Power Engineering 4A Exam
An interrupted pilot of an automatic boiler: A
Select one:
a. Ignites, is proven stable and extinguishes after the main
flame is established
b. Is one that has been extinguished by an inadequate
flame signal
c. Ignites before the main burner ignites, and is
extinguished when the main burner is extinguished
d. Burns continuously, like that in a home furnace
In a fluidized bed boiler, a gradual loss of the fluidized D
bed, including fuel (carbon) particles, is due to:
Select one:
a. Priming
b. Sootblowing
c. Uplift
d. Carryover
The test material for a penetrant test (PT) must be: D
Select one:
a. ferrous
b. non-ferrous
c. porous
d. non-porous
If your plant maintenance department neglects oil A
changes, filter replacement, and bearing lubrication, your
plant will eventually need more unscheduled ___________
maintenance.
Select one:
a. Emergency
b. Preventative
c. Routine
d. Project
, Power Engineering 4A Exam
The holder of a Certificate of Competency, the B
classification of which authorises him or her to act as a
engineer, may sketch, construct, install, operate, repair,
and give advice on all things pertaining to any _____ in
which that person is employed.
Select one:
a. Welding shop
b. Power plant
c. Fish plant
d. Hydro plant
Which of the following is a single pass boiler? D
Select one:
a. HRT
b. Scotch marine
c. Packaged firetube
d. Vertical firetube
Iron and steel may be magnetized by rubbing the metal D
with a:
Select one:
a. Stainless steel
b. Steel wool
c. Brass rod
d. Magnet
The apparatus which converts current signals to C
pneumatic and pneumatic to current signals is called a:
Select one:
a. Transformer
b. Inverter
c. Transducer
d. Converter
Before a steam or air atomizing oil burner is removed A
from a boiler furnace, the burner should be blown out
with:
Select one:
a. Steam or air
b. High temperature solvent
c. Coal oil
d. Solvent
Which of the following emissions is NOT considered a A
gaseous pollutant?
Select one:
a. Nitrogen
b. Methane
c. Sulphur oxides
d. Carbon monoxide
, Power Engineering 4A Exam
A thermostatic steam trap is controlled by the: B
Select one:
a. Bucket, which flips when filled with condensate
b. Temperature difference between condensate and
steam
c. air pressure built up on top of disk
d. Difference in velocity between condensate and steam
A typical application of forged steel in a power plant is: D
Select one:
a. Ash handling systems
b. Superheated steam lines
c. Superheated steam lines
d. Pipe fittings
A disadvantage of an electric boiler is that it: A
Select one:
a. Is very expensive to operate
b. Is inefficient
c. Requires alternating current
d. Has no chimney
The amount of air required to supply just enough oxygen D
for complete combustion is called the:
Select one:
a. Excess air
b. Perfect air
c. Primary air
d. Theoretical air
"Transpiration" is the process where: C
Select one:
a. dissolved oxygen is expelled from water
b. water vapour goes through a phase change
c. plants release water
d. animals inhale oxygen
A Van Stone flange is fitted ___________ on a pipe: B
Select one:
a. With evenly spaced set screws
b. Loosely
c. By threading coursely
d. with tack welds
, Power Engineering 4A Exam
Current transformers are: A
Select one:
a. Voltage step-up transformers
b. K-type transformers
c. High power factor transformers
d. Current step-up transformers
A multi-burner cluster has secondary and tertiary nozzles A
ignited by:
Select one:
a. The primary burner
b. An interrupted pilot
c. An igniter spark
d. An intermittent pilot flame
The flow of electrons in a uniform direction is called: B
Select one:
a. Voltage drop
b. Electric current flow
c. Potential difference
d. Electromotive flow
The advantage of using a venturi tube, rather than an D
orifice plate for flow measurement is it:
Select one:
a. Is less bulky
b. Requires only one pressure tap
c. Costs less to install
d. Produces less permanent pressure drop
A plant line tracing is a _________ that helps Power Engineers C
to learn a new plant:
Select one:
a. Process Flow Diagram
b. Formal Line Drawing
c. Single line sketch
d. Plant Instrumentation Diagram
An interrupted pilot of an automatic boiler: A
Select one:
a. Ignites, is proven stable and extinguishes after the main
flame is established
b. Is one that has been extinguished by an inadequate
flame signal
c. Ignites before the main burner ignites, and is
extinguished when the main burner is extinguished
d. Burns continuously, like that in a home furnace
In a fluidized bed boiler, a gradual loss of the fluidized D
bed, including fuel (carbon) particles, is due to:
Select one:
a. Priming
b. Sootblowing
c. Uplift
d. Carryover
The test material for a penetrant test (PT) must be: D
Select one:
a. ferrous
b. non-ferrous
c. porous
d. non-porous
If your plant maintenance department neglects oil A
changes, filter replacement, and bearing lubrication, your
plant will eventually need more unscheduled ___________
maintenance.
Select one:
a. Emergency
b. Preventative
c. Routine
d. Project
, Power Engineering 4A Exam
The holder of a Certificate of Competency, the B
classification of which authorises him or her to act as a
engineer, may sketch, construct, install, operate, repair,
and give advice on all things pertaining to any _____ in
which that person is employed.
Select one:
a. Welding shop
b. Power plant
c. Fish plant
d. Hydro plant
Which of the following is a single pass boiler? D
Select one:
a. HRT
b. Scotch marine
c. Packaged firetube
d. Vertical firetube
Iron and steel may be magnetized by rubbing the metal D
with a:
Select one:
a. Stainless steel
b. Steel wool
c. Brass rod
d. Magnet
The apparatus which converts current signals to C
pneumatic and pneumatic to current signals is called a:
Select one:
a. Transformer
b. Inverter
c. Transducer
d. Converter
Before a steam or air atomizing oil burner is removed A
from a boiler furnace, the burner should be blown out
with:
Select one:
a. Steam or air
b. High temperature solvent
c. Coal oil
d. Solvent
Which of the following emissions is NOT considered a A
gaseous pollutant?
Select one:
a. Nitrogen
b. Methane
c. Sulphur oxides
d. Carbon monoxide
, Power Engineering 4A Exam
A thermostatic steam trap is controlled by the: B
Select one:
a. Bucket, which flips when filled with condensate
b. Temperature difference between condensate and
steam
c. air pressure built up on top of disk
d. Difference in velocity between condensate and steam
A typical application of forged steel in a power plant is: D
Select one:
a. Ash handling systems
b. Superheated steam lines
c. Superheated steam lines
d. Pipe fittings
A disadvantage of an electric boiler is that it: A
Select one:
a. Is very expensive to operate
b. Is inefficient
c. Requires alternating current
d. Has no chimney
The amount of air required to supply just enough oxygen D
for complete combustion is called the:
Select one:
a. Excess air
b. Perfect air
c. Primary air
d. Theoretical air
"Transpiration" is the process where: C
Select one:
a. dissolved oxygen is expelled from water
b. water vapour goes through a phase change
c. plants release water
d. animals inhale oxygen
A Van Stone flange is fitted ___________ on a pipe: B
Select one:
a. With evenly spaced set screws
b. Loosely
c. By threading coursely
d. with tack welds
, Power Engineering 4A Exam
Current transformers are: A
Select one:
a. Voltage step-up transformers
b. K-type transformers
c. High power factor transformers
d. Current step-up transformers
A multi-burner cluster has secondary and tertiary nozzles A
ignited by:
Select one:
a. The primary burner
b. An interrupted pilot
c. An igniter spark
d. An intermittent pilot flame
The flow of electrons in a uniform direction is called: B
Select one:
a. Voltage drop
b. Electric current flow
c. Potential difference
d. Electromotive flow
The advantage of using a venturi tube, rather than an D
orifice plate for flow measurement is it:
Select one:
a. Is less bulky
b. Requires only one pressure tap
c. Costs less to install
d. Produces less permanent pressure drop
A plant line tracing is a _________ that helps Power Engineers C
to learn a new plant:
Select one:
a. Process Flow Diagram
b. Formal Line Drawing
c. Single line sketch
d. Plant Instrumentation Diagram
