DC 3rd class sta onary steam engineer license prep|
With complete solu on| RATED A+ | 2026
_________ are necessary for complete combus on
me, temperature, mixture, and atomiza on
if the steam pressure gauge indicates 200 PSIG, the absolute pressure is______
214.7
a boiler is opera ng at 400 PSI, and the safety valve opens at 410 PSI and closes at 398 PSI. The
blowdown is______psi
12
an oil cooler is commonly used with a(n) ________ when opera ng in conjunc on with a turbo-
generator
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
superheated
the economizer on a boiler is used to _______
add heat to the feed water
blowers are normally used with________ boilers
water tube
overhea ng of tubes on a boiler can be caused by________
scale on tubes
carbon dioxide in a condensate return system causes_________
channeling
a ________ pump is a posi ve displacement pump
reciproca ng
,a boiler genera ng 6000 lb of steam/hr produces _______btu/hr
6,000,000
a bo2om blowdown is performed on a boiler to _____
discharge sludge and sediment
water columns are connected to the boiler with a minimum of _______" pipe
1
the minimum size of a water column blowdown valve is_______".
3/4
the maximum size bo2om blowdown valve on a boiler is_________".
2 1/2
a ________ allows condensate to pass through, but stops Steam.
a steam trap
when taking over a shi5, the first thing to do is check the________
water level in each boiler
according to the asme code, a high-pressure boiler having more than 500 square feet of hea ng
surface shall have________
two or more safety valves
the probable cause of an increase in temperature of gases of combus on at the boiler Outlet
is____
dirty hea ng services
boilers in ba2ery equipped with________ must have two main steam stop valves and a free-
flowing drain between them
manhole openings
in order to be sure the gauge glass is indica ng an accurate water level reading, the sta onary
engineer should______
blowdown the gauge glass
a con nuous blowdown line is located___
, in the Steam and water drum well below the nowl
a temperature reading of 80 degrees Celsius is equal to_________°f
176
a chimney temperature of 250 degrees Fahrenheit above steam temperature indicates_______
poor efficiency
a manometer is red in________
inches of water
the boiling point of water will____ with an increase in pressure
be raised
if a lather is not obtained when performing a soap hardness test, the water sample is_______
hard
combus on efficiency can be increased when air is________
preheated
______ dra5 is produced by a fan located between the boiler and the chimney
induced
the overspeed trip on a steam turbine should be tested ______
before pu=ng the steam turbine on-line
a high CO2 reading in the gases of combus on is a sign of____
High combus on efficiency
the purpose of chemically trea ng feedwater is to________
turn scale-forming salts to a non adhering sludge
water in a d ra ng feed water heater is prevented from entering the steam line by a(n) _______.
Loop seal or internal overflow
a steam turbine opera ng at 3600 RPM will trip at_________ rpm
3960
he steam line going to The Blowers is connected to the main ________
With complete solu on| RATED A+ | 2026
_________ are necessary for complete combus on
me, temperature, mixture, and atomiza on
if the steam pressure gauge indicates 200 PSIG, the absolute pressure is______
214.7
a boiler is opera ng at 400 PSI, and the safety valve opens at 410 PSI and closes at 398 PSI. The
blowdown is______psi
12
an oil cooler is commonly used with a(n) ________ when opera ng in conjunc on with a turbo-
generator
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
superheated
the economizer on a boiler is used to _______
add heat to the feed water
blowers are normally used with________ boilers
water tube
overhea ng of tubes on a boiler can be caused by________
scale on tubes
carbon dioxide in a condensate return system causes_________
channeling
a ________ pump is a posi ve displacement pump
reciproca ng
,a boiler genera ng 6000 lb of steam/hr produces _______btu/hr
6,000,000
a bo2om blowdown is performed on a boiler to _____
discharge sludge and sediment
water columns are connected to the boiler with a minimum of _______" pipe
1
the minimum size of a water column blowdown valve is_______".
3/4
the maximum size bo2om blowdown valve on a boiler is_________".
2 1/2
a ________ allows condensate to pass through, but stops Steam.
a steam trap
when taking over a shi5, the first thing to do is check the________
water level in each boiler
according to the asme code, a high-pressure boiler having more than 500 square feet of hea ng
surface shall have________
two or more safety valves
the probable cause of an increase in temperature of gases of combus on at the boiler Outlet
is____
dirty hea ng services
boilers in ba2ery equipped with________ must have two main steam stop valves and a free-
flowing drain between them
manhole openings
in order to be sure the gauge glass is indica ng an accurate water level reading, the sta onary
engineer should______
blowdown the gauge glass
a con nuous blowdown line is located___
, in the Steam and water drum well below the nowl
a temperature reading of 80 degrees Celsius is equal to_________°f
176
a chimney temperature of 250 degrees Fahrenheit above steam temperature indicates_______
poor efficiency
a manometer is red in________
inches of water
the boiling point of water will____ with an increase in pressure
be raised
if a lather is not obtained when performing a soap hardness test, the water sample is_______
hard
combus on efficiency can be increased when air is________
preheated
______ dra5 is produced by a fan located between the boiler and the chimney
induced
the overspeed trip on a steam turbine should be tested ______
before pu=ng the steam turbine on-line
a high CO2 reading in the gases of combus on is a sign of____
High combus on efficiency
the purpose of chemically trea ng feedwater is to________
turn scale-forming salts to a non adhering sludge
water in a d ra ng feed water heater is prevented from entering the steam line by a(n) _______.
Loop seal or internal overflow
a steam turbine opera ng at 3600 RPM will trip at_________ rpm
3960
he steam line going to The Blowers is connected to the main ________
