3rd class stationary steam
engineer license prep
Exam Study Guide – Practice
Questions with Answers.
GRADED A+. Latest 2026/2027
Update.
_________ are necessary for complete combustion - Ans✔✔-time,
temperature, mixture, and atomization
if the steam pressure gauge indicates 200 PSIG, the absolute pressure is______
- Ans✔✔-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 - Ans✔✔-12
an oil cooler is commonly used with a(n) ________ when operating in
conjunction with a turbo-generator - Ans✔✔-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
- Ans✔✔-superheated
the economizer on a boiler is used to _______ - Ans✔✔-add heat to the feed
water
blowers are normally used with________ boilers - Ans✔✔-water tube
overheating of tubes on a boiler can be caused by________ - Ans✔✔-scale on
tubes
carbon dioxide in a condensate return system causes_________ - Ans✔✔-
channeling
a ________ pump is a positive displacement pump - Ans✔✔-reciprocating
a boiler generating 6000 lb of steam/hr produces _______btu/hr - Ans✔✔-
6,000,000
a bottom blowdown is performed on a boiler to _____ - Ans✔✔-discharge
sludge and sediment
water columns are connected to the boiler with a minimum of _______" pipe -
Ans✔✔-1
the minimum size of a water column blowdown valve is_______". - Ans✔✔-3/4
, the maximum size bottom blowdown valve on a boiler is_________". - Ans✔✔-
2 1/2
a ________ allows condensate to pass through, but stops Steam. - Ans✔✔-a
steam trap
when taking over a shift, the first thing to do is check the________ - Ans✔✔-
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________ - Ans✔✔-two or more safety
valves
the probable cause of an increase in temperature of gases of combustion at the
boiler Outlet is____ - Ans✔✔-dirty heating services
boilers in battery equipped with________ must have two main steam stop
valves and a free-flowing drain between them - Ans✔✔-manhole openings
in order to be sure the gauge glass is indicating an accurate water level reading,
the stationary engineer should______ - Ans✔✔-blowdown the gauge glass
a continuous blowdown line is located___ - Ans✔✔-in the Steam and water
drum well below the nowl
engineer license prep
Exam Study Guide – Practice
Questions with Answers.
GRADED A+. Latest 2026/2027
Update.
_________ are necessary for complete combustion - Ans✔✔-time,
temperature, mixture, and atomization
if the steam pressure gauge indicates 200 PSIG, the absolute pressure is______
- Ans✔✔-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 - Ans✔✔-12
an oil cooler is commonly used with a(n) ________ when operating in
conjunction with a turbo-generator - Ans✔✔-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
- Ans✔✔-superheated
the economizer on a boiler is used to _______ - Ans✔✔-add heat to the feed
water
blowers are normally used with________ boilers - Ans✔✔-water tube
overheating of tubes on a boiler can be caused by________ - Ans✔✔-scale on
tubes
carbon dioxide in a condensate return system causes_________ - Ans✔✔-
channeling
a ________ pump is a positive displacement pump - Ans✔✔-reciprocating
a boiler generating 6000 lb of steam/hr produces _______btu/hr - Ans✔✔-
6,000,000
a bottom blowdown is performed on a boiler to _____ - Ans✔✔-discharge
sludge and sediment
water columns are connected to the boiler with a minimum of _______" pipe -
Ans✔✔-1
the minimum size of a water column blowdown valve is_______". - Ans✔✔-3/4
, the maximum size bottom blowdown valve on a boiler is_________". - Ans✔✔-
2 1/2
a ________ allows condensate to pass through, but stops Steam. - Ans✔✔-a
steam trap
when taking over a shift, the first thing to do is check the________ - Ans✔✔-
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________ - Ans✔✔-two or more safety
valves
the probable cause of an increase in temperature of gases of combustion at the
boiler Outlet is____ - Ans✔✔-dirty heating services
boilers in battery equipped with________ must have two main steam stop
valves and a free-flowing drain between them - Ans✔✔-manhole openings
in order to be sure the gauge glass is indicating an accurate water level reading,
the stationary engineer should______ - Ans✔✔-blowdown the gauge glass
a continuous blowdown line is located___ - Ans✔✔-in the Steam and water
drum well below the nowl
