 ) - ✔️A. Steel pipe support are spaced every 12 FT HORIZONTAL and 15 FT VERTICAL B. Steel tube support are spaced every 8 FT HORIZONTAL and 10 FT VERTICAL
  4. What is the Inspection Frequency of a Boiler? A. Low Pressure Steam Internal and External? B. Low Pressure Hot Water Internal and External? C. High Pressure Steam Internal and External? D. High Pressure Hot Water Boiler? - ✔️A. Internal every 3 years and External every 2 years B. Internal every 5 years and External every 2 years C. Internal every 1 year and External every 1 year. 2 How is the Main Steam pressure gauges tested? - ✔️With an Inspectors Gage. HP Code: 14-9.21, 14-10.19/NYC Mech:1011.