Boiler Operator Licensing Exam
Questions And Answers
1 or more safety valves - - correct answer ✅all steam boilers must
have
Locked closed - - correct answer ✅before anyone enters the boiler
drum, the main steam stop valve, bottom blowdown valves, &
feedwater valves should be
212 degrees F - - correct answer ✅at atmospheric pressure, water
begins to boil at approximately
Fuel oil, gas, & coal - - correct answer ✅fuels most commonly used
in boilers
Steam pressure gauge - - correct answer ✅must be connected to
the highest part of the steam side of the boiler
Half full - - correct answer ✅with an NOWL in a boiler, the gauge
glass is approximately
Foaming - - correct answer ✅a high surface tension on top of the
boiler water can lead to
,Boiler Operator Licensing Exam
Questions And Answers
Mud drum - - correct answer ✅Bottom blowdown on a boiler
removes sludge & sediment from the
Tin - - correct answer ✅a boiler fusible plug is brass or bronze with
a core of
Pounds per square inch - - correct answer ✅a steam pressure
gauge is calibrated in
Try cocks - - correct answer ✅a secondary means of determining
boiler water level
Oily waste rag storage - - correct answer ✅fires caused by
spontaneous combustion are most likely to occur in the
Steam - - correct answer ✅a siphon installed between the boiler &
the pressure gauge protects the Bourdon tube from
Prevent formation of scale - - correct answer ✅boiler feedwater is
chemically treated to
, Boiler Operator Licensing Exam
Questions And Answers
Inside tube surface - - correct answer ✅in a firetube boiler, soot
accumulates on the
1.5 times the MAWP - - correct answer ✅the pressure applied on
the boiler during a hydrostatic test should be
Decreased - - correct answer ✅as fuel oil is heated, its viscosity is
Chimney - - correct answer ✅the induced draft fan is located
between the boiler & the
Flash when exposed to an open flame - - correct answer ✅the
flash point of fuel oil is the minimum temperature at which the fuel
will
Burn continually - - correct answer ✅the fire point of fuel oil is the
minimum temperature at which the fuel will
Lowest; flow - - correct answer ✅the pour point of fuel oil is the
____ temperature at which fuel oil will ____
Questions And Answers
1 or more safety valves - - correct answer ✅all steam boilers must
have
Locked closed - - correct answer ✅before anyone enters the boiler
drum, the main steam stop valve, bottom blowdown valves, &
feedwater valves should be
212 degrees F - - correct answer ✅at atmospheric pressure, water
begins to boil at approximately
Fuel oil, gas, & coal - - correct answer ✅fuels most commonly used
in boilers
Steam pressure gauge - - correct answer ✅must be connected to
the highest part of the steam side of the boiler
Half full - - correct answer ✅with an NOWL in a boiler, the gauge
glass is approximately
Foaming - - correct answer ✅a high surface tension on top of the
boiler water can lead to
,Boiler Operator Licensing Exam
Questions And Answers
Mud drum - - correct answer ✅Bottom blowdown on a boiler
removes sludge & sediment from the
Tin - - correct answer ✅a boiler fusible plug is brass or bronze with
a core of
Pounds per square inch - - correct answer ✅a steam pressure
gauge is calibrated in
Try cocks - - correct answer ✅a secondary means of determining
boiler water level
Oily waste rag storage - - correct answer ✅fires caused by
spontaneous combustion are most likely to occur in the
Steam - - correct answer ✅a siphon installed between the boiler &
the pressure gauge protects the Bourdon tube from
Prevent formation of scale - - correct answer ✅boiler feedwater is
chemically treated to
, Boiler Operator Licensing Exam
Questions And Answers
Inside tube surface - - correct answer ✅in a firetube boiler, soot
accumulates on the
1.5 times the MAWP - - correct answer ✅the pressure applied on
the boiler during a hydrostatic test should be
Decreased - - correct answer ✅as fuel oil is heated, its viscosity is
Chimney - - correct answer ✅the induced draft fan is located
between the boiler & the
Flash when exposed to an open flame - - correct answer ✅the
flash point of fuel oil is the minimum temperature at which the fuel
will
Burn continually - - correct answer ✅the fire point of fuel oil is the
minimum temperature at which the fuel will
Lowest; flow - - correct answer ✅the pour point of fuel oil is the
____ temperature at which fuel oil will ____
