3rd Class Stationary Steam Engineer License Exam
Newest 2026 Questions and Correct Detailed Answers
Already Graded A+
if a lather is not obtained when performing a soap hardness test, the water
sample is_______ - CORRECT ANSWER-hard
combustion efficiency can be increased when air is________ - CORRECT
ANSWER-preheated
______ draft is produced by a fan located between the boiler and the chimney -
CORRECT ANSWER-induced
the overspeed trip on a steam turbine should be tested ______ - CORRECT
ANSWER-before putting the steam turbine on-line
a high CO2 reading in the gases of combustion is a sign of____ - CORRECT
ANSWER-High combustion efficiency
the purpose of chemically treating feedwater is to________ - CORRECT
ANSWER-turn scale-forming salts to a non adhering sludge
,water in a d rating feed water heater is prevented from entering the steam line by
a(n) _______. - CORRECT ANSWER-Loop seal or internal overflow
a steam turbine operating at 3600 RPM will trip at_________ rpm - CORRECT
ANSWER-3960
he steam line going to The Blowers is connected to the main ________ -
CORRECT ANSWER-steam drum
before using blowers on a boiler,________ - CORRECT ANSWER-drain set
blower lines
an accumulation of snow on the Fireside of a boiler tubes________ - CORRECT
ANSWER-decreases boiler efficiency
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 -
CORRECT ANSWER-under
the range of a pressure gauge should be twice the safety valve setting, but not
less than______ time (s) the safety valve setting - CORRECT ANSWER-1 1/2
,_________ are necessary for complete combustion - CORRECT ANSWER-time,
temperature, mixture, and atomization
if the steam pressure gauge indicates 200 PSIG, the absolute pressure is______ -
CORRECT ANSWER-214.7
a boiler is operating at 400 PSI, and the safety valve opens at 410 PSI and closes at
398 PSI. The blowdown is______psi - CORRECT ANSWER-12
an oil cooler is commonly used with a(n) ________ when operating in conjunction
with a turbo-generator - CORRECT ANSWER-steam turbine
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 -
CORRECT ANSWER-superheated
the economizer on a boiler is used to _______ - CORRECT ANSWER-add heat
to the feed water
, blowers are normally used with________ boilers - CORRECT ANSWER-water
tube
overheating of tubes on a boiler can be caused by________ - CORRECT
ANSWER-scale on tubes
carbon dioxide in a condensate return system causes_________ - CORRECT
ANSWER-channeling
a ________ pump is a positive displacement pump - CORRECT ANSWER-
reciprocating
a boiler generating 6000 lb of steam/hr produces _______btu/hr - CORRECT
ANSWER-6,000,000
a bottom blowdown is performed on a boiler to _____ - CORRECT ANSWER-
discharge sludge and sediment
water columns are connected to the boiler with a minimum of _______" pipe -
CORRECT ANSWER-1
Newest 2026 Questions and Correct Detailed Answers
Already Graded A+
if a lather is not obtained when performing a soap hardness test, the water
sample is_______ - CORRECT ANSWER-hard
combustion efficiency can be increased when air is________ - CORRECT
ANSWER-preheated
______ draft is produced by a fan located between the boiler and the chimney -
CORRECT ANSWER-induced
the overspeed trip on a steam turbine should be tested ______ - CORRECT
ANSWER-before putting the steam turbine on-line
a high CO2 reading in the gases of combustion is a sign of____ - CORRECT
ANSWER-High combustion efficiency
the purpose of chemically treating feedwater is to________ - CORRECT
ANSWER-turn scale-forming salts to a non adhering sludge
,water in a d rating feed water heater is prevented from entering the steam line by
a(n) _______. - CORRECT ANSWER-Loop seal or internal overflow
a steam turbine operating at 3600 RPM will trip at_________ rpm - CORRECT
ANSWER-3960
he steam line going to The Blowers is connected to the main ________ -
CORRECT ANSWER-steam drum
before using blowers on a boiler,________ - CORRECT ANSWER-drain set
blower lines
an accumulation of snow on the Fireside of a boiler tubes________ - CORRECT
ANSWER-decreases boiler efficiency
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 -
CORRECT ANSWER-under
the range of a pressure gauge should be twice the safety valve setting, but not
less than______ time (s) the safety valve setting - CORRECT ANSWER-1 1/2
,_________ are necessary for complete combustion - CORRECT ANSWER-time,
temperature, mixture, and atomization
if the steam pressure gauge indicates 200 PSIG, the absolute pressure is______ -
CORRECT ANSWER-214.7
a boiler is operating at 400 PSI, and the safety valve opens at 410 PSI and closes at
398 PSI. The blowdown is______psi - CORRECT ANSWER-12
an oil cooler is commonly used with a(n) ________ when operating in conjunction
with a turbo-generator - CORRECT ANSWER-steam turbine
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 -
CORRECT ANSWER-superheated
the economizer on a boiler is used to _______ - CORRECT ANSWER-add heat
to the feed water
, blowers are normally used with________ boilers - CORRECT ANSWER-water
tube
overheating of tubes on a boiler can be caused by________ - CORRECT
ANSWER-scale on tubes
carbon dioxide in a condensate return system causes_________ - CORRECT
ANSWER-channeling
a ________ pump is a positive displacement pump - CORRECT ANSWER-
reciprocating
a boiler generating 6000 lb of steam/hr produces _______btu/hr - CORRECT
ANSWER-6,000,000
a bottom blowdown is performed on a boiler to _____ - CORRECT ANSWER-
discharge sludge and sediment
water columns are connected to the boiler with a minimum of _______" pipe -
CORRECT ANSWER-1
