3b1 3.1 Watertube boiler design

Description

Quiz on 3b1 3.1 Watertube boiler design, created by TRAVIS CANNING on 14/01/2016.
TRAVIS CANNING
Quiz by TRAVIS CANNING, updated more than 1 year ago
TRAVIS CANNING
Created by TRAVIS CANNING almost 9 years ago
14
1

Resource summary

Question 1

Question
Field erected boilers have outputs of?
Answer
  • 75000 kg/h
  • 100000kg/h
  • 100mg/h
  • 150000kg/h or more

Question 2

Question
Feed-water entering the boiler section first passes through the ________ section where it is heated by the combustion gases leaving the boiler.
Answer
  • furnace
  • economizer
  • boiler drum
  • superheater

Question 3

Question
Where electric power is used as the heating source, the boiler rating shall be the maximum kilowatt rating of the:
Answer
  • power plant
  • heating element
  • Boiler wiring
  • MCC

Question 4

Question
Generally two types of draft fans are used. A ____ ___ fan supplies air to the air preheater. The preheated air for combustion goes to the coal pulverizers and to the burners. An ______ ___ fan exhausts the combustion gases from the air heater to the stack.
Answer
  • center mounted, external mounted
  • forced draft, induced draft
  • induced draft, forced draft
  • turbine draft, ejection draft

Question 5

Question
The arrangement of a once through boiler has no drums. The feed water is heated and then evaporated and superheated in _____ _____ through the unit.
Answer
  • Two passes
  • One passage
  • 3 passes
  • 4 passes

Question 6

Question
The main advantage of the packaged boiler is its
Answer
  • small size
  • compact design
  • low cost
  • quality steam

Question 7

Question
Packaged watertube boilers capacities range from?
Answer
  • 2300kg to 65000kg per hour
  • 500kg to 100mg per hour
  • 15psi to 15000
  • 65000 to 100000 kg per hour

Question 8

Question
The advantage of forced circulation in a boiler for a _______ flow in all tubes
Answer
  • negative
  • greater
  • positive
  • mass

Question 9

Question
The steam separating equipment separates the _____ from the steam/water mixture
Answer
  • water
  • steam
  • impurities
  • water droplets

Question 10

Question
These types of boilers (A,D, and O) have furnaces cooled by _____ lining the furnace walls
Answer
  • watertubes
  • fans
  • desuperheaters
  • air circulation
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