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First Class Steam License Actual Exam Newest 2026-
2027 Complete 100 Questions And Correct Detailed
Answers| Already Graded A+
What is the purpose of the steam strainer? - ANSWER-To keep
rust and debris from entering the inlet side of a steam trap.
Which valve cannot be used as a main steam valve?
A. Globe
B. Gate
C. OS&Y - ANSWER-Globe.
The 2 types of steam traps are: - ANSWER-Return and Non-
Return.
The 4 kinds of steam traps: - ANSWER-1. Thermostatic
2. Float Thermostatic.
3. Inverted Bucket.
4. Thermodynamic.
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Name 2 tests for steam trap operation. - ANSWER-1. Strap on
thermometers.
2. Temperature crayons.
What does it mean when a pump is steam bound? - ANSWER-
The water that is was pumping has become too hot and flashed
into steam. This is usually caused by a "blowing" steam trap.
Water Hammer - ANSWER-The noise which is a result of high-
velocity steam passing over pockets of water which have
collected in the piping
Start up load - ANSWER-The condensate that is formed in
bringing the piping and radiators up to steam temperature.
Priming - ANSWER-the carrying of small particles of water into
the steam piping. It may be caused by impurities in the water,
which foams up as it boils, or simply too high a water level.
Foaming - ANSWER-Bubbles or froth that is a build-up on the
surface of the boiler water. it is caused by high concentration of
any solids in the boiler water.
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Bullheading a Tee - ANSWER-The practice of piping the steam
supply into the bull of the tee and allowing it to pass through to
the runs of the tee. This will cause the steam to crash into the
back of the tee and cause water hammer and disrupt the flow of
the steam. NEVER BULLHEAD A TEE !!!
A line desuperheater is used in conjunction with a ___. -
ANSWER-pressure-reducing station
Some plants are equipped with a ___ instead of a blowdown
tank. - ANSWER-blowdown separator
If steam has a quality of ___%, it is 98% vapor and contains 2%
water. - ANSWER-98
In a heat recovery system, the ___ regulates the flow of makeup
water to the flash economizer. - ANSWER-proportioning valve
A 10 degree F rise in feed-water temperature produces
approximately ___% savings in fuel - ANSWER-1%
A throttling calorimeter is used to directly measure the ___ -
ANSWER-moisture content in steam
First Class Steam License Actual Exam Newest 2026-
2027 Complete 100 Questions And Correct Detailed
Answers| Already Graded A+
What is the purpose of the steam strainer? - ANSWER-To keep
rust and debris from entering the inlet side of a steam trap.
Which valve cannot be used as a main steam valve?
A. Globe
B. Gate
C. OS&Y - ANSWER-Globe.
The 2 types of steam traps are: - ANSWER-Return and Non-
Return.
The 4 kinds of steam traps: - ANSWER-1. Thermostatic
2. Float Thermostatic.
3. Inverted Bucket.
4. Thermodynamic.
,2|Page
Name 2 tests for steam trap operation. - ANSWER-1. Strap on
thermometers.
2. Temperature crayons.
What does it mean when a pump is steam bound? - ANSWER-
The water that is was pumping has become too hot and flashed
into steam. This is usually caused by a "blowing" steam trap.
Water Hammer - ANSWER-The noise which is a result of high-
velocity steam passing over pockets of water which have
collected in the piping
Start up load - ANSWER-The condensate that is formed in
bringing the piping and radiators up to steam temperature.
Priming - ANSWER-the carrying of small particles of water into
the steam piping. It may be caused by impurities in the water,
which foams up as it boils, or simply too high a water level.
Foaming - ANSWER-Bubbles or froth that is a build-up on the
surface of the boiler water. it is caused by high concentration of
any solids in the boiler water.
, 3|Page
Bullheading a Tee - ANSWER-The practice of piping the steam
supply into the bull of the tee and allowing it to pass through to
the runs of the tee. This will cause the steam to crash into the
back of the tee and cause water hammer and disrupt the flow of
the steam. NEVER BULLHEAD A TEE !!!
A line desuperheater is used in conjunction with a ___. -
ANSWER-pressure-reducing station
Some plants are equipped with a ___ instead of a blowdown
tank. - ANSWER-blowdown separator
If steam has a quality of ___%, it is 98% vapor and contains 2%
water. - ANSWER-98
In a heat recovery system, the ___ regulates the flow of makeup
water to the flash economizer. - ANSWER-proportioning valve
A 10 degree F rise in feed-water temperature produces
approximately ___% savings in fuel - ANSWER-1%
A throttling calorimeter is used to directly measure the ___ -
ANSWER-moisture content in steam
