3rd class stationary steam engineer license prep CORRECT 100%
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Course
DC Boiler
Institution
DC Boiler
if the steam pressure gauge indicates 200 PSIG, the absolute pressure is______ - 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 - ANSWER 12
an oil cooler is commonly used with a(n) ________ when operating in...
3rd class stationary steam engineer license
prep CORRECT 100%
_________ are necessary for complete combustion - ANSWER time, temperature, mixture, and
atomization
if the steam pressure gauge indicates 200 PSIG, the absolute pressure is______ - 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 - ANSWER 12
an oil cooler is commonly used with a(n) ________ when operating in conjunction with a turbo-
generator - 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 - ANSWER superheated
the economizer on a boiler is used to _______ - ANSWER add heat to the feed water
blowers are normally used with________ boilers - ANSWER water tube
overheating of tubes on a boiler can be caused by________ - ANSWER scale on tubes
carbon dioxide in a condensate return system causes_________ - ANSWER channeling
a ________ pump is a positive displacement pump - ANSWER reciprocating
a boiler generating 6000 lb of steam/hr produces _______btu/hr - ANSWER 6,000,000
, a bottom blowdown is performed on a boiler to _____ - ANSWER discharge sludge and sediment
water columns are connected to the boiler with a minimum of _______" pipe - ANSWER 1
the minimum size of a water column blowdown valve is_______". - ANSWER 3/4
the maximum size bottom blowdown valve on a boiler is_________". - ANSWER 2 1/2
a ________ allows condensate to pass through, but stops Steam. - ANSWER a steam trap
when taking over a shift, the first thing to do is check the________ - 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________ - ANSWER two or more safety valves
the probable cause of an increase in temperature of gases of combustion at the boiler Outlet is____ -
ANSWER dirty heating services
boilers in battery equipped with________ must have two main steam stop valves and a free-flowing
drain between them - ANSWER manhole openings
in order to be sure the gauge glass is indicating an accurate water level reading, the stationary engineer
should______ - ANSWER blowdown the gauge glass
a continuous blowdown line is located___ - ANSWER in the Steam and water drum well below the nowl
a temperature reading of 80 degrees Celsius is equal to_________°f - ANSWER 176
a chimney temperature of 250 degrees Fahrenheit above steam temperature indicates_______ -
ANSWER poor efficiency
, a manometer is red in________ - ANSWER inches of water
the boiling point of water will____ with an increase in pressure - ANSWER be raised
if a lather is not obtained when performing a soap hardness test, the water sample is_______ - ANSWER
hard
combustion efficiency can be increased when air is________ - ANSWER preheated
______ draft is produced by a fan located between the boiler and the chimney - ANSWER induced
the overspeed trip on a steam turbine should be tested ______ - ANSWER before putting the steam
turbine on-line
a high CO2 reading in the gases of combustion is a sign of____ - ANSWER High combustion efficiency
the purpose of chemically treating feedwater is to________ - 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) _______. -
ANSWER Loop seal or internal overflow
a steam turbine operating at 3600 RPM will trip at_________ rpm - ANSWER 3960
he steam line going to The Blowers is connected to the main ________ - ANSWER steam drum
before using blowers on a boiler,________ - ANSWER drain set blower lines
an accumulation of snow on the Fireside of a boiler tubes________ - ANSWER decreases boiler efficiency
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