OHIO BOILERS 2026 EXAM TEST PAPER QUESTIONS
AND ANSWERS SURE A+
✔✔to raise the pH of boiler water, what should be added to the chemical treatment? -
✔✔Caustic soda
✔✔what condition caused by improper water treatment may be remedied by
maintaining proper alkalinity? - ✔✔foaming/ carryover
✔✔which test is used to measure hardness? - ✔✔soap test
✔✔which water test uses a color comparison test? - ✔✔pHOSPHATE
✔✔what is the satisfactory concentration of chlorides in the boiler water as compared to
the feedwater ( cycles of concentration) in low and medium pressure boilers? - ✔✔10
✔✔what is the max recommended concentration of calcium chloride in the boiler if the
boiler feedwater normally averages 6 ppm of calcium chloride? - ✔✔60ppm
✔✔whats one thing a bottom blowdown doesnt do? - ✔✔help a low water problem
, ✔✔when no boiler water analysis is made, what is the recommended frequency of
boiler blowdown per ASME code? - ✔✔every 24hrs
✔✔when must a boiler have two bottom blowdown valves? - ✔✔if the pressure is
greater than 100psi
✔✔what is the max pressure for which a seatless-type blowdown valve is used? -
✔✔450psi
✔✔where does the water leave the blowdown tank? - ✔✔the bottom or opposite the
inlet
✔✔what system is directly piped into your boiler flash tank? - ✔✔continuous blowdown
✔✔if you layup a boiler for a short time, what concentration of caustic soda should be
maintained in the boiler water? - ✔✔400ppm
✔✔when laying up a boiler for a long period of time, trays of what are placed inside the
boiler? - ✔✔silica gel. or quick lime/ hydrated lime
✔✔what is the purpose of silica gel? - ✔✔to absorbe moisture during a dry layup
✔✔When laying up a boiler in a dry state, what is not used as a desiccant? - ✔✔caustic
soda
✔✔what flow mesurement device uses a float in a tapered glass? - ✔✔a rotometer
✔✔what is used to line the inside of the furnace? - ✔✔first-quality firebrick
✔✔incomplete combustion is a cause of - ✔✔soot accumulation
✔✔adding water to promote combustion in a coal fired boiler is called? - ✔✔tempering
✔✔what is the secret to achieving smokeless combustion? - ✔✔burning all the
combustible material before soot particles can be formed
✔✔coal used in a fluidized bed coal boiler is to be crushed to a size of what? - ✔✔less
than 1/4"
✔✔what is true about the operation of an overfeed stoker? - ✔✔the coal is fed from
above the grates
AND ANSWERS SURE A+
✔✔to raise the pH of boiler water, what should be added to the chemical treatment? -
✔✔Caustic soda
✔✔what condition caused by improper water treatment may be remedied by
maintaining proper alkalinity? - ✔✔foaming/ carryover
✔✔which test is used to measure hardness? - ✔✔soap test
✔✔which water test uses a color comparison test? - ✔✔pHOSPHATE
✔✔what is the satisfactory concentration of chlorides in the boiler water as compared to
the feedwater ( cycles of concentration) in low and medium pressure boilers? - ✔✔10
✔✔what is the max recommended concentration of calcium chloride in the boiler if the
boiler feedwater normally averages 6 ppm of calcium chloride? - ✔✔60ppm
✔✔whats one thing a bottom blowdown doesnt do? - ✔✔help a low water problem
, ✔✔when no boiler water analysis is made, what is the recommended frequency of
boiler blowdown per ASME code? - ✔✔every 24hrs
✔✔when must a boiler have two bottom blowdown valves? - ✔✔if the pressure is
greater than 100psi
✔✔what is the max pressure for which a seatless-type blowdown valve is used? -
✔✔450psi
✔✔where does the water leave the blowdown tank? - ✔✔the bottom or opposite the
inlet
✔✔what system is directly piped into your boiler flash tank? - ✔✔continuous blowdown
✔✔if you layup a boiler for a short time, what concentration of caustic soda should be
maintained in the boiler water? - ✔✔400ppm
✔✔when laying up a boiler for a long period of time, trays of what are placed inside the
boiler? - ✔✔silica gel. or quick lime/ hydrated lime
✔✔what is the purpose of silica gel? - ✔✔to absorbe moisture during a dry layup
✔✔When laying up a boiler in a dry state, what is not used as a desiccant? - ✔✔caustic
soda
✔✔what flow mesurement device uses a float in a tapered glass? - ✔✔a rotometer
✔✔what is used to line the inside of the furnace? - ✔✔first-quality firebrick
✔✔incomplete combustion is a cause of - ✔✔soot accumulation
✔✔adding water to promote combustion in a coal fired boiler is called? - ✔✔tempering
✔✔what is the secret to achieving smokeless combustion? - ✔✔burning all the
combustible material before soot particles can be formed
✔✔coal used in a fluidized bed coal boiler is to be crushed to a size of what? - ✔✔less
than 1/4"
✔✔what is true about the operation of an overfeed stoker? - ✔✔the coal is fed from
above the grates
