3rd Class Stationary Steam Engineer License Exam Prep
2025/2026 | Study Guide with Practice Questions & Answers
time, temperature, mixture, and atomization correct answers _________ are necessary
for complete combustion
214.7 correct answers if the steam pressure gauge indicates 200 PSIG, the absolute
pressure is______
12 correct answers a boiler is operating at 400 PSI, and the safety valve opens at 410
PSI and closes at 398 PSI. The blowdown is______psi
steam turbine correct answers an oil cooler is commonly used with a(n) ________ when
operating in conjunction with a turbo-generator
superheated correct answers a boiler is producing 40,000lb of steam/hr at a pressure of
100 PSI and a steam temperature of 500 degrees Fahrenheit. The steam produced is
_______ steam
add heat to the feed water correct answers the economizer on a boiler is used to
_______
water tube correct answers blowers are normally used with________ boilers
scale on tubes correct answers overheating of tubes on a boiler can be caused
by________
channeling correct answers carbon dioxide in a condensate return system
causes_________
reciprocating correct answers a ________ pump is a positive displacement pump
6,000,000 correct answers a boiler generating 6000 lb of steam/hr produces
_______btu/hr
discharge sludge and sediment correct answers a bottom blowdown is performed on a
boiler to _____
1 correct answers water columns are connected to the boiler with a minimum of
_______" pipe
,3/4 correct answers the minimum size of a water column blowdown valve is_______".
2 1/2 correct answers the maximum size bottom blowdown valve on a boiler
is_________".
a steam trap correct answers a ________ allows condensate to pass through, but stops
Steam.
water level in each boiler correct answers when taking over a shift, the first thing to do is
check the________
two or more safety valves correct answers according to the asme code, a high-pressure
boiler having more than 500 square feet of heating surface shall have________
dirty heating services correct answers the probable cause of an increase in temperature
of gases of combustion at the boiler Outlet is____
manhole openings correct answers boilers in battery equipped with________ must have
two main steam stop valves and a free-flowing drain between them
blowdown the gauge glass correct answers in order to be sure the gauge glass is
indicating an accurate water level reading, the stationary engineer should______
in the Steam and water drum well below the nowl correct answers a continuous
blowdown line is located___
176 correct answers a temperature reading of 80 degrees Celsius is equal
to_________°f
poor efficiency correct answers a chimney temperature of 250 degrees Fahrenheit
above steam temperature indicates_______
inches of water correct answers a manometer is red in________
be raised correct answers the boiling point of water will____ with an increase in
pressure
hard correct answers if a lather is not obtained when performing a soap hardness test,
the water sample is_______
preheated correct answers combustion efficiency can be increased when air
is________
induced correct answers ______ draft is produced by a fan located between the boiler
and the chimney
, before putting the steam turbine on-line correct answers the overspeed trip on a steam
turbine should be tested ______
High combustion efficiency correct answers a high CO2 reading in the gases of
combustion is a sign of____
turn scale-forming salts to a non adhering sludge correct answers the purpose of
chemically treating feedwater is to________
Loop seal or internal overflow correct answers water in a d rating feed water heater is
prevented from entering the steam line by a(n) _______.
3960 correct answers a steam turbine operating at 3600 RPM will trip at_________ rpm
steam drum correct answers he steam line going to The Blowers is connected to the
main ________
drain set blower lines correct answers before using blowers on a boiler,________
decreases boiler efficiency correct answers an accumulation of snow on the Fireside of
a boiler tubes________
under correct answers a globe valve installed in the feed water line between the feed
water pump and boiler has a pressure from the feed water pump_________ the valve
disc
1 1/2 correct answers the range of a pressure gauge should be twice the safety valve
setting, but not less than______ time (s) the safety valve setting
air- or water-driven turbines correct answers hard scale formed on the inside of tubes is
best removed by________
secure fires correct answers to correct a low water condition,_____
establish steam flow correct answers desuperheater drain is used to_______
there is a broken baffle correct answers a sudden rise in chimney temperature with no
increase in load indicates______
100,000 btu/therm correct answers the btu content of natural gas is_____
higher than correct answers the safety valve setting on the Steam and water drum is
________ a superheater safety valve
18750 BTU / lb correct answers the btu content of number 6 fuel oil is approximately
2025/2026 | Study Guide with Practice Questions & Answers
time, temperature, mixture, and atomization correct answers _________ are necessary
for complete combustion
214.7 correct answers if the steam pressure gauge indicates 200 PSIG, the absolute
pressure is______
12 correct answers a boiler is operating at 400 PSI, and the safety valve opens at 410
PSI and closes at 398 PSI. The blowdown is______psi
steam turbine correct answers an oil cooler is commonly used with a(n) ________ when
operating in conjunction with a turbo-generator
superheated correct answers a boiler is producing 40,000lb of steam/hr at a pressure of
100 PSI and a steam temperature of 500 degrees Fahrenheit. The steam produced is
_______ steam
add heat to the feed water correct answers the economizer on a boiler is used to
_______
water tube correct answers blowers are normally used with________ boilers
scale on tubes correct answers overheating of tubes on a boiler can be caused
by________
channeling correct answers carbon dioxide in a condensate return system
causes_________
reciprocating correct answers a ________ pump is a positive displacement pump
6,000,000 correct answers a boiler generating 6000 lb of steam/hr produces
_______btu/hr
discharge sludge and sediment correct answers a bottom blowdown is performed on a
boiler to _____
1 correct answers water columns are connected to the boiler with a minimum of
_______" pipe
,3/4 correct answers the minimum size of a water column blowdown valve is_______".
2 1/2 correct answers the maximum size bottom blowdown valve on a boiler
is_________".
a steam trap correct answers a ________ allows condensate to pass through, but stops
Steam.
water level in each boiler correct answers when taking over a shift, the first thing to do is
check the________
two or more safety valves correct answers according to the asme code, a high-pressure
boiler having more than 500 square feet of heating surface shall have________
dirty heating services correct answers the probable cause of an increase in temperature
of gases of combustion at the boiler Outlet is____
manhole openings correct answers boilers in battery equipped with________ must have
two main steam stop valves and a free-flowing drain between them
blowdown the gauge glass correct answers in order to be sure the gauge glass is
indicating an accurate water level reading, the stationary engineer should______
in the Steam and water drum well below the nowl correct answers a continuous
blowdown line is located___
176 correct answers a temperature reading of 80 degrees Celsius is equal
to_________°f
poor efficiency correct answers a chimney temperature of 250 degrees Fahrenheit
above steam temperature indicates_______
inches of water correct answers a manometer is red in________
be raised correct answers the boiling point of water will____ with an increase in
pressure
hard correct answers if a lather is not obtained when performing a soap hardness test,
the water sample is_______
preheated correct answers combustion efficiency can be increased when air
is________
induced correct answers ______ draft is produced by a fan located between the boiler
and the chimney
, before putting the steam turbine on-line correct answers the overspeed trip on a steam
turbine should be tested ______
High combustion efficiency correct answers a high CO2 reading in the gases of
combustion is a sign of____
turn scale-forming salts to a non adhering sludge correct answers the purpose of
chemically treating feedwater is to________
Loop seal or internal overflow correct answers water in a d rating feed water heater is
prevented from entering the steam line by a(n) _______.
3960 correct answers a steam turbine operating at 3600 RPM will trip at_________ rpm
steam drum correct answers he steam line going to The Blowers is connected to the
main ________
drain set blower lines correct answers before using blowers on a boiler,________
decreases boiler efficiency correct answers an accumulation of snow on the Fireside of
a boiler tubes________
under correct answers a globe valve installed in the feed water line between the feed
water pump and boiler has a pressure from the feed water pump_________ the valve
disc
1 1/2 correct answers the range of a pressure gauge should be twice the safety valve
setting, but not less than______ time (s) the safety valve setting
air- or water-driven turbines correct answers hard scale formed on the inside of tubes is
best removed by________
secure fires correct answers to correct a low water condition,_____
establish steam flow correct answers desuperheater drain is used to_______
there is a broken baffle correct answers a sudden rise in chimney temperature with no
increase in load indicates______
100,000 btu/therm correct answers the btu content of natural gas is_____
higher than correct answers the safety valve setting on the Steam and water drum is
________ a superheater safety valve
18750 BTU / lb correct answers the btu content of number 6 fuel oil is approximately
