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