New York High Pressure Boiler Practice Exam

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• What is a key characteristic of non-return type steam traps?
• To what pressure in psi can a fitting made of 95% copper be hydro tested up to?
• Which is NOT a method used to check a safety valve's capacity?
• How should all openings in a miniature boiler be constructed?
• What is the maximum temperature rating for relief valves on a low-pressure boiler?
• Which document outlines boiler and pressure vessel safety regulations?
• What is the primary purpose of a soot blower in a boiler system?
• Where is the remote disconnect typically located?
• In the formula (TS x t x E) / (R x FS), what does 'E' represent?
• What is the lowest part of a water gauge supposed to be positioned above?
• What pressure should a system using utility street steam maintain?
• What type of welding is required on a 4" pipe?
• What is a critical function of gauge glasses in a high-pressure boiler?
• What is the minimum frequency for checking fusible plugs in a boiler?
• What is typically added to water in a Deaerator (DA)?
• Who must provide operation instructions for a new boiler?
• In a boiler system, what does the MAWP stand for?
• What is typically tested daily in relation to boiler operations?
• What is the maximum time a welder can work on hydronic pipes before needing requalification?
• What is the purpose of a pressure relief valve in a boiler?
• What is the standard capacity adjustment for a relief valve over 30 psig?
• What is the external inspection frequency for high pressure hot water systems?
• What consequence might arise if someone is found not following gas piping inspection regulations?
• What is the primary function of the water column in a boiler system?
• In what increments should gauges measuring pressures of 5 psig be calibrated?
• How does a deaerator (DA) remove non-condensables from water?
• How many days' notice is required for a hydrostatic inspection?
• What happens if a boiler's pressure exceeds its rated capacity?
• How do you prepare for a weld?
• What is the dial arc for a non-mercury gauge of magnitude 5 psig?
• What methods can be used to test a safety or relief valve for its rated capacity?
• Which standards are applied to gauges in boiler systems?
• What measures are used to protect a gauge from excessive pressure?
• Where should you check for the maximum setting of a safety and relief valve?
• What is the smoke density flame spread index?
• How often should bottom blow-off be conducted?
• What is the correct valve order on a desuperheater?
• What is the tensile strength of steel plate in pounds per square inch?
• What is the minimum gauge size for a non-mercury gauge of magnitude 3 psig?
• What does BTU stand for in heating systems?
• Why is it essential to maintain proper CO2 levels in boiler combustion?
• When rolling and expanding tubes, how far should they extend?
• What are the recommended minimum and maximum temperatures when performing a hydrostatic test?
• Before the Clean Air Act, which pollutants were primarily of concern in boiler operations?
• What is the internal diameter (ID) required for miniature boiler specifications?
• What is the purpose of a muffler installed on a safety or relief valve?
• Where should the products of combustion be conducted from a boiler?
• How often should you blow down the boiler?
• What is a primary reason fire tube boilers are preferred over water tube boilers?
• For electric boilers with a high capacity, what is a crucial safety measurement that must be addressed?
• What is the correct sequence for preparing a soldered joint?
• What is the consequence of not reporting cracks on the boiler shell?
• Which standard is associated with the specifications for plastic?
• What is the method used to test safeties on a new boiler?
• Who requires prior approval from the D.O.B in the event of an eminent health or safety hazard?
• Which type of joint is commonly used for connecting pipe sections in boiler systems?
• What does the stamp (S) indicate on a boiler?
• Who is responsible for ensuring that all controls of a boiler are set, adjusted, and tested?
• What is the primary purpose of the safety relief valve in a boiler system?
• What is the minimum blowdown percentage required for a spring loaded safety valve?
• How often should a bottom blow-off be performed?
• Which instrument is used to measure the water level in a boiler?
• What should be done if a boiler has a lap seal crack?
• Which addition is used specifically to prevent corrosion and scaling in boiler water?
• Which component is NOT typically included on a boiler's identification plate?
• Each superheater must have at least how many drains?
• According to HP code, what is the required vertical clearance around boilers?
• What type of protector valves must be used on boilers with water-jacketed furnace mouths?
• What safety feature is typically integrated into high pressure boiler systems?
• What is the maximum temperature for a low pressure hot water boiler?
• How many expansion tanks are required for a system with six boilers?
• If receiving 16-90 psig from an outside source, for what pressure should the system be designed?
• If no mechanical feed is attached to a boiler, what is the safety valve set pressure?
• What is the maximum heating surface area of a miniature boiler?
• What is the required number of threads for mechanical construction in miniature boilers?
• The minimum lift capacity requirement for safety valves is indicated on which component?
• How many complete turns are needed for a slow opening valve to go from fully closed to fully open?
• When replacing a safety valve, what must remain constant?
• A safety valve over 3 inches and over 15 psig shall have what type of inlet connection?
• When a safety valve pops, it must relieve pressure without allowing it to rise more than what percentage?
• What is the only component that can be connected to a low water cut-out?
• How long should ground source heat pump loop systems be pressure tested at 100 psig?
• Where is the certificate of inspection placed in relation to the boiler?
• Which standards are utilized for gauges in boiler systems?
• With what safety fitting should high pressure steam and water boilers be protected?
• Gas fired boilers not exceeding 100 square feet of heating surface must be equipped with which type of hood diverter?
• Spring loaded safety valves should have a total combined relieving capacity of what percentage of the boiler's max designed capacity?
• What type of welding is required for pipes that are 2 inches or more in diameter?
• What should be done regularly to ensure the functioning of boiler safety devices?
• Who is responsible for authorizing changes to high-pressure piping anchors, guides, and expansion joints that do not affect health and safety?
• What is an effective method for verifying boiler safety valve performance?
• What is the only component that can be tapped onto a low water cut out?
• What is defined as potable water?
• Which of the following is the true psi reading when a gauge shows 175 psi and is situated 45 feet below the boiler connection?
• Under what condition can used pipe, fittings, and valves be reused?
• At what percentage should a boiler be hydrostatically tested?
• Before the Clean Air Act, which pollutant were boiler operations primarily concerned with?
• What type of scrubber is commonly found in incinerators?
• Which type of boiler is typically used for steam generation?
• What is the main consideration for the installation location of a relief valve?
• The street steam PSI and TEMP is reduced by a PRV to 90-16 pounds, which is designed as what type of system?
• When is a bullseye water sight glass acceptable on a miniature boiler?
• What should be placed between different joints and piping materials?
• What is the standard minimum distance from the top of a boiler to the ceiling?
• What is the maximum capacity increase for a safety valve that pops at 70 psig?
• Where should the gas service or distribution line from a new high pressure tank be installed?
• What is the acceptable range of gauge magnitude for measurements of 3 psig?
• What does the factor of safety refer to in high-pressure boiler systems?
• After welded repairs or alterations to boiler equipment, who must retain a copy of the repair report?
• How many gauge cocks are required on a boiler with less than 36 inches in height and 100 square feet of surface area?
• Before the Clean Air Act, what was a primary concern for boiler operations?
• What is the maximum size of a blowdown valve for boilers with less than 100 square feet of surface area?
• What is a common preparation step for welding?
• If you are reading 12% CO2, what does it indicate?
• How often does a welder working on hydronic pipes need to be requalified?
• What is the maximum pressure above the MAWP that power actuated relieving valves can handle?
• How many safety valves are required for an electric boiler operating at a maximum of 1100 kW?
• For a low pressure boiler, how much can the safety valve rise above the MAWP?
• Who is responsible for designing the boiler system?
• A miniature boiler has an inner diameter (ID) of shell of up to how many inches?
• How many visible gage cocks must be present along the length of the water glass?
• What is the risk associated with clogged strainers in a boiler system?
• In terms of boiler operations, what does MAWP stand for?
• What should be done to prevent corrosion in pipes?
• What is an effective stop for a gauge?
• What is the consequence of not following the required calibrations for gauges in boiler systems?
• What is the minimum distance a pressure tank should be from any gas services?
• What is used between two different types of metallic pipes when connecting them?
• What is the purpose of a muffler installed on a safety or relief valve?
• What is the minimum clearance required when maintenance is performed on top of boilers?
• At what pressure are extra heavy valves required to be installed?
• For high pressure steam systems, how often should internal inspections occur?
• What is the flame index of insulation?
• Which type of valve is commonly used to isolate equipment in a steam system?
• Where are records of inspections required to be kept?
• What does 'R' denote in the formula (TS x t x E) / (R x FS)?
• What pressure should a 400 psi boiler be hydrostatically tested at?
• What standard do plastic pipes and PVC in hydronic systems adhere to?
• What is the typical role of an architect in relation to boiler system design?
• What device in a steam gauge keeps the tube filled with water?
• Which boilers are exempt from inspection according to 14 NYCRR?
• What should be considered when determining the placement of a boiler in a building?
• What is the pressure requirement for a system using utility street steam?
• What key information is stamped on a boiler?
• How should any mouth protector on a boiler be secured?
• What does the variable 'TS' represent in the formula (TS x t x E) / (R x FS)?
• What is the typical size of gauge cocks on a boiler?
• What can be connected to a float chamber or water column?
• What is the minimum pressure at which a hydronic system should be tested?
• A miniature boiler has a maximum allowable working pressure (MAWP) of less than how many PSI?
• What is the minimum face size of a non-mercury gauge?
• What is the minimum water level in a gauge glass for a fire tube boiler?
• Which condition represents a significant risk during boiler operation?
• What percentage of MAWP do forced steam flow generator safety valves relieve?
• What is the maximum gross volume of a miniature boiler?
• What is the typical psi rating for a hydronic system mentioned?
• What is the maximum allowable out of roundness for tube tolerance?
• All boiler fittings must conform to which standard?
• What can be attached to the same outlet as the safety valve connection from a super heater?
• Which document should be available to confirm the certified welder's qualifications?
• What is an indicator of proper boiler operation?
• What is the maximum allowable safety valve blowdown percentage of the set pressure?
• What is the primary purpose of mufflers in boiler systems?
• In what increments should a gauge measuring a magnitude of 5 psig be calibrated at a minimum?
• Where is the absorber pump typically located?
• The discharge of safety valves or safety relief valves must be located to prevent what?
• Safety valves must be positioned to prevent which hazard in a boiler system?
• Who is responsible for designing the boiler system?
• How does an open feedwater heater remove oxygen from the water?
• At what pressure should safety valves be set?
• At what increment is pressure typically calibrated when measuring in the magnitude of 3 psig?
• Which types of joints may be repacked without a work permit?
• Who is responsible for certifying and calibrating all gauges utilized for testing?
• Which type of boiler is most likely to require safety valves at lower power outputs?
• Where does a low pressure safety and relief valve typically discharge?
• Who cannot oversee a gas piping inspection?
• Which type of installation is prohibited for mufflers?
• All piping over 2 inches must be what type of welded?
• How frequently should you inspect expansion joints?
• What is the minimum square footage of heating surface required for a fusible plug?
• Which type of electricity-generating plant does not utilize steam?
• Which steps are necessary to properly prepare a brazed joint?
• Which type of joints should hydronic piping connections between steel tubing and fittings use?
• What is the primary control mechanism for a fuel regulating governor?
• What must be included in the design plan for boiler installation?
• What are the specifications for a miniature boiler regarding its internal diameter (ID) and gross volume?
• What is the minimum power output in kW at which electric boilers require two or more safety valves?
• What does the term 'clean and tight' refer to in boiler operation?
• What type of bends are commonly used to accommodate thermal expansion in piping?
• What is the maximum allowed psig for a water column made of cast iron?
• How long should a hydronic system be hydrostatically tested?
• What factor influences the size of the safety valve on a boiler?
• What is the primary responsibility of the welding agency concerning welder qualifications?
• The flash point in a hydronic system is how many degrees Fahrenheit above the maximum operating temperature?
• When relocating a boiler within the state, to whom must an application for permission to install a second boiler be submitted?
• What is the maximum permissible pressure in a standard cast iron system?
• Who must obtain prior approval from the D.O.B during an eminent health or safety hazard?
• What is the minimum distance required from the wall to the boiler according to New York City construction code?
• What temperature corresponds to 200 psig in steam systems?
• After an inspector's notice is given to the owner, where is it posted?
• What critical information regarding the safety valve is required by ASME standards?
• How often does an insurance inspector inspect the boilers?
• When an isolation transformer is provided, one conductor of the secondary winding should be?
• At what point will the Low Water Cut-Off (LWCO) trip?
• What is a key difference between low pressure and high pressure safety relief valves?
• Which of the following actions is essential for boiler operators before starting operations?
• What function do safety valves perform in a boiler system?
• What is the primary role of a PRV in a steam system?
• How many BTUs does an average size plant use for each kilowatt/hour generated?
• What should a design plan of a boiler include?
• Where does a low pressure safety and relief valve typically discharge to?
• According to NYC construction codes, what is the minimum distance required from a wall to the boiler?
• What is the first step in preparing a weld?
• What device is used to protect the boiler from expansion and contraction of steam mains?
• Which chemical is recommended for oxygen scavenging in boiler water?
• PEX piping conforms to which standard?
• What method is used for adding a new tube to a fire tube boiler?
• What is the required size for the outlet of a blowoff tank?
• Which type of plastic pipe is suitable for stab type insertion joints?
• At what safety valve popping tolerance is the capacity set for pressures above 1000 psig?
• What is the slope percentage for piping used for condensate?
• Where should a gas service or distribution line from a new high pressure tank be installed?
• What happens to the MAWP when a boiler is derated?
• Piping insulation should have a maximum flame spread index of?
• What type of maintenance document must be generated after welded repairs to boiler equipment?
• The boiler shall be equipped with automatic devices responsive to variations in what?
• What is used to protect a bottom blow off pipe exposed to direct furnace heat?
• Why is it important to blow down the water column in a boiler?
• Where should the brass washout plugs of miniature boilers be installed?
• Which characteristic describes a centrifugal pump?
• What type of valve is commonly used to control the flow in high pressure boiler systems?
• What is considered an effective stop for a gauge?
• At what percentage is a boiler hydrostatically tested?
• What is a critical component in ensuring the successful operation of a high pressure boiler?
• Under what condition is a fusible plug not required to be installed on a boiler?
• Which statement accurately describes the process of steam generation from water?
• What range of gauge magnitude should not exceed 3 psig?
• What is a key component of boiler maintenance inspections?
• What information is typically found on a boiler's identification plate?
• What is checked during an accumulation test?
• How is the main steam pressure gauge tested?
• Who must furnish a control diagram and boiler operation instructions?
• For high pressure hot water systems, how often should internal inspections be conducted?
• What is the reseating pressure required for a safety valve?
• Which term relates to the use of a wet absorber nozzle in an incineration process?
• What is the minimum face size required for a non-mercury gauge?
• Who is responsible for enforcing the code related to plumbing installations?
• What provides a visual indication of water level in a boiler?
• What percentage of pressure indicates when a safety valve will lift completely?
• What is the correct procedure for adding a new tube to a water tube boiler?
• When connecting two different types of metallic pipes, what is used in between?
• What type of construction is recommended for openings in miniature boilers?
• Where should mufflers not be installed?
• What type of valve is specifically referenced in regards to safety measures for boilers?
• Which items are exempt from the reporting requirements?
• What is the lowest permissible water level in a miniature boiler?
• Where does a low-pressure safety and relief valve typically discharge to?
• What pressure must safety valves on forced steam flow generators pop at no less than?
• What is the minimum lift required for a safety valve?
• Which type of stress involves sliding layers in materials?
• Which component of the safety valve should not be adjusted during a hydrostatic test?
• Given a hydronic system running at 150 psi and rated to run at 115 psi, what is the maximum pressure it should not exceed?
• When water is converted to steam, how much does its volume increase?
• How far should a 5/16" tube thickness extend past the tube sheet if there is no bevel or recess?
• A heater for liquid fuels or harmful liquids should not be installed in what area of the boiler?
• Which system can be used to determine the evaporative capacity of feed water to test safety valves?
• What factor is considered when installing an expansion tank in a boiler system?
• What type of engine might require decreased back pressure for optimal performance?
• Wet bottom boilers should be set above the floor a minimum of how many inches?
• How often should HP piping expansion joints be inspected?
• Which component separates the boiler and non-boiler in a desuperheater?
• Who is responsible for overseeing welding done on a high-pressure tank?
• A fuel regulating governor is controlled by what factor?
• What is the minimum size of a feed water connection to a miniature boiler?
• What is the purpose of a pressure reducing valve in hydronic piping systems?
• How many of the washout plugs may be used as a blow down line?
• What is the consequence of clogged strainers in discharge and supply lines?
• In boiler systems, how is scaling typically caused?
• Brass pipes cannot be joined by which method?
• What is the main function of a damper regulator in a boiler system?
• Where does the gaseous waste of a boiler combustion go?
• How many gauge cocks are required if a boiler is not over 36 inches in diameter and does not exceed 100 sq ft of heating surface?
• What is the overall application of the formula (TS x t x E) / (R x FS)?
• How do you protect potable feed water for a boiler?
• What should be included in the documentation after a boiler inspection?
• A boiler operating at 100 psig requires how many fusible plugs if over 50 square feet?
• Which work performed on a boiler does not need to be reported and is considered exempt?
• What is the standard size for connections to a water column in a boiler?
• What conditions must be met for an internal high-pressure inspection of a boiler?
• What type of maintenance is crucial for ensuring boiler efficiency and safety?
• How often should boiler water levels be checked in a high-pressure system?
• Which energy source is associated with higher costs but a lower percentage of electric generation?
• How many brass washout plugs are required on a miniature boiler with less than 12" ID and less than 10 sq ft heating surface?
• What type of maintenance is primarily associated with high-pressure boiler systems?
• What are the specifications for a miniature boiler shell and head thickness?
• In the event of a water line failure, what is the primary concern?
• What is a common hazard associated with improper boiler maintenance?
• How often should expansion joints be inspected?
• In boiler operation, a safety valve must be capable of relieving pressure without allowing more than what level of rise?
• What is the minimum dial arc required on a 2-1/4" gauge?
• What is a potential consequence of a low water level in a boiler?
• For a system with 6 boilers, how many expansion tanks are needed?
• What information is found on a boiler identification plate?
• What is a common action taken to ensure boiler safety before operation?
• How should a remote disconnect for a boiler burner be labeled?
• Which component is critical when connecting pipes of dissimilar metals?
• How does a Deaerator (DA) remove oxygen and non-condensable gases?
• How many brass washout plugs are typically found in a miniature boiler?
• A discharge pipe used on a safety valve should be what size compared to the safety valve?
• Where should an inspector's notice be posted after being given to the owner of a boiler?
• Where is the test gauge typically connected?
• Where is the steam gauge installed on a mini boiler?
• What type of valve is used to control flow in a desuperheater?
• When rolling and expanding tubes, how far should they extend?
• What is the popping point tolerance for pressure settings of 301-1000 psig?
• During a hydrostatic test, safety valves are typically ____ or held by a ____?
• What type of joint is typically used for passing a pipe to a boiler?
• What is the primary concern with the installation of washout plugs on a miniature boiler?
• What type of valve is typically found between the boiler and a safety valve?
• What is a potential consequence of not regularly inspecting expansion joints?
• What is the minimum size of a drain on a super heater?
• What is the lowest allowable part of a water gauge in a boiler system?
• Where should a pressure relief valve be installed on a hydronic piping system that has reduced pressure?
• How much fresh air is needed for every 2,000,000 BTUs of fuel burned for low-pressure gas-fired burners?
• What type of welding is required for pipes that are 2 inches or more in diameter?
• What is used to ensure correct operation of a safety valve?
• What is the material composition of the safety valve seat for high-pressure systems?
• Which information is typically found on a safety valve plate?
• Why is proper water treatment crucial in boiler operation during cycling and base load?
• What type of valves must be present on a gravity fed boiler line?
• What should be done if a boiler is being reinstalled after a change in location?
• What is the minimum size of feed water piping for boilers with less than 100 sq ft of heating surface?
• What is the minimum relieving capacity for power actuated relieving valves?
• What is the role of a testing operator in boiler maintenance?
• What is the maximum output for a single safety valve on an electric boiler?
• Any valve used as a shut-off to a water column must be sealed how?
• How long is the pre-purge interval on a low pressure boiler?
• What is the recommended frequency for external inspections of low pressure steam systems?
• A non-return type steam trap discharges directly to which component?
• Where are the shutoff valves located on a pressure reducing valve (PRV)?
• How can safety valve capacity be checked?
• What component is essential for ensuring the safety of a boiler system by allowing controlled release of pressure?
• What happens to the deaerator (DA) when returning condensate is hotter than expected?
• What type of valve is typically present in the external piping of a desuperheater?
• What is the spacing requirement for steel tube supports horizontally and vertically?
• How far must a pressure tank be from any gas services?
• What is the pressure of one foot of water used to calculate true psi readings?
• How often should testing for water treatment of boiler feed water be conducted?
• At what pressure is a fusible plug typically not required in boiler operations?
• Who is responsible for setting operating and safety controls?
• What is a benefit of using a globe valve?
• Which schedule pipe is acceptable for boiler blowdown lines?
• What is the minimum size requirement for a safety valve?
• What kind of drain should a discharge pipe fitted on a safety valve have?
• What is the typical thickness of a seamless shell in a miniature boiler?
• What is a common outcome of inadequate blow-off procedures?
• When using a magnitude of 5 psig, what should the maximum pressure gauge reading not exceed?
• What might indicate the need for a safety valve replacement?
• What two welding methods can be used for piping over 2 inches in diameter?
• What is the effect of clogged strainers in discharge and supply lines?
• What do thermal expansion tanks typically prevent?
• What should be done with the boiler before conducting a hydrostatic test?
• What is an important safety procedure regarding boiler pressure testing?
• Which item is NOT exempt from reporting requirements of welds?
• How long is the pre-purge on a low pressure boiler?
• How many gage cocks are required for a boiler not exceeding 36 inches in diameter and 100 square feet of heating surface?
• What method can be employed to decrease back pressure on a condensing engine?
• How often are boilers inspected by an insurance inspector?
• For what purpose is a fusible plug utilized in boiler operations?
• Where should the siphon be located in relation to a gauge?
• What type of work on a boiler is exempt from reporting requirements?
• What is the minimum dial arc on a 2-1/4" gauge?
• How often should internal inspections be conducted for low pressure steam systems?
• What is the crushing strength of steel plate in pounds per square inch?
• Who is authorized to witness gas piping inspections?
• What are the minimum and maximum temperature limits for performing a hydrostatic test?
• What role does a feedwater regulator serve in a boiler system?
• What is the maximum range for a 3 psi gauge with a 2" diameter?
• What is the maximum size of the pipe for surface blow off?
• If a gauge reads 175 psi and it is located 45 feet below the connection point, what is its true reading?
• Why is it essential for an insurance company to inspect a logbook associated with a boiler system?
• What type of safety valves are typically used in these systems?
• What is the main purpose of a safety valve on a boiler?
• When is the use of a cast iron valve body permissible?
• Why is it important for a boiler to be 'clean and tight'?
• For what reason is bolt torque on fittings important in boiler maintenance?
• When installing an expansion tank, what factor must be taken into consideration?
• What is one of the common indicators of a low-pressure boiler malfunction?
• A low-pressure boiler requires inspection if it serves more than how many families?
• What is the requalification frequency for welders working on steam pipes?
• According to NYC code, what is the minimum working clearance around boilers?
• What is a method to prevent damage to piping due to temperature changes?
• Who is responsible for the spatial relationship between tanks and gas services?
• When should fusible plugs be replaced in a boiler?
• What should you do when adding a new tube to a water tube boiler?
• What is the function of a pressure relief valve?
• What device is installed on the line to prevent water hammer caused by a quick closing valve?
• What is typically the first step in troubleshooting a low-pressure boiler?
• What does the stamp (S) on a boiler signify?
• In the formula (TS x t x E) / (R x FS), what does 't' signify?
• How many water gauge glasses are required for boilers operating over 400 psig?
• How is the secondary winding of an isolation transformer configured?
• What size are brass washout plugs used in a mini boiler?
• What is the minimum size of blow off piping for a boiler?
• Which of the following are types of stress experienced in materials?
• What is a common method for checking the integrity of joints in boiler systems?
• What is the minimum radiography qualification level required for a welding inspector?
• If an electric boiler operates at a maximum of 1100 kW, how many safety valves are required?
• How many drains should each superheater be equipped with?
• What could indicate a potential issue with the operation of a high pressure boiler?
• How often must a welder who works on pressure tanks be requalified?
• Who authorizes changes to high pressure piping anchors, guides, and expansion joints without effect to health and safety?
• In case of violation, who needs to correct the spatial relationship issue?
• What is the effect of high CO2 levels in boiler emissions?
• If a reading shows 12% CO2, what does it indicate?
• Who is responsible for maintaining copies of the certified welder qualifications report?
• What is the purpose of a hydrotest on a new boiler?
• Which of the following is an allowed taping of a water column?
• Which type of boiler should be utilized for hot water systems?
• What is the significance of regular maintenance checks on a boiler system?
• Boilers have 2 bottom blowdowns when the MAWP exceeds what pressure?
• Natural gas has how many BTUs?
• Which of the following is not a common boiler fuel type?
• What is the minimum blowdown requirement for a spring loaded safety valve?
• What is the first step in conducting a hydrostatic test on a boiler?
• For pipes joined together in a boiler operating at 100 psi MAWP, what methods are used?
• How many safety valves are required on a miniature boiler?
• For how long should a hydronic system be pressure tested?
• In what scenario is a boiler required to have at least two means of feed water?
• What is the minimum reading increment for a digital gauge?
• What is the required minimum size of feed water piping for boilers with more than 100 sq ft of heating surface?
• What material is recommended to protect a bottom blow off pipe from direct furnace heat?
• What is the minimum size of a bottom blow off valve for a boiler?
• What is the frequency of internal inspections for high pressure steam systems?
• Where should a shutoff valve be installed in hydronic piping systems?
• What is the purpose of baffles in closed feedwater heaters?
• In which situation are shut-off valves not required for a heat exchanger?
• What is the standard pipe size of a gage cock connection?
• What is the primary purpose of a low water cut out in a boiler system?
• What is the purpose of the absorber pump in a boiler system?
• Brazed joints use a filler metal that conforms to which AWS standard?
• How many safety valves are typically found on a miniature boiler?
• What is the standard size of the overflow on an open type expansion tank?
• What action should be taken to ensure safety when using a discharge pipe with a safety valve?
• Who is authorized to witness a test on a gas piping system?
• What is the purpose of a safety valve in boiler systems?
• How many safety valves are required for a boiler with over 500 square feet of heating surface?
• Which type of pipes are generally not covered by boiler regulations?
• What does MAWP stand for in boiler terminology?
• What is the maximum pressure a cast iron header should not exceed?
• What is the size of the pipe typically used for a gauge cock connection?
• A low-pressure hot water boiler is considered to be low pressure below what pressure level?
• At what pressure does an 800 psi safety valve lift?
• How many safety valves are generally found on miniature boilers?
• What is the size of the inspector's test gauge connection?
• What is the minimum safety or relief valve capacity recommended for electric boilers?
• Which plant does not utilize steam in its electrical generation process?
• Repairs to safety valves must be performed by an organization holding which certification?
• How does improper water treatment and scaling primarily affect a boiler?
• What must be obtained before repairing or relocating joint anchorages or guides?
• For boilers over 36 inches tall and with more than 100 square feet of surface area, how many gauge cocks are required?
• What is the first step in preparing a soldered joint?
• How often should a boiler with a MAWP up to 400 psi be tested?
• Which device is used to calculate the moisture in steam?
• What is the safety factor for a second hand boiler with lap seam construction?
• How many gauge cocks does a boiler have if it has two water glasses on the same horizontal line?
• Where does a low pressure safety and relief valve typically discharge to?
• At what pressure range does a safety valve set to pop at 71-300 psig operate?
• How many complete turns are needed for a slow opening valve to go from fully closed to fully open?
• What is the purpose of the safety valve on the outlet of a superheater?
• What is the recommended airflow requirement in cfm for forced combustion air in relation to BTUs?
• How are remaining non-condensable gases treated in a DA?
• What happens if a boiler's pressure exceeds the MAWP?
• Where is the remote disconnect typically located, and how is it labeled?
• What temperature does a combustion regulator prevent water from rising above in relation to low-pressure boilers?
• What is the recommended practice for handling high-pressure gas in boiler operation?
• Which valve type is known for ease of repair and replacement of parts?
• How does the size limit of the heating surface area impact the operation of miniature boilers?
• What is the purpose of a pressure vacuum breaker?
• Which of the following information is not necessary to send to the Department of Buildings (DOB)?
• What is the calibration increment for a gauge measuring 3 psig?
• When is a water column required to have a shield or sleeve?
• What is one of the roles of a safety valve in steam systems?
• What might result from an effective blowdown process in the water column?
• How often should a boiler operating at 300 psi be tested?
• When are anchorage or guides for boilers inspected?
• What is the popping point tolerance for pressures of 1000 psig and above?
• In addition to sulfur dioxide, which other gas is important to monitor in boiler emissions?
• What is a key factor in selecting safety control devices for boilers?
• In relation to testing high-pressure steam piping systems, what is the appropriate standard for changes involving less than 30% of the piping?
• What is the relief capacity of a safety valve for a low pressure boiler under 30 psig?
• What does the stamp (h) on a boiler signify?
• What is the main difference between low pressure and high pressure safety relief valves?
• How many square feet of heating surface does a fusible plug require?
• Who, besides a state boiler inspector, can inspect the log book for a boiler?
• Steel pipe supports are typically spaced how many feet apart for horizontal and vertical sections respectively?
• Which chemical is commonly used for oxygen scavenging in boiler systems?
• Who files an application for a boiler alteration?
• What is the maximum size of the pipe used for surface blow off?
• Electric boilers are required to have two or more safety valves at what power output?
• When is it permissible to use a bullseye water sight glass on a miniature boiler?
• Which type of connection is most commonly used for testing gauges?
• What should be done if a heater for harmful liquids is to be installed?
• Which of the following should be done following a boiler inspection?
• What should be verified before installing a safety valve?
• In terms of space efficiency, fire tube boilers are known for?
• Where is the steam gauge installed on a mini boiler?
• How often shall a power boiler with a Maximum Allowable Working Pressure (MAWP) over 400 be tested?
• What is the first step in preparing a brazed joint?