3RD CLASS STATIONARY STEAM ENGINEER LICENSE PREP
EXAM QUESTIONS AND ANSWERS
_________ 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
the minimum size of a water column blowdown valve is_______". - CORRECT ANSWER✅✅✅3/4
the maximum size bottom blowdown valve on a boiler is_________". - CORRECT ANSWER✅✅✅2
1/2
a ________ allows condensate to pass through, but stops Steam. - CORRECT ANSWER✅✅✅a steam
trap
when taking over a shift, the first thing to do is check the________ - CORRECT ANSWER✅✅✅water
level in each boiler
according to the asme code, a high-pressure boiler having more than 500 square feet of heating surface
shall have________ - CORRECT ANSWER✅✅✅two or more safety valves
the probable cause of an increase in temperature of gases of combustion at the boiler Outlet is____ -
CORRECT ANSWER✅✅✅dirty heating services
boilers in battery equipped with________ must have two main steam stop valves and a free-flowing
drain between them - CORRECT ANSWER✅✅✅manhole openings
in order to be sure the gauge glass is indicating an accurate water level reading, the stationary engineer
should______ - CORRECT ANSWER✅✅✅blowdown the gauge glass
a continuous blowdown line is located___ - CORRECT ANSWER✅✅✅in the Steam and water drum
well below the nowl
, a temperature reading of 80 degrees Celsius is equal to_________°f - CORRECT ANSWER✅✅✅176
a chimney temperature of 250 degrees Fahrenheit above steam temperature indicates_______ -
CORRECT ANSWER✅✅✅poor efficiency
a manometer is red in________ - CORRECT ANSWER✅✅✅inches of water
the boiling point of water will____ with an increase in pressure - CORRECT ANSWER✅✅✅be raised
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
EXAM QUESTIONS AND ANSWERS
_________ 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
the minimum size of a water column blowdown valve is_______". - CORRECT ANSWER✅✅✅3/4
the maximum size bottom blowdown valve on a boiler is_________". - CORRECT ANSWER✅✅✅2
1/2
a ________ allows condensate to pass through, but stops Steam. - CORRECT ANSWER✅✅✅a steam
trap
when taking over a shift, the first thing to do is check the________ - CORRECT ANSWER✅✅✅water
level in each boiler
according to the asme code, a high-pressure boiler having more than 500 square feet of heating surface
shall have________ - CORRECT ANSWER✅✅✅two or more safety valves
the probable cause of an increase in temperature of gases of combustion at the boiler Outlet is____ -
CORRECT ANSWER✅✅✅dirty heating services
boilers in battery equipped with________ must have two main steam stop valves and a free-flowing
drain between them - CORRECT ANSWER✅✅✅manhole openings
in order to be sure the gauge glass is indicating an accurate water level reading, the stationary engineer
should______ - CORRECT ANSWER✅✅✅blowdown the gauge glass
a continuous blowdown line is located___ - CORRECT ANSWER✅✅✅in the Steam and water drum
well below the nowl
, a temperature reading of 80 degrees Celsius is equal to_________°f - CORRECT ANSWER✅✅✅176
a chimney temperature of 250 degrees Fahrenheit above steam temperature indicates_______ -
CORRECT ANSWER✅✅✅poor efficiency
a manometer is red in________ - CORRECT ANSWER✅✅✅inches of water
the boiling point of water will____ with an increase in pressure - CORRECT ANSWER✅✅✅be raised
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
