1|Page
Ohio Stationary Steam Engineer
Exam |Newest Complete Questions
And Correct Answers
If a closed feedwater heater is functioning properly, what should the temp of the
feedwater as it exits the heater - correct-answer -2-5 degrees below the temp of
the steam supplied to the heater
When starting a fire in a coal-fired boiler with chain grates, how much coal should
be on the grates? - correct-answer -3-4 inches
When must your boilers operators license be renewed? - correct-answer -not later
than the expiration date on the license
What is the maximum recommended concentration of calcium chloride in the
boiler if the boiler feedwater normally averages 6 ppm? - correct-answer -60 ppm
(10x's)
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What is the pressure on a low pressure gas burner? - correct-answer -0 psi
When testing a safety valve manually on a low-pressure boiler, how long do you
hold it open? - correct-answer -5-10 seconds
Where does the water leave a blowdown tank? - correct-answer -the bottom
Which fan blade design is best for preventing corrosion due to flyash particles
entrained in the flue gas flow? - correct-answer -radial straight
Which chemical is often used to control algae accumulation in cooling towers? -
correct-answer -copper sulfate
Where must your boiler operators license be kept? - correct-answer -in a
conspicuous place in the boiler or turbine room
When no boiler water analysis is made, what is the recommended frequency of
boiler blowdown per ASME code - correct-answer -every 24 hours
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If scale has accumulated inside tubes of a watertube boiler, it is best removed by: -
correct-answer -an air-driven turbine tube cleaner
Which of the following combinations are needed to assure complete combustion
of the fuel in a boiler furnace?
-CO2,O2,CO, and excess air
-Mixture,atomization,time, and temp
-time, tmep, and O2
-feedwater,fuel, steam, and draft - correct-answer -mixture,atomization, time, and
temp
What is heated in an economizer - correct-answer -feedwater
If the water in a boiler is found to be dangerously low, what action should be
taken? - correct-answer -secure fires and manually isolate the feedwater
A flame scanner containing a lead sulfide cell is sensitive to - correct-answer -
Infrared radiation
, 4|Page
When may a bottom blow down line be as small as 3/4"? - correct-answer -if the
boiler has fewer than 100 sqft of heating surface
A sudden increase in the temp of the flue gases entering the stack from the
breeching would likely indicate: - correct-answer -a broken flue gas baffle
What is a superheater vent used for? - correct-answer -establish flow through the
superheater
Which of the following will help prevent furnace explosion?
-Ensuring a safe boiler water level at all times
-Setting the vaporstat to the highest allowable pressure setting
-Maintaining safety valves in good condition
-Purging the furnace after flame failure - correct-answer -Purging the furnace
after flame failure
Boilers laid up dry, have what material placed inside to absorb moisture? - correct-
answer -Quicklime or silica gel
Ohio Stationary Steam Engineer
Exam |Newest Complete Questions
And Correct Answers
If a closed feedwater heater is functioning properly, what should the temp of the
feedwater as it exits the heater - correct-answer -2-5 degrees below the temp of
the steam supplied to the heater
When starting a fire in a coal-fired boiler with chain grates, how much coal should
be on the grates? - correct-answer -3-4 inches
When must your boilers operators license be renewed? - correct-answer -not later
than the expiration date on the license
What is the maximum recommended concentration of calcium chloride in the
boiler if the boiler feedwater normally averages 6 ppm? - correct-answer -60 ppm
(10x's)
,2|Page
What is the pressure on a low pressure gas burner? - correct-answer -0 psi
When testing a safety valve manually on a low-pressure boiler, how long do you
hold it open? - correct-answer -5-10 seconds
Where does the water leave a blowdown tank? - correct-answer -the bottom
Which fan blade design is best for preventing corrosion due to flyash particles
entrained in the flue gas flow? - correct-answer -radial straight
Which chemical is often used to control algae accumulation in cooling towers? -
correct-answer -copper sulfate
Where must your boiler operators license be kept? - correct-answer -in a
conspicuous place in the boiler or turbine room
When no boiler water analysis is made, what is the recommended frequency of
boiler blowdown per ASME code - correct-answer -every 24 hours
,3|Page
If scale has accumulated inside tubes of a watertube boiler, it is best removed by: -
correct-answer -an air-driven turbine tube cleaner
Which of the following combinations are needed to assure complete combustion
of the fuel in a boiler furnace?
-CO2,O2,CO, and excess air
-Mixture,atomization,time, and temp
-time, tmep, and O2
-feedwater,fuel, steam, and draft - correct-answer -mixture,atomization, time, and
temp
What is heated in an economizer - correct-answer -feedwater
If the water in a boiler is found to be dangerously low, what action should be
taken? - correct-answer -secure fires and manually isolate the feedwater
A flame scanner containing a lead sulfide cell is sensitive to - correct-answer -
Infrared radiation
, 4|Page
When may a bottom blow down line be as small as 3/4"? - correct-answer -if the
boiler has fewer than 100 sqft of heating surface
A sudden increase in the temp of the flue gases entering the stack from the
breeching would likely indicate: - correct-answer -a broken flue gas baffle
What is a superheater vent used for? - correct-answer -establish flow through the
superheater
Which of the following will help prevent furnace explosion?
-Ensuring a safe boiler water level at all times
-Setting the vaporstat to the highest allowable pressure setting
-Maintaining safety valves in good condition
-Purging the furnace after flame failure - correct-answer -Purging the furnace
after flame failure
Boilers laid up dry, have what material placed inside to absorb moisture? - correct-
answer -Quicklime or silica gel
