STATIONARY ENGINEER FINAL EXAM ACTUAL QUESTIONS
AND SOLUTIONS RATED A+
✔✔Bolwdown Tanks - ✔✔Blowdown Tanks: Manage Temperature and Pressure
Boiler blowdown tanks are used to reduce the pressure and temperature of the
blowdown from a boiler. IN most states, it is unlawful to discharge blowdown directly
into the sewer system. They typically require boiler blowdown to be reduced to a
temperature of 140° F at a maximum pressure of 5PSIG.
✔✔BDS Blowdown Separators - ✔✔BDS Blowdown Separators
Precision Boilers' blowdown separators are used to temper high pressure boiler water to
an acceptable drain temperature. They are used where space constraints preclude the
use of blowdown tanks.
✔✔FT Flash Tanks - ✔✔FT Flash Tanks
Boiler flash tanks are used in systems that require flashing of high pressure condensate
to reduce its pressure and temperature before it is returned to the condensate receiver
or discharged into the sewer. Flash tanks are provided with an inlet for
condensate/steam, plus outlet, vent and drain connections.
✔✔AIR ATOMIZING OIL BURNER - ✔✔A burner for firing oil in which the oil is
atomized by compressed air, which is forced into and through one or more streams of
oil which results in the breaking of the oil into a fine spray
✔✔AIR VENT - ✔✔A valved opening in the top of the highest drum of a boiler or
pressure vessel for venting air.
✔✔ALKALINITY - ✔✔Represents the amount of carbonates, bicarbonates, hydroxides
and silicates or phosphates in the water and is reported as grains per gallon, or ppm as
calcium carbonate.
✔✔AQUASTAT - ✔✔Water limit temperature control, a safety device often used on
boilers.
✔✔ATOMIZER - ✔✔A device by means of which a liquid is reduced to a very fine spray.
✔✔AVAILABLE DRAFT - ✔✔The draft which may be utilized to cause the flow of air for
combustion or the flow of products of combustion.
✔✔BAFFLE - ✔✔A plate or wall for deflecting gases or liquids.
✔✔BAROMETRIC PRESSURE - ✔✔Atmospheric pressure as determined by a
barometer usually expressed in inches of mercury.
, ✔✔BLOWDOWN - ✔✔Boiler water that is removed from the boiler in order to maintain
the desired concentration levels of suspended and dissolved solids in the boiler and
removal of sludge.
✔✔BLOWDOWN SAFETY VALVE - ✔✔The difference between the pressure at which a
safety valve opens and at which it closes.
✔✔BLOWDOWN VALVE - ✔✔A valve generally used to continuously regulate
concentration of solids in the boiler, not a drain valve. (Often called continuous
blowdown.)
✔✔BLOW-OFF VALVE - ✔✔A specially designed, manually operated, valve that
connects to the boiler for the purpose of reducing the concentration of solids in the
boiler or for draining purposes. (Often called bottom blowdown.)
✔✔BLOWER - ✔✔A fan used to force air under pressure.
✔✔BOILER - ✔✔A closed vessel in which water is heated, steam is generated, steam is
superheated, or any combination thereof, under pressure or vacuum by the application
of heat from combustible fuels, electricity or nuclear energy.
✔✔BOILER HORSEPOWER - ✔✔The evaporation of 34-1/2 lbs of water per hour from
a temperature of 212 °F into dry saturated steam at the same temperature. Equivalent
to 33,475 Btu/hr.
✔✔BOILER RATING - ✔✔The heating capacity of a boiler expressed in boiler
horsepower, Btu/hour, or pounds of steam/hour.
✔✔BREECHING - ✔✔A duct that transports the products of combustion between parts
of a steam generating unit or to the stack.
✔✔BRIDGEWALL - ✔✔A wall in a furnace over which the products of combustion pass.
✔✔CaCO3 - ✔✔Calcium Carbonate.
✔✔CALORIE - ✔✔The mean calorie is 1/100 of the heat required to raise the
temperature of 1 gram of water from Zero C to 100 °C at a constant atmospheric
pressure. It is about equal to the quantity of heat required to raise one gram of water 1
°C. Another definition is: A calorie is 3600/860 joules.
✔✔CALORIMETER - ✔✔Apparatus for determining the calorific value of a fuel.
✔✔CARRYOVER - ✔✔chemical solids and liquid entrained with the steam from a
boiler.
AND SOLUTIONS RATED A+
✔✔Bolwdown Tanks - ✔✔Blowdown Tanks: Manage Temperature and Pressure
Boiler blowdown tanks are used to reduce the pressure and temperature of the
blowdown from a boiler. IN most states, it is unlawful to discharge blowdown directly
into the sewer system. They typically require boiler blowdown to be reduced to a
temperature of 140° F at a maximum pressure of 5PSIG.
✔✔BDS Blowdown Separators - ✔✔BDS Blowdown Separators
Precision Boilers' blowdown separators are used to temper high pressure boiler water to
an acceptable drain temperature. They are used where space constraints preclude the
use of blowdown tanks.
✔✔FT Flash Tanks - ✔✔FT Flash Tanks
Boiler flash tanks are used in systems that require flashing of high pressure condensate
to reduce its pressure and temperature before it is returned to the condensate receiver
or discharged into the sewer. Flash tanks are provided with an inlet for
condensate/steam, plus outlet, vent and drain connections.
✔✔AIR ATOMIZING OIL BURNER - ✔✔A burner for firing oil in which the oil is
atomized by compressed air, which is forced into and through one or more streams of
oil which results in the breaking of the oil into a fine spray
✔✔AIR VENT - ✔✔A valved opening in the top of the highest drum of a boiler or
pressure vessel for venting air.
✔✔ALKALINITY - ✔✔Represents the amount of carbonates, bicarbonates, hydroxides
and silicates or phosphates in the water and is reported as grains per gallon, or ppm as
calcium carbonate.
✔✔AQUASTAT - ✔✔Water limit temperature control, a safety device often used on
boilers.
✔✔ATOMIZER - ✔✔A device by means of which a liquid is reduced to a very fine spray.
✔✔AVAILABLE DRAFT - ✔✔The draft which may be utilized to cause the flow of air for
combustion or the flow of products of combustion.
✔✔BAFFLE - ✔✔A plate or wall for deflecting gases or liquids.
✔✔BAROMETRIC PRESSURE - ✔✔Atmospheric pressure as determined by a
barometer usually expressed in inches of mercury.
, ✔✔BLOWDOWN - ✔✔Boiler water that is removed from the boiler in order to maintain
the desired concentration levels of suspended and dissolved solids in the boiler and
removal of sludge.
✔✔BLOWDOWN SAFETY VALVE - ✔✔The difference between the pressure at which a
safety valve opens and at which it closes.
✔✔BLOWDOWN VALVE - ✔✔A valve generally used to continuously regulate
concentration of solids in the boiler, not a drain valve. (Often called continuous
blowdown.)
✔✔BLOW-OFF VALVE - ✔✔A specially designed, manually operated, valve that
connects to the boiler for the purpose of reducing the concentration of solids in the
boiler or for draining purposes. (Often called bottom blowdown.)
✔✔BLOWER - ✔✔A fan used to force air under pressure.
✔✔BOILER - ✔✔A closed vessel in which water is heated, steam is generated, steam is
superheated, or any combination thereof, under pressure or vacuum by the application
of heat from combustible fuels, electricity or nuclear energy.
✔✔BOILER HORSEPOWER - ✔✔The evaporation of 34-1/2 lbs of water per hour from
a temperature of 212 °F into dry saturated steam at the same temperature. Equivalent
to 33,475 Btu/hr.
✔✔BOILER RATING - ✔✔The heating capacity of a boiler expressed in boiler
horsepower, Btu/hour, or pounds of steam/hour.
✔✔BREECHING - ✔✔A duct that transports the products of combustion between parts
of a steam generating unit or to the stack.
✔✔BRIDGEWALL - ✔✔A wall in a furnace over which the products of combustion pass.
✔✔CaCO3 - ✔✔Calcium Carbonate.
✔✔CALORIE - ✔✔The mean calorie is 1/100 of the heat required to raise the
temperature of 1 gram of water from Zero C to 100 °C at a constant atmospheric
pressure. It is about equal to the quantity of heat required to raise one gram of water 1
°C. Another definition is: A calorie is 3600/860 joules.
✔✔CALORIMETER - ✔✔Apparatus for determining the calorific value of a fuel.
✔✔CARRYOVER - ✔✔chemical solids and liquid entrained with the steam from a
boiler.
