Testtrackers
1
BOILER OPERATOR/ STATIONARY STEAM
ENGINEER EXAM QUESTIONS AND CORRECT
DETAILED ANSWERS 2025-2026 (VERIFIED
ANSWERS) ||ALREADY GRADED A+||NEWEST
VERSION
what is used to keep SO2 down? ANS: wet and dry scrubbers
a wet scrubber that has been maintained properly has the capability of absorbing ______%
of the SO2 in the flue gas ANS: 90%
Materials of construction of a flue gas scrubber system must be selected to resist what
hostile conditions? ANS: low pH conditions and abrasion
the efficiency of a spray pond or cooling tower is based on? ANS: wet bulb
temperature or relative humidity of the ambient air
when placing an induced draft cooling tower into service, which is the last step performed?
ANS: start the i.d. fans
when operating an induced draft cooling tower, which of the following statements is FALSE
ANS: it is more economical to operate one fan at high speed than two fans at low speed
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2
what condition could be prevented by keeping the pH of water greater than 7? ANS:
corrosion
which chemical is often used to control algae accumulation in cooling towers? ANS:
copper sulfate
(LP) what is the minimum percentage of oxygen that must be present in a confined space
before entering? ANS: 19.5%
(LP) which of the following should you not tag and lock out when a boiler is shut down for
inspection? ANS: top tri cock or boiler vent
what is the first thing that must be done when starting up a brand new boiler? ANS:
boil the boiler out
which of the following is not done during a boiler start up? ANS: fill the boiler to the
NOWL
o
o
Thank You for Choosing Us!
© 2024 TestTrackers o Resources & Updates: [Testtrackers - Stuvia US]
o Customer Support: o Your Success is Our Mission!
[+254707240657]
1
BOILER OPERATOR/ STATIONARY STEAM
ENGINEER EXAM QUESTIONS AND CORRECT
DETAILED ANSWERS 2025-2026 (VERIFIED
ANSWERS) ||ALREADY GRADED A+||NEWEST
VERSION
what is used to keep SO2 down? ANS: wet and dry scrubbers
a wet scrubber that has been maintained properly has the capability of absorbing ______%
of the SO2 in the flue gas ANS: 90%
Materials of construction of a flue gas scrubber system must be selected to resist what
hostile conditions? ANS: low pH conditions and abrasion
the efficiency of a spray pond or cooling tower is based on? ANS: wet bulb
temperature or relative humidity of the ambient air
when placing an induced draft cooling tower into service, which is the last step performed?
ANS: start the i.d. fans
when operating an induced draft cooling tower, which of the following statements is FALSE
ANS: it is more economical to operate one fan at high speed than two fans at low speed
o
o
Thank You for Choosing Us!
© 2024 TestTrackers o Resources & Updates: [Testtrackers - Stuvia US]
o Customer Support: o Your Success is Our Mission!
[+254707240657]
, Testtrackers
2
what condition could be prevented by keeping the pH of water greater than 7? ANS:
corrosion
which chemical is often used to control algae accumulation in cooling towers? ANS:
copper sulfate
(LP) what is the minimum percentage of oxygen that must be present in a confined space
before entering? ANS: 19.5%
(LP) which of the following should you not tag and lock out when a boiler is shut down for
inspection? ANS: top tri cock or boiler vent
what is the first thing that must be done when starting up a brand new boiler? ANS:
boil the boiler out
which of the following is not done during a boiler start up? ANS: fill the boiler to the
NOWL
o
o
Thank You for Choosing Us!
© 2024 TestTrackers o Resources & Updates: [Testtrackers - Stuvia US]
o Customer Support: o Your Success is Our Mission!
[+254707240657]
