STATIONARY ENGINEER FINAL PRACTICE
EXAMINATION 2026 QUESTIONS WITH
ANSWERS GRADED A+
◍ direct contact and surface condenser.
Answer: what are the two main types of condensers?
◍ -Cast iron sectional boiler "______ ______ Boiler".
Answer: Pork Chop
◍ to prevent air from entering the condenser.
Answer: why is it necessary to keep a water seal on the atmospheric relief
valve?
◍ 6.0.
Answer: what is the safety factor if the bursting PSI is 1200 psi and
allowable pressure is rated at 200 psi?
◍ -Oxygen causes pitting to boiler metal= form of _______.
Answer: corrosion
◍ selective catalytic reduction.
Answer: what controls NOx emissions for gas turbine plants?
◍ 1243.
Answer: how many cubic inches of steam space is in a cylinder of an engine
10"x24" with a stroke 2/3 of full travel?
◍ -Best way to control TDS is continuous ________..
Answer: blowdown
◍ secure the feed pump recirculation line valve and verify pressure.
Answer: a boiler operator warms up a boiler and cuts the boiler on line. the
boiler fires to full load and the operator notices the boiler water slowly
, decreasing
◍ 1 cubic foot of natural gas = 1,000 ____.
Answer: btu's
◍ -Chattering= rapid opening and closing of a safety ______.
Answer: valve
◍ - safety valve resets at a pressure slightly lower than the popping pressure-
the difference in pressure is called blowdown or _______.
Answer: blowback
◍ Condensate system has ________ vent on top. Condensate is treated to get
rid of ____________..
Answer: atmospheric, carbonic acid
◍ backwash, brine, rinse, service.
Answer: what is the process of a water softener? what are the four
regeneration steps for sodium zeolite softener?
◍ interlocks.
Answer: what are used between induced drafts fans, forced draft fans, and
combustion or burner equipment in order to avoid boiler combustion
problems?
◍ rupture disc.
Answer: what is fail-safe and ensures a seal-tight system and cannot reclose
itself? what is fail-safe and cannot be reclosed or reset if it malfunctions?
◍ -Functions of a steam separator: Conserves the energy of the steam, prevents
water hammer, protects equipment from impingement, removes water from
______..
Answer: steam
◍ -safety valves rated in pounds of steam per ______.
Answer: hour
◍ Too much excess air results in high heat loss and low boiler ________.
Answer: efficiency
, ◍ -Gas flow control valve opens ______..
Answer: slowly
◍ Phosphates are used to treat a boiler because they turn calcium and
magnesium into a non-adhering sludge that can be blown down _______.
Answer: easily
◍ ejectors.
Answer: how are non-condensables removed from the condenser?
◍ Perfect combustion is theoretical and can only be obtained in a ________..
Answer: laboratory
◍ 3206.2 psi, 705.6.
Answer: supercritical boilers operate above the _____ of the water-steam at
PSIA, and operating temperatures above _____ degrees F
◍ mixture of air and fuelatomization temperaturetime.
Answer: what does MATT stand for?
◍ A firetube boiler has more water per boiler horsepower, more dangerous and
more prone to a boiler explosion because of the high volume of ______.
Answer: water
◍ The fire point is when the fuel will _____ and continue to burn..
Answer: ignite
◍ -Fittings on a low pressure boiler are usually threaded/screw ______..
Answer: fittings
◍ 78.5.
Answer: what is the thermal efficiency % of a boiler with a stack
temperature of 600°F and a furnace of 2800 psi?
◍ -STEAM SEPARATOR DOES NOT ADD HEAT TO THE ______.
Answer: STEAM
◍ one line.
Answer: what type of diagram uses single lines and graphic symbols to
EXAMINATION 2026 QUESTIONS WITH
ANSWERS GRADED A+
◍ direct contact and surface condenser.
Answer: what are the two main types of condensers?
◍ -Cast iron sectional boiler "______ ______ Boiler".
Answer: Pork Chop
◍ to prevent air from entering the condenser.
Answer: why is it necessary to keep a water seal on the atmospheric relief
valve?
◍ 6.0.
Answer: what is the safety factor if the bursting PSI is 1200 psi and
allowable pressure is rated at 200 psi?
◍ -Oxygen causes pitting to boiler metal= form of _______.
Answer: corrosion
◍ selective catalytic reduction.
Answer: what controls NOx emissions for gas turbine plants?
◍ 1243.
Answer: how many cubic inches of steam space is in a cylinder of an engine
10"x24" with a stroke 2/3 of full travel?
◍ -Best way to control TDS is continuous ________..
Answer: blowdown
◍ secure the feed pump recirculation line valve and verify pressure.
Answer: a boiler operator warms up a boiler and cuts the boiler on line. the
boiler fires to full load and the operator notices the boiler water slowly
, decreasing
◍ 1 cubic foot of natural gas = 1,000 ____.
Answer: btu's
◍ -Chattering= rapid opening and closing of a safety ______.
Answer: valve
◍ - safety valve resets at a pressure slightly lower than the popping pressure-
the difference in pressure is called blowdown or _______.
Answer: blowback
◍ Condensate system has ________ vent on top. Condensate is treated to get
rid of ____________..
Answer: atmospheric, carbonic acid
◍ backwash, brine, rinse, service.
Answer: what is the process of a water softener? what are the four
regeneration steps for sodium zeolite softener?
◍ interlocks.
Answer: what are used between induced drafts fans, forced draft fans, and
combustion or burner equipment in order to avoid boiler combustion
problems?
◍ rupture disc.
Answer: what is fail-safe and ensures a seal-tight system and cannot reclose
itself? what is fail-safe and cannot be reclosed or reset if it malfunctions?
◍ -Functions of a steam separator: Conserves the energy of the steam, prevents
water hammer, protects equipment from impingement, removes water from
______..
Answer: steam
◍ -safety valves rated in pounds of steam per ______.
Answer: hour
◍ Too much excess air results in high heat loss and low boiler ________.
Answer: efficiency
, ◍ -Gas flow control valve opens ______..
Answer: slowly
◍ Phosphates are used to treat a boiler because they turn calcium and
magnesium into a non-adhering sludge that can be blown down _______.
Answer: easily
◍ ejectors.
Answer: how are non-condensables removed from the condenser?
◍ Perfect combustion is theoretical and can only be obtained in a ________..
Answer: laboratory
◍ 3206.2 psi, 705.6.
Answer: supercritical boilers operate above the _____ of the water-steam at
PSIA, and operating temperatures above _____ degrees F
◍ mixture of air and fuelatomization temperaturetime.
Answer: what does MATT stand for?
◍ A firetube boiler has more water per boiler horsepower, more dangerous and
more prone to a boiler explosion because of the high volume of ______.
Answer: water
◍ The fire point is when the fuel will _____ and continue to burn..
Answer: ignite
◍ -Fittings on a low pressure boiler are usually threaded/screw ______..
Answer: fittings
◍ 78.5.
Answer: what is the thermal efficiency % of a boiler with a stack
temperature of 600°F and a furnace of 2800 psi?
◍ -STEAM SEPARATOR DOES NOT ADD HEAT TO THE ______.
Answer: STEAM
◍ one line.
Answer: what type of diagram uses single lines and graphic symbols to
