BOILER EXAM PRACTICE TESTS NEWEST
EXAM 2025 WITH MULTIPLE CHOICE OF
QUESTIONS AND DETAILED ANSWERS
WITH RATIONALES (VERIFIED
ANSWERS) ALREADY GRADED A+ AND
100% GUARANTEE PASS (BRAND
NEW!!!!!!!!)
steam leaving the boiler - CORRECT ANSWER-The boiler superheater
raises the temperature of the ___.
feedwater - CORRECT ANSWER-An economizer is used to preheat
___.
oily waste rags - CORRECT ANSWER-Fires caused by spontaneous
combustion would probably start in the ___.
dirty strainers - CORRECT ANSWER-A high suction reading on the
fuel oil pressure gauge indicates ___.
try cock - CORRECT ANSWER-The ___ is a secondary means of
determining boiler water level.
pyrometer - CORRECT ANSWER-A(n) ___ is used to measure furnace
temperature.
,1 ½ - CORRECT ANSWER-The range of a boiler pressure gauge must
not be less than ___ times the safety valve setting.
prevent formation of scale - CORRECT ANSWER-Boiler feedwater is
chemically treated to ___.
deadweight tester - CORRECT ANSWER-Pressure gauges are
calibrated with a(n) ___.
inside tube surface - CORRECT ANSWER-In a firetube boiler, soot
settles on the ___.
complete - CORRECT ANSWER-Carbon dioxide in the flue gas is a sign
of ___ combustion.
incomplete - CORRECT ANSWER-Carbon monoxide in the flue gas is a
sign of ___ combustion.
Globe - CORRECT ANSWER-___ valves should be used for throttling
service.
a dirty heating surface - CORRECT ANSWER-A gradual increase in
chimney temperature indicates ___.
1 ½ - CORRECT ANSWER-The pressure applied on the boiler during a
hydrostatic test is ___ times the MAWP.
,6 - CORRECT ANSWER-Boiler safety valve capacity must be such that
the steam pressure can never go higher than ___% above the
MAWP.
decreased - CORRECT ANSWER-As fuel oil is heated, its viscosity is
___.
6 - CORRECT ANSWER-No. ___ fuel oil has the highest Btu content
per gallon.
T - CORRECT ANSWER-T/F All steam boilers must have one or more
safety valves.
T - CORRECT ANSWER-T/F An open feedwater heater vents gases to
the atmosphere.
F - CORRECT ANSWER-T/F A hydrostatic test will determine whether
a steam boiler has sufficient relieving capacity.
T - CORRECT ANSWER-T/F When boilers are set in battery, the main
steam stop valves, bottom blowdown valves, and feedwater
valves should be locked closed before anyone enters the boiler
drums.
F - CORRECT ANSWER-T/F Open and closed feedwater heaters are
never used at the same time.
, T - CORRECT ANSWER-T/F In an open feedwater heater, the water
and steam come into direct contact; in a closed feedwater
heater, the water and steam are separated.
T - CORRECT ANSWER-T/F An economizer is a fuel-saving device
that reclaims heat from the gases of combustion.
F - CORRECT ANSWER-T/F Soot accumulation on the tubes of a
watertube boiler does not affect the efficiency of the boiler.
F - CORRECT ANSWER-T/F Scale protects the boiler heating surfaces.
F - CORRECT ANSWER-T/F Boiler corrosion cannot be prevented as
long as water is in contact with metal.
T - CORRECT ANSWER-T/F To prevent water hammer, water should
be drained out of all high pressure steam lines
T - CORRECT ANSWER-T/F Dry saturated steam is in a gaseous state.
F - CORRECT ANSWER-T/F Pressure on water does not change the
boiling point of the water.
F - CORRECT ANSWER-T/F The stop valve in a boiler feedwater line
should have the pump discharge pressure on the top of the
valve disc when the valve is closed.
EXAM 2025 WITH MULTIPLE CHOICE OF
QUESTIONS AND DETAILED ANSWERS
WITH RATIONALES (VERIFIED
ANSWERS) ALREADY GRADED A+ AND
100% GUARANTEE PASS (BRAND
NEW!!!!!!!!)
steam leaving the boiler - CORRECT ANSWER-The boiler superheater
raises the temperature of the ___.
feedwater - CORRECT ANSWER-An economizer is used to preheat
___.
oily waste rags - CORRECT ANSWER-Fires caused by spontaneous
combustion would probably start in the ___.
dirty strainers - CORRECT ANSWER-A high suction reading on the
fuel oil pressure gauge indicates ___.
try cock - CORRECT ANSWER-The ___ is a secondary means of
determining boiler water level.
pyrometer - CORRECT ANSWER-A(n) ___ is used to measure furnace
temperature.
,1 ½ - CORRECT ANSWER-The range of a boiler pressure gauge must
not be less than ___ times the safety valve setting.
prevent formation of scale - CORRECT ANSWER-Boiler feedwater is
chemically treated to ___.
deadweight tester - CORRECT ANSWER-Pressure gauges are
calibrated with a(n) ___.
inside tube surface - CORRECT ANSWER-In a firetube boiler, soot
settles on the ___.
complete - CORRECT ANSWER-Carbon dioxide in the flue gas is a sign
of ___ combustion.
incomplete - CORRECT ANSWER-Carbon monoxide in the flue gas is a
sign of ___ combustion.
Globe - CORRECT ANSWER-___ valves should be used for throttling
service.
a dirty heating surface - CORRECT ANSWER-A gradual increase in
chimney temperature indicates ___.
1 ½ - CORRECT ANSWER-The pressure applied on the boiler during a
hydrostatic test is ___ times the MAWP.
,6 - CORRECT ANSWER-Boiler safety valve capacity must be such that
the steam pressure can never go higher than ___% above the
MAWP.
decreased - CORRECT ANSWER-As fuel oil is heated, its viscosity is
___.
6 - CORRECT ANSWER-No. ___ fuel oil has the highest Btu content
per gallon.
T - CORRECT ANSWER-T/F All steam boilers must have one or more
safety valves.
T - CORRECT ANSWER-T/F An open feedwater heater vents gases to
the atmosphere.
F - CORRECT ANSWER-T/F A hydrostatic test will determine whether
a steam boiler has sufficient relieving capacity.
T - CORRECT ANSWER-T/F When boilers are set in battery, the main
steam stop valves, bottom blowdown valves, and feedwater
valves should be locked closed before anyone enters the boiler
drums.
F - CORRECT ANSWER-T/F Open and closed feedwater heaters are
never used at the same time.
, T - CORRECT ANSWER-T/F In an open feedwater heater, the water
and steam come into direct contact; in a closed feedwater
heater, the water and steam are separated.
T - CORRECT ANSWER-T/F An economizer is a fuel-saving device
that reclaims heat from the gases of combustion.
F - CORRECT ANSWER-T/F Soot accumulation on the tubes of a
watertube boiler does not affect the efficiency of the boiler.
F - CORRECT ANSWER-T/F Scale protects the boiler heating surfaces.
F - CORRECT ANSWER-T/F Boiler corrosion cannot be prevented as
long as water is in contact with metal.
T - CORRECT ANSWER-T/F To prevent water hammer, water should
be drained out of all high pressure steam lines
T - CORRECT ANSWER-T/F Dry saturated steam is in a gaseous state.
F - CORRECT ANSWER-T/F Pressure on water does not change the
boiling point of the water.
F - CORRECT ANSWER-T/F The stop valve in a boiler feedwater line
should have the pump discharge pressure on the top of the
valve disc when the valve is closed.
