Zusammenfassung der Ressource
Frage 1
Frage
In modern pulverized coal firing facilities, the high ____ between the coal and the combustion air stream causes most of the ash to be carried over with the stack effluents.
Antworten
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turbulence
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temperatures
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quality
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flow
Frage 2
Frage
The _____ fan provides the volume of combustion air to the boiler
Antworten
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induced draft
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forced draft
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cross draft
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balanced draft
Frage 3
Frage
Dust laden flue gas from the boiler enters the ________ precipitator that contains a charging electrode. The dust particles receive a charge of electricity and become electrified.
Antworten
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electrostatic
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electric
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cyclone
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mist
Frage 4
Frage
The ______ system involves the use of solids handling equipment, such as scraper conveyors, bucket elevators, and conveyor belts.
Antworten
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ash
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mechanical
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pneumatic
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Hydro
Frage 5
Frage
The ______ fan is used to remove the hot flue gases from the boiler.
Antworten
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induced draft
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forced draft
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cross draft
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balanced draft
Frage 6
Frage
In the ____ scrubbing process, the heat of the flue gas is used to dry finely atomized slurry of alkaline reactants.
Antworten
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dry
-
wet
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liquid
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absorption
Frage 7
Frage
Louvers are installed in the _____ to direct the air to the base of the flame
Frage 8
Frage
The theory of particle precipitation is based on the fact that, when a moving particle changes its _____, a force is generated as a consequence
Antworten
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direction
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velocity
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humitity
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charge
Frage 9
Frage
Recovery systems for the removal of SO2 can be classified into the two major types
Antworten
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solid, liquid
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wet, dry
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large,small
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adsorption, absorption
Frage 10
Frage
Solid pollutants are dust particles known as ash, consisting mainly of the ____ parts of the fuel
Antworten
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combustible
-
solid
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metal
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non-combustible