3RD CLASS STATIONARY STEAM ENGINEER
ACTUAL EXAM PAPER 2026 FULL
QUESTIONS AND CORRECT ANSWERS
GRADED A+
●● 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
ACTUAL EXAM PAPER 2026 FULL
QUESTIONS AND CORRECT ANSWERS
GRADED A+
●● 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
