Boiler Operator Licensing Exam – Power
Engineering Certification – Practice
Questions and Answers
Introduction:
This document contains an extensive collection of boiler
operator licensing exam questions with clear answers,
covering both theoretical knowledge and practical plant
operation. Topics include boiler components, combustion, fuel
systems, safety devices, water treatment, pressure controls,
piping, regulations, and power engineering calculations,
making it suitable for exam preparation and revision. The
material aligns well with boiler operator and power engineer
certification requirements, particularly within Canadian
regulatory frameworks.
Exam Questions and Answers:
Starts & stops the burner on steam pressure demand -Answer:-
On/off pressure control
Secures the fuel & purges the furnace in the event of a flame
failure -Answer:-Programmer
,Calibrated in inches of mercury below atmospheric pressure -
Answer:-Vacuum gauges
Causes pitting of boiler material -Answer:-Oxygen
Can be caused by an accumulation of vapors -Answer:-Furnace
explosion
Burn oil, grease, paint, & other flammable liquids -Answer:-
Class B fires
Should be kept open when the boiler is warmed up -Answer:-
Boiler vent
Lower than the fire point of fuel oil -Answer:-Flash point
If the ____ on a duplex strainer, air could be drawn into the
fuel lines -Answer:-Gasket leaks
Used to atomized fuel oil -Answer:-Primary air
,Should be used to clean the inside of a gauge glass -Answer:-
Cloth wrapped around a wooden dowel
An accepted reference or practice -Answer:-Standard
Has the highest heating value in btu/gal -Answer:-#6 fuel oil
Can become steambound if feedwater temperature is too high -
Answer:-Feedwater pump
Should be blown down once a shift -Answer:-Water column
Controls the amount of fire in the burner -Answer:-Modulating
pressure control
boiler water carried into steam lines -Answer:-Priming
Controls high & low fire -Answer:-Pressure control
Water weighs approximately -Answer:-8.3 lb/gal
, Collects excess water in a natural circulation hot water heating
system -Answer:-Expansion tank
Tests safety valve operation -Answer:-Try lever test
Depends on the operation of a float controlled valve -Answer:-
Feedwater regulator
Used in a flame scanner -Answer:-Lead sulfide cell
The hydrostatic pressure of every foot of vertical piping filled
with water -Answer:-.433 psi
thin pieces that attach tubes and keep the correct space
between tubes in a tube sheet -Answer:-boiler ligament
used to support flat surfaces in a boiler, the internal pressure
will be contained without distortion -Answer:-boiler stays
rod, girder, longitudinal, gusset, bolt, sling -Answer:-stay
examples
Engineering Certification – Practice
Questions and Answers
Introduction:
This document contains an extensive collection of boiler
operator licensing exam questions with clear answers,
covering both theoretical knowledge and practical plant
operation. Topics include boiler components, combustion, fuel
systems, safety devices, water treatment, pressure controls,
piping, regulations, and power engineering calculations,
making it suitable for exam preparation and revision. The
material aligns well with boiler operator and power engineer
certification requirements, particularly within Canadian
regulatory frameworks.
Exam Questions and Answers:
Starts & stops the burner on steam pressure demand -Answer:-
On/off pressure control
Secures the fuel & purges the furnace in the event of a flame
failure -Answer:-Programmer
,Calibrated in inches of mercury below atmospheric pressure -
Answer:-Vacuum gauges
Causes pitting of boiler material -Answer:-Oxygen
Can be caused by an accumulation of vapors -Answer:-Furnace
explosion
Burn oil, grease, paint, & other flammable liquids -Answer:-
Class B fires
Should be kept open when the boiler is warmed up -Answer:-
Boiler vent
Lower than the fire point of fuel oil -Answer:-Flash point
If the ____ on a duplex strainer, air could be drawn into the
fuel lines -Answer:-Gasket leaks
Used to atomized fuel oil -Answer:-Primary air
,Should be used to clean the inside of a gauge glass -Answer:-
Cloth wrapped around a wooden dowel
An accepted reference or practice -Answer:-Standard
Has the highest heating value in btu/gal -Answer:-#6 fuel oil
Can become steambound if feedwater temperature is too high -
Answer:-Feedwater pump
Should be blown down once a shift -Answer:-Water column
Controls the amount of fire in the burner -Answer:-Modulating
pressure control
boiler water carried into steam lines -Answer:-Priming
Controls high & low fire -Answer:-Pressure control
Water weighs approximately -Answer:-8.3 lb/gal
, Collects excess water in a natural circulation hot water heating
system -Answer:-Expansion tank
Tests safety valve operation -Answer:-Try lever test
Depends on the operation of a float controlled valve -Answer:-
Feedwater regulator
Used in a flame scanner -Answer:-Lead sulfide cell
The hydrostatic pressure of every foot of vertical piping filled
with water -Answer:-.433 psi
thin pieces that attach tubes and keep the correct space
between tubes in a tube sheet -Answer:-boiler ligament
used to support flat surfaces in a boiler, the internal pressure
will be contained without distortion -Answer:-boiler stays
rod, girder, longitudinal, gusset, bolt, sling -Answer:-stay
examples
