Ohio Boiler Licensing Practice Exam

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How to Effectively Check for Leakage in a Pneumatic Feedwater Regulating SystemIn a pneumatic feedwater regulating system, how can control lines be checked for leakage?If superheater pressure gets too high, activate the safety valve to relieve excess pressureWhat action should be taken if the superheater pressure exceeds safe levels?Learn About Effective Methods for Softening WaterWhat is one common method to soften water besides heating it?Learn about the impact of temperature rise on superheater efficiencyHow much efficiency gain is produced by each 10-degree temperature rise in a superheater?Neglecting Boiler Maintenance Can Lead to Serious RisksWhat could be a consequence of failing to properly maintain a boiler?Neglecting Water Treatment Can Drastically Shorten Boiler LifespanWhat is a potential consequence of neglecting water treatment in boilers?Soot Accumulation: Understanding the Hidden Consequences of Incomplete Combustion in BoilersWhat is a common consequence of incomplete combustion in a boiler?Understand the Minimum Heating Surface Requirement for Boiler Operation in OhioWhat is the minimum square footage of heating surface at which you must have a license to operate the boiler?Understanding Cutout in Low Pressure Boiler OperationsOn a low pressure boiler, what does cutout equal?Understanding the Best Steam Trap for Low-Pressure Heating SystemsWhich type of steam trap is most commonly used in a low-pressure heating system?Understanding the Importance of Flue Gas Analysis for BoilersWhat is a method to check the relative quantity of air being supplied to the furnace?Understanding the Role of Drum Level in Boiler SystemsIn a three-element feedwater regulating system, which component serves as the analog input?Understanding the Role of Injectors in Steam Boiler SystemsA type of pump that uses the velocity of steam against the mass of water is known as what?Understanding the Urgency of Addressing Boiler Tube LeaksWhat is your primary concern if you discover a boiler tube leak?Understanding What Keeps Your Fuel Oil Burner Running SmoothlyWhat would not cause your fuel oil burner to go out?Understanding When to Renew Your Boiler LicenseWhen should your boiler license be renewed each year?Understanding When Your Water Level Indicator Requires MaintenanceWhat condition indicates that a water level indicator may need maintenance?What material is commonly placed inside a boiler for long-term layup?When preparing a boiler for long-term layup, what material is commonly placed inside the boiler?What to Do When Your Boiler is Priming ExcessivelyWhat action should you take if a boiler is priming so badly that you cannot see the water level?Why ensuring adequate superheat temperature is the key safety measure in superheated boiler operationsWhich safety measure is critical in superheated boiler operations?Why Fuel Oils Are a Cleaner Choice Than CoalWhat is a significant advantage of using fuel oils over coal?
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  • How are fuel oil strainers normally configured in a system?
  • What is the last step to be performed when shutting down a boiler?
  • What is the minimum frequency for cleaning a strainer that protects the automatic makeup feeder in a low pressure boiler?
  • What can cause vibrations in a turbine?
  • What is the primary role of a steam trap in a steam system?
  • What is the primary purpose of silica gel during a dry layup?
  • What type of steam turbine has steam take-offs prior to going to the condenser?
  • What is the minimum pressure above which the exhaust side of a steam turbine may be protected by a safety valve or rupture disc?
  • Which is a common safety feature in a boiler system?
  • What key aspect does a pigtail siphon provide in boiler instrumentation?
  • How can you find the water level if the gauge glass is broken?
  • When adjusting the firing rate due to foaming, what should also be considered?
  • What should happen if you suddenly lose the ID fan on a balanced draft boiler installation equipped with interlocks?
  • Why is it important to maintain a fuel oil burner regularly?
  • Which of the following is NOT a purpose of the feedwater tank?
  • What is one purpose of the feedwater tank in a boiler system?
  • What is the maximum acceptable level of dissolved solids in steam supplied to a steam turbine?
  • What is a key difference between a check valve and a non-return valve?
  • Which chemical is commonly used to manage algae accumulation in cooling towers?
  • What limitations does a pump that must draw its suction from below face?
  • Which component is essential for the ignition of fuel oil in a burner system?
  • If a safety valve is set on a 50 psi boiler system, what is the maximum pressure that may develop during safety valve blowdown?
  • If a priming situation occurs, what should be done?
  • What is the primary function of a microcomputer burner control system (MBCS)?
  • What does the operation of a thermostatic steam trap depend on?
  • What cannot be used to determine the relative air quantity delivered to the furnace during normal boiler operation?
  • Which type of pump is best suited for use with the fuel oil burner system?
  • What is cast iron or ductile iron pipe primarily used for?
  • What is an action you should avoid during a boiler startup?
  • In a low-pressure boiler using a screw-feed retort stoker, what area is NOT considered a combustion zone?
  • Which type of steam trap contains both a piston and a valve?
  • What is the minimum size of an elliptical manhole on a boiler?
  • What should not be done to valves connected to a water column while the boiler is in operation?
  • What property should lubricating oil in a turbine not possess?
  • A lubrication with a low viscosity is usually adapted for what type of use?
  • For how long may an operator be away from the boiler without risking safety?
  • What is the most economical method for partially loading a small steam turbine?
  • What can bad washers in a low-pressure boiler's gauge glass cause?
  • What should you not lock out when a boiler is shut down for inspection?
  • A centrifugal turbine pump is primarily characterized by what feature?
  • How often should the oil burner be cleaned on a high pressure boiler when firing heavy oils?
  • What limits the amount of coal that can be burned per square foot of grate surface?
  • In a steam system, what is the impact of air presence on heat transfer efficiency?
  • What is the first thing that must be done when starting up a brand new boiler?
  • What items can an electronic flue gas analyzer read?
  • What type of water can be added to a boiler without treating it first?
  • If a high pressure boiler operates at 100 psig, what should the blowback of the safety valve be?
  • How long does it typically take for the boiler water level to drop from half a sight glass to no water showing?
  • When a steam turbine operates in a condensing manner, what is the primary purpose of the atmospheric relief valve?
  • In which situation is copper tubing not suitable for steam service?
  • Which type of heat transfer takes place by actual physical contact, from molecule to molecule, without displacing the molecules?
  • What advantage does a filter baghouse have over an electrostatic precipitator in its operation?
  • Which chemical is typically used to neutralize acidity in boiler treatment?
  • Which action indicates proper maintenance of a gauge glass?
  • What is a true statement about the operation of induced draft cooling towers?
  • An infrared sensor uses what type of scanning device to detect a flame?
  • What should be the minimum air flow during the pre-purge of a gas or oil fired boiler?
  • Your economizer raises the temperature of the feedwater by 10 degrees. What is the efficiency rate increase associated with this?
  • What happens if condensation is not properly drained from a steam system?
  • What is the primary function of a dashpot in a steam turbine governor?
  • What is the minimum size of piping that can be used on a pressure gauge?
  • What is the proper temperature range for turbine bearings during normal operation?
  • When starting a fire in a coal-fired boiler with chain grates or traveling grates, how much coal should be on the grates?
  • What is the first step to take when shutting down a steam turbine?
  • How much of the total steam produced by a boiler is relieved by a superheater safety valve?
  • What is the draft condition recommended when using soot blowers?
  • What is an example of a cogeneration system?
  • How should the pressure switch be installed on a low pressure boiler?
  • What is one of the main purposes of a valve in a steam system?
  • What is the percentage of excess air needed for complete combustion when using a fuel oil burner?
  • How often should the flame scanner be tested?
  • What is not a type of firetube boiler?
  • What condition does graphitization cause in boiler steel?
  • What type of feedwater regulator is considered best for a boiler that experiences wide pressure and load swings?
  • What is a potential consequence of not maintaining a minimum steam flow through the superheater?
  • What is the maximum recommended concentration of calcium chloride in a boiler when the feedwater averages 6 ppm?
  • How does the efficiency of a boiler change with a rise in feedwater temperature?
  • If your boiler license expires, how long do you have to renew it before you must retest?
  • To prevent what adverse condition should the pH of water in the cooling system be kept above 7?
  • What is the role of the condensate pump in a surface condenser?
  • Why is it important to maintain proper water levels in a boiler?
  • How often are sootblowers for economizers and air preheaters used when firing coal?
  • When designing a boiler, special consideration must be given to heat transmission by?
  • What is a critical reason for monitoring steam quality in a superheated boiler?
  • If the tubes in a boiler are expanded during installation, what will be true?
  • A boiler is considered an industrial boiler when?
  • Which component is essential for draining condensate in a steam system?
  • What is the minimum steam flow that should be maintained through the superheater?
  • What is the first step to take when warming up a tubular gauge glass?
  • What is the desirable condition for operation of a boiler with a superheater for maximum economy?
  • What should be the valve configuration when starting a centrifugal pump?
  • Which factor is crucial for preventing corrosion in boiler systems?
  • When the water in a boiler is foaming, how will the water level appear in the gauge glass?
  • Utility boilers are primarily used to produce?
  • When testing a safety valve manually on a low-pressure boiler, how long do you hold it open?
  • If you are found in violation of licensing rules, what is the first warning you will receive?
  • What are the potential results of flame impingement on boiler tubes?
  • For optimal performance in a fluidized bed coal boiler, the coal should be crushed to what size or smaller?
  • In which type of draft system is chimney design considered the least important?
  • What happens when water is added to the boiler?
  • What is the satisfactory concentration of chlorides in boiler water compared to feedwater in low and medium pressure boilers?
  • What should be done before relighting a pulverized coal-fired boiler after a flame failure?
  • What is the best way to achieve good water treatment results?
  • What can excessive ash buildup in a fuel oil burner lead to?
  • What is the only way to know for sure how much carbon monoxide you have coming out of the stack?
  • The energy needed to fill the suction side of a centrifugal pump and overcome friction and flow losses is referred to as what type of head?
  • For a low pressure boiler, what does a data plate marked 6900 lb indicate for a safety valve?
  • How can temporary hardness be removed from water?
  • When the water level in a steam boiler is proven to be low, what is the first step?
  • An impulse turbine utilizing one row of stationary steam nozzles to drive two rows of rotating blades is called what?
  • The efficiency of a spray pond or cooling tower is primarily based on which environmental factor?
  • What function does a pressure gauge serve in a boiler system?
  • What is a common practice to optimize the performance of cooling towers?
  • What is blistering of boiler metal?
  • During boiler maintenance, what is the primary risk to personnel?
  • Which of the following components is not typically used in the protection of the exhaust side of a steam turbine?
  • When upgrading your boiler license to a higher level, what must be done with the previous license?
  • Which flow measurement device employs a float within a tapered glass tube?
  • The frequency of ash removal in a coal-fired furnace with dumping grates should be determined by what factor?
  • Gas flames have a tendency to pulsate; this can be eliminated by?
  • What property should lube oil have at temperatures between 325 to 350 degrees?
  • What device is used to prevent overpressure in a steam turbine system?
  • What is the key to achieving smokeless combustion?
  • What is the pressure on a low pressure gas burner?
  • According to ASME code, how often should boiler blowdown occur if no water analysis is made?
  • When is it necessary to perform a pressure test on a boiler?
  • What component in a cooling tower primarily assists with the exchange of heat with the atmosphere?
  • How many square feet of heating surface are required to produce 1 hp in a watertube boiler?
  • What are the recommended percentages of underfire air versus overfire air when using a stoker coal-fired boiler?
  • Which statement is true regarding the operation of an overfeed stoker?
  • Which test is commonly used to measure hardness in water?
  • What can occur if the pH level in water becomes too low in a cooling system?
  • What is the primary purpose of a boiler's tri-cock?
  • What material is typically used to line the interior of a furnace?
  • Which factor is crucial before performing a hydrostatic test on a boiler?
  • What kind of steam is used in a feedwater heater if extraction steam from a turbine is utilized?
  • Which of the following is a slow deformation of metal over time under continual stress and high temperature?
  • What grade of fuel oil may be ignited by an electric spark from electrodes powered by an ignition transformer?
  • What type of feedwater regulator is equipped with a fuel shutoff feature?
  • What is the main purpose of monitoring boiler water levels?
  • Which type of water treatment is most effective for continuous operation boilers?
  • In a surface condenser system, what is the primary function of the hot well?
  • What action is recommended if there is a fire in the pulverizer?
  • Which valve should be checked first if a boiler is experiencing abnormal water levels?
  • In the context of steam turbines, what is the most critical factor to prevent system failures?
  • What is the primary difference between a high pressure gas burner and a low pressure gas burner?
  • What is the purpose of a flame scanner in a boiler?
  • Calcium and magnesium are removed by which external water treatment process that can be regenerated using sodium chloride?
  • Under what condition must a boiler have two bottom blowdown valves?
  • What does the term 'blowdown' refer to in the context of boiler operation?
  • Considering the limitation on materials of construction of a steam turbine, what is the maximum temperature of steam that may be used?
  • Before operating manually controlled sootblowers on a boiler, what should be done first?
  • What determines the need for a safety valve on a steam turbine?
  • What is not a type of automatic combustion control system?
  • What is a reason the state can take your boiler license away?
  • What is another name for a low gas pressure switch?
  • If a closed feedwater heater is functioning properly, what should be the temperature of the feedwater as it exits the heater?
  • When taking a boiler out of service, what is one thing you do NOT do?
  • What is the correct procedure for cleaning a turbine oil cooler?
  • When laying up a boiler in a dry state, which substance is NOT used as a desiccant?
  • What condition can occur in a boiler under stress with high alkalinity maintained?
  • Which non-destructive testing method is used to expose surface and near-surface flaws using a dust of iron particles?
  • Where must your boiler license be displayed?
  • If a boiler carries a large slug of water over into the steam, this condition is termed what?
  • What is the minimum percentage of oxygen that must be present in a confined space before entering?
  • What supplies the condensate pump on a surface condenser?
  • If a steam boiler is being taken out of service, what step should be taken first?
  • What pH value indicates alkalinity in water?
  • To raise the pH of boiler water, what should be added?
  • How do steam separators function in a steam system?
  • What is a consequence of using cold city water as makeup in a low pressure boiler system?
  • What is the temperature limit for preheated air when operating a stoker-fired boiler?
  • What does the term "net positive suction head" refer to in relation to a centrifugal pump?
  • Which of the following best describes the main purpose of a drain valve in a steam system?
  • If a boiler pressure is greater than or equal to 400 psig, what is required?
  • What controls the flow of natural gas to the gas burner to ensure the proper combustion rate?
  • What parts make up the heating surface in a scotch marine firetube boiler?
  • What is the minimum blowback on a safety valve that pops at 250 psig?
  • What type of valve is typically placed between the condenser and the turbine when operating in condensing mode?
  • A well-maintained wet scrubber can absorb what percentage of SO2 in the flue gas?
  • What is one function that a bottom blowdown does not perform?
  • What is the minimum temperature of water to be used for a hydrostatic test?
  • What action must be taken when a boiler is put into service?
  • When should sootblowers for heating surfaces be utilized when firing coal?
  • What is the term for the process of adding water to enhance combustion in a coal-fired boiler?
  • For what reason is it important for lube oil to not give off volatile vapors?
  • A steam turbine that operates at 500 psi is considered what type of pressure?
  • When banking a fuel oil-fired boiler, what should you do?
  • When taking a boiler offline, what is the first step?
  • What happens to the ID of a tube when a new tube is installed in a firetube boiler?
  • When comparing fuel oils to coal, what is true?
  • Which instrument is not used to measure the quantity of combustion air?
  • What is a likely consequence of ignoring a boiler tube leak?
  • What is a key benefit of using a zeolite softener for water treatment?
  • To keep an electrostatic precipitator working effectively, you should?
  • What is true about welding performed on boilers?
  • What is the maximum pressure for using a seatless-type blowdown valve?
  • If laying up a boiler for a short time, what concentration of caustic soda should be maintained in the boiler water?
  • When should a non-return valve be opened when putting a boiler online?
  • What equipment is primarily used to reduce sulfur dioxide (SO2) emissions?
  • If a high-pressure boiler is operating below its MAWP, where should the pointer on the pressure gauge be?
  • What should be done if a watertube boiler experiences a tube rupture?
  • What factor must be considered when selecting materials for the construction of a flue gas scrubber system?
  • How many square feet of heating surface are required to produce 1 hp in a vertical firetube boiler?
  • What should be done if unusual vibrations are detected in a boiler?
  • The performance and lifespan of a centrifugal pump depend majorly on what components?
  • When used on a boiler, what is the minimum sized steel pipe that can be utilized?
  • During an accumulation test, the boiler is fired at which of the following?
  • Which water test utilizes a color comparison method?
  • What can occur if water accumulates in a steam system?
  • Where must a drain valve be installed in relation to the main steam line?
  • On what type of boiler are sootblowers primarily used?
  • What is the maximum allowable blowback on a safety relief valve set for 100 psig?
  • Which condition caused by improper water treatment may be corrected by maintaining proper alkalinity?
  • What condition can oils and solids accumulation on the water surface in the boiler lead to?
  • What compound is produced from the reaction between sodium sulfite and oxygen?
  • Where does water exit the blowdown tank?
  • What material is typically recommended for low-pressure steam piping?
  • What is an indicator of excessive alkalinity in boiler water?
  • What fan blade design is most effective in preventing erosion from flyash particles in flue gas?
  • When the bottom blowdown valve on the water column is closed and water fills the gauge glass quickly to the center, what does this indicate?
  • What is the purpose of using copper sulfate in cooling towers?
  • Which type of boiler requires the least square footage of heating surface for 1 hp?
  • What principle describes the operation of a centrifugal pump?
  • What is true about an industrial boiler as compared to a utility boiler?
  • How can maintenance of an electrostatic precipitator be kept to a minimum?
  • What is a protrusion on a tube referred to as?
  • What is a common symptom of a malfunctioning fuel oil burner?
  • What is the cheapest and easiest form of water treatment?
  • What common type of expansion joint is used in steam distribution systems?
  • Which type of boiler is the most economical to build?
  • When activating an induced draft cooling tower, what is the last step in the procedure?
  • What is the term used for a gauge that reads higher than the actual boiler pressure?
  • What system is directly piped into your boiler flash tank?
  • Which of the following is true regarding a boiler pressure mercury switch?
  • What must you do if your boiler license is still valid and you lose it?
  • When lighting a low pressure gas burner on a LP boiler, what is the last step?
  • Which type of draft creates pressure that is lower than atmospheric pressure in the furnace?
  • How often should the makeup water feeder in a low pressure boiler be blown down?
  • How many square feet of heating surface are required to produce 1 hp in a HRT firetube boiler?
  • What is the maximum allowable working pressure (MAWP) in relation to a boiler's operation?
  • At what temperature range should cooling water be added to turbine bearings that are generating heat?
  • How quickly must a flame detector in an industrial boiler detect loss of flame?
  • What is the primary purpose of a water screen in a boiler?
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