age 1 of 18
Boiler Operator Licensing Exam Questions and
Answers
1 or more safety valves ......ANSWER........all steam boilers must
have
Locked closed ......ANSWER........before anyone enters the boiler
drum, the main steam stop valve, bottom blowdown valves, &
feedwater valves should be
212 degrees F ......ANSWER........at atmospheric pressure, water
begins to boil at approximately
Fuel oil, gas, & coal ......ANSWER........fuels most commonly used
in boilers
Steam pressure gauge ......ANSWER........must be connected to
the highest part of the steam side of the boiler
Half full ......ANSWER........with an NOWL in a boiler, the gauge
glass is approximately
,age 2 of 18
Foaming ......ANSWER........a high surface tension on top of the
boiler water can lead to
Mud drum ......ANSWER........Bottom blowdown on a boiler
removes sludge & sediment from the
Tin ......ANSWER........a boiler fusible plug is brass or bronze with
a core of
Pounds per square inch ......ANSWER........a steam pressure
gauge is calibrated in
Try cocks ......ANSWER........a secondary means of determining
boiler water level
Oily waste rag storage ......ANSWER........fires caused by
spontaneous combustion are most likely to occur in the
Steam ......ANSWER........a siphon installed between the boiler &
the pressure gauge protects the Bourdon tube from
Prevent formation of scale ......ANSWER........boiler feedwater is
chemically treated to
, age 3 of 18
Inside tube surface ......ANSWER........in a firetube boiler, soot
accumulates on the
1.5 times the MAWP ......ANSWER........the pressure applied on
the boiler during a hydrostatic test should be
Decreased ......ANSWER........as fuel oil is heated, its viscosity is
Chimney ......ANSWER........the induced draft fan is located
between the boiler & the
Flash when exposed to an open flame ......ANSWER........the flash
point of fuel oil is the minimum temperature at which the fuel will
Burn continually ......ANSWER........the fire point of fuel oil is the
minimum temperature at which the fuel will
Lowest; flow ......ANSWER........the pour point of fuel oil is the
____ temperature at which fuel oil will ____
Dangerous to handle ......ANSWER........fuel oil with a low flash
point is
Boiler Operator Licensing Exam Questions and
Answers
1 or more safety valves ......ANSWER........all steam boilers must
have
Locked closed ......ANSWER........before anyone enters the boiler
drum, the main steam stop valve, bottom blowdown valves, &
feedwater valves should be
212 degrees F ......ANSWER........at atmospheric pressure, water
begins to boil at approximately
Fuel oil, gas, & coal ......ANSWER........fuels most commonly used
in boilers
Steam pressure gauge ......ANSWER........must be connected to
the highest part of the steam side of the boiler
Half full ......ANSWER........with an NOWL in a boiler, the gauge
glass is approximately
,age 2 of 18
Foaming ......ANSWER........a high surface tension on top of the
boiler water can lead to
Mud drum ......ANSWER........Bottom blowdown on a boiler
removes sludge & sediment from the
Tin ......ANSWER........a boiler fusible plug is brass or bronze with
a core of
Pounds per square inch ......ANSWER........a steam pressure
gauge is calibrated in
Try cocks ......ANSWER........a secondary means of determining
boiler water level
Oily waste rag storage ......ANSWER........fires caused by
spontaneous combustion are most likely to occur in the
Steam ......ANSWER........a siphon installed between the boiler &
the pressure gauge protects the Bourdon tube from
Prevent formation of scale ......ANSWER........boiler feedwater is
chemically treated to
, age 3 of 18
Inside tube surface ......ANSWER........in a firetube boiler, soot
accumulates on the
1.5 times the MAWP ......ANSWER........the pressure applied on
the boiler during a hydrostatic test should be
Decreased ......ANSWER........as fuel oil is heated, its viscosity is
Chimney ......ANSWER........the induced draft fan is located
between the boiler & the
Flash when exposed to an open flame ......ANSWER........the flash
point of fuel oil is the minimum temperature at which the fuel will
Burn continually ......ANSWER........the fire point of fuel oil is the
minimum temperature at which the fuel will
Lowest; flow ......ANSWER........the pour point of fuel oil is the
____ temperature at which fuel oil will ____
Dangerous to handle ......ANSWER........fuel oil with a low flash
point is
