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The typical time required to heat a fluidized bed to ignition temperature prior to the introduction of coal is: Select one: a. Two hours b. Three hours c. One hour d. 30 minutes ✔✔C The typical time required to heat a fluidized bed to ignition temperature prior to the introduction of coal is: Select one: a. Two hours b. Three hours c. One hour d. 30 minutes ✔✔C
Typology: Exams
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The typical time required to heat a fluidized bed to ignition temperature prior to the introduction of coal is:
Select one:
a. Two hours
b. Three hours
c. One hour
d. 30 minutes ✔✔C
The typical time required to heat a fluidized bed to ignition temperature prior to the introduction of coal is:
Select one:
a. Two hours
b. Three hours
c. One hour
d. 30 minutes ✔✔C
When welding thick materials, proper weld groove selection and preparation allows for:
Select one:
a. a quick weld
b. proper heat treatment
c. full penetration
d. omitting the root pass ✔✔C
When welding thick materials, proper weld groove selection and preparation allows for:
Select one:
a. a quick weld
b. proper heat treatment
c. full penetration
d. omitting the root pass ✔✔C
An interrupted pilot of an automatic boiler:
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
In a fluidized bed boiler, a gradual loss of the fluidized bed, including fuel (carbon) particles, is due to:
Select one:
a. Priming
b. Sootblowing
c. Uplift
d. Carryover ✔✔D
The test material for a penetrant test (PT) must be:
Select one:
a. ferrous
b. non-ferrous
c. porous
d. non-porous ✔✔D
The test material for a penetrant test (PT) must be:
Select one:
a. ferrous
b. non-ferrous
c. porous
d. non-porous ✔✔D
If your plant maintenance department neglects oil changes, filter replacement, and bearing lubrication, your plant will eventually need more unscheduled ___________ maintenance.
Select one:
a. Emergency
b. Preventative
c. Routine
d. Project ✔✔A
If your plant maintenance department neglects oil changes, filter replacement, and bearing lubrication, your plant will eventually need more unscheduled ___________ maintenance.
Select one:
a. Emergency
b. Preventative
c. Routine
Which of the following is a single pass boiler?
Select one:
a. HRT
b. Scotch marine
c. Packaged firetube
d. Vertical firetube ✔✔D
Which of the following is a single pass boiler?
Select one:
a. HRT
b. Scotch marine
c. Packaged firetube
d. Vertical firetube ✔✔D
Iron and steel may be magnetized by rubbing the metal with a:
Select one:
a. Stainless steel
b. Steel wool
c. Brass rod
d. Magnet ✔✔D
Iron and steel may be magnetized by rubbing the metal with a:
Select one:
a. Stainless steel
b. Steel wool
c. Brass rod
d. Magnet ✔✔D
The apparatus which converts current signals to pneumatic and pneumatic to current signals is called a:
Select one:
a. Transformer
b. Inverter
c. Transducer
d. Converter ✔✔C
Select one:
a. Steam or air
b. High temperature solvent
c. Coal oil
d. Solvent ✔✔A
Which of the following emissions is NOT considered a gaseous pollutant?
Select one:
a. Nitrogen
b. Methane
c. Sulphur oxides
d. Carbon monoxide ✔✔A
Which of the following emissions is NOT considered a gaseous pollutant?
Select one:
a. Nitrogen
b. Methane
c. Sulphur oxides
d. Carbon monoxide ✔✔A
A thermostatic steam trap is controlled by the:
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 ✔✔B
A thermostatic steam trap is controlled by the:
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 ✔✔B
A typical application of forged steel in a power plant is:
Select one:
A disadvantage of an electric boiler is that it:
Select one:
a. Is very expensive to operate
b. Is inefficient
c. Requires alternating current
d. Has no chimney ✔✔A
The amount of air required to supply just enough oxygen for complete combustion is called the:
Select one:
a. Excess air
b. Perfect air
c. Primary air
d. Theoretical air ✔✔D
The amount of air required to supply just enough oxygen for complete combustion is called the:
Select one:
a. Excess air
b. Perfect air
c. Primary air
d. Theoretical air ✔✔D
"Transpiration" is the process where:
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 ✔✔C
"Transpiration" is the process where:
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 ✔✔C
c. High power factor transformers
d. Current step-up transformers ✔✔A
Current transformers are:
Select one:
a. Voltage step-up transformers
b. K-type transformers
c. High power factor transformers
d. Current step-up transformers ✔✔A
A multi-burner cluster has secondary and tertiary nozzles ignited by:
Select one:
a. The primary burner
b. An interrupted pilot
c. An igniter spark
d. An intermittent pilot flame ✔✔A
A multi-burner cluster has secondary and tertiary nozzles ignited by:
Select one:
a. The primary burner
b. An interrupted pilot
c. An igniter spark
d. An intermittent pilot flame ✔✔A
The flow of electrons in a uniform direction is called:
Select one:
a. Voltage drop
b. Electric current flow
c. Potential difference
d. Electromotive flow ✔✔B
The flow of electrons in a uniform direction is called:
Select one:
a. Voltage drop
b. Electric current flow
c. Potential difference
a. Process Flow Diagram
b. Formal Line Drawing
c. Single line sketch
d. Plant Instrumentation Diagram ✔✔C
A plant line tracing is a _________ that helps Power Engineers to learn a new plant:
Select one:
a. Process Flow Diagram
b. Formal Line Drawing
c. Single line sketch
d. Plant Instrumentation Diagram ✔✔C
Condensation losses in steam can be avoided by:
Select one:
a. Heating the steam to saturation temperature
b. Using wet steam
c. Using only high pressure steam
d. Installing steam separators
e. Using superheated steam ✔✔E
Condensation losses in steam can be avoided by:
Select one:
a. Heating the steam to saturation temperature
b. Using wet steam
c. Using only high pressure steam
d. Installing steam separators
e. Using superheated steam ✔✔E
Cast iron pipe has a high resistance to:
Select one:
a. Corrosion
b. Temperature changes
c. Water pressure
d. Impacts ✔✔A
Cast iron pipe has a high resistance to:
