3.7 Boiler draft and flue Gas equipment

TRAVIS CANNING
Quiz by TRAVIS CANNING, updated more than 1 year ago
TRAVIS CANNING
Created by TRAVIS CANNING over 5 years ago
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Description

Quiz on 3.7 Boiler draft and flue Gas equipment, created by TRAVIS CANNING on 01/15/2016.

Resource summary

Question 1

Question
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.
Answer
  • turbulence
  • temperatures
  • quality
  • flow

Question 2

Question
The _____ fan provides the volume of combustion air to the boiler
Answer
  • induced draft
  • forced draft
  • cross draft
  • balanced draft

Question 3

Question
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.
Answer
  • electrostatic
  • electric
  • cyclone
  • mist

Question 4

Question
The ______ system involves the use of solids handling equipment, such as scraper conveyors, bucket elevators, and conveyor belts.
Answer
  • ash
  • mechanical
  • pneumatic
  • Hydro

Question 5

Question
The ______ fan is used to remove the hot flue gases from the boiler.
Answer
  • induced draft
  • forced draft
  • cross draft
  • balanced draft

Question 6

Question
In the ____ scrubbing process, the heat of the flue gas is used to dry finely atomized slurry of alkaline reactants.
Answer
  • dry
  • wet
  • liquid
  • absorption

Question 7

Question
Louvers are installed in the _____ to direct the air to the base of the flame
Answer
  • fan
  • burner
  • windbox
  • ducts

Question 8

Question
The theory of particle precipitation is based on the fact that, when a moving particle changes its _____, a force is generated as a consequence
Answer
  • direction
  • velocity
  • humitity
  • charge

Question 9

Question
Recovery systems for the removal of SO2 can be classified into the two major types
Answer
  • solid, liquid
  • wet, dry
  • large,small
  • adsorption, absorption

Question 10

Question
Solid pollutants are dust particles known as ash, consisting mainly of the ____ parts of the fuel
Answer
  • combustible
  • solid
  • metal
  • non-combustible
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