Boiler operator/ stationary steam
engineer exam
what is used to keep SO2 down? ✔✔ correct answer wet and dry scrubbers
a wet scrubber that has been maintained properly has the capability of absorbing ______% of the
SO2 in the flue gas ✔✔ correct answer 90%
Materials of construction of a flue gas scrubber system must be selected to resist what hostile
conditions? ✔✔ correct answer low pH conditions and abrasion
the efficiency of a spray pond or cooling tower is based on? ✔✔ correct answer 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? ✔✔
correct answer start the i.d. fans
when operating an induced draft cooling tower, which of the following statements is FALSE ✔✔
correct answer it is more economical to operate one fan at high speed than two fans at low speed
what condition could be prevented by keeping the pH of water greater than 7? ✔✔ correct answer
corrosion
which chemical is often used to control algae accumulation in cooling towers? ✔✔ correct answer
copper sulfate
(LP) what is the minimum percentage of oxygen that must be present in a confined space before
entering? ✔✔ correct answer 19.5%
(LP) which of the following should you not tag and lock out when a boiler is shut down for
inspection? ✔✔ correct answer top tri cock or boiler vent
what is the first thing that must be done when starting up a brand new boiler? ✔✔ correct answer
boil the boiler out
, Boiler operator/ stationary steam
engineer exam
which of the following is not done during a boiler start up? ✔✔ correct answer fill the boiler to the
NOWL
when starting a fire in a coal_fired boiler with chain grates or traveling grates, how much coal should
be on the grates? ✔✔ correct answer 3-4 inches
when should a non-return valve be opened when putting a boiler on line? ✔✔ correct answer when
the boiler pressure builds to 10 to 25 pose below the header pressure
if a steam oiler is being taken out of service, what step should be taken first? ✔✔ correct answer
operate the sootblowers
(LP) when taking a boiler off-line what is the first step? ✔✔ correct answer secure the fire
what is the last step to be performed when shutting down a boiler? ✔✔ correct answer close the
feedwater supply valve
when taking a boiler out of service, what is one thing you do not do? ✔✔ correct answer close the
vent
how long may the operator be away from the boiler ✔✔ correct answer the time it takes to go from
1/2 sight glass of water to no water showing
how long does it usually take for the boiler water level to go from half a glass to no water showing?
✔✔ correct answer 2-8 min
how often should the flame scanner be tested? ✔✔ correct answer weekly
(LP) when testing a safety valve manually on a low-pressure boiler, how long do you hold it open?
✔✔ correct answer 5-10 seconds
with a tubular gauge glass, how do you warm up the glass ✔✔ correct answer open the drain valve
and crack open the steam valve
engineer exam
what is used to keep SO2 down? ✔✔ correct answer wet and dry scrubbers
a wet scrubber that has been maintained properly has the capability of absorbing ______% of the
SO2 in the flue gas ✔✔ correct answer 90%
Materials of construction of a flue gas scrubber system must be selected to resist what hostile
conditions? ✔✔ correct answer low pH conditions and abrasion
the efficiency of a spray pond or cooling tower is based on? ✔✔ correct answer 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? ✔✔
correct answer start the i.d. fans
when operating an induced draft cooling tower, which of the following statements is FALSE ✔✔
correct answer it is more economical to operate one fan at high speed than two fans at low speed
what condition could be prevented by keeping the pH of water greater than 7? ✔✔ correct answer
corrosion
which chemical is often used to control algae accumulation in cooling towers? ✔✔ correct answer
copper sulfate
(LP) what is the minimum percentage of oxygen that must be present in a confined space before
entering? ✔✔ correct answer 19.5%
(LP) which of the following should you not tag and lock out when a boiler is shut down for
inspection? ✔✔ correct answer top tri cock or boiler vent
what is the first thing that must be done when starting up a brand new boiler? ✔✔ correct answer
boil the boiler out
, Boiler operator/ stationary steam
engineer exam
which of the following is not done during a boiler start up? ✔✔ correct answer fill the boiler to the
NOWL
when starting a fire in a coal_fired boiler with chain grates or traveling grates, how much coal should
be on the grates? ✔✔ correct answer 3-4 inches
when should a non-return valve be opened when putting a boiler on line? ✔✔ correct answer when
the boiler pressure builds to 10 to 25 pose below the header pressure
if a steam oiler is being taken out of service, what step should be taken first? ✔✔ correct answer
operate the sootblowers
(LP) when taking a boiler off-line what is the first step? ✔✔ correct answer secure the fire
what is the last step to be performed when shutting down a boiler? ✔✔ correct answer close the
feedwater supply valve
when taking a boiler out of service, what is one thing you do not do? ✔✔ correct answer close the
vent
how long may the operator be away from the boiler ✔✔ correct answer the time it takes to go from
1/2 sight glass of water to no water showing
how long does it usually take for the boiler water level to go from half a glass to no water showing?
✔✔ correct answer 2-8 min
how often should the flame scanner be tested? ✔✔ correct answer weekly
(LP) when testing a safety valve manually on a low-pressure boiler, how long do you hold it open?
✔✔ correct answer 5-10 seconds
with a tubular gauge glass, how do you warm up the glass ✔✔ correct answer open the drain valve
and crack open the steam valve
