3b1 3.1 Watertube boiler design

Descripción

Test sobre 3b1 3.1 Watertube boiler design, creado por TRAVIS CANNING el 14/01/2016.
TRAVIS CANNING
Test por TRAVIS CANNING, actualizado hace más de 1 año
TRAVIS CANNING
Creado por TRAVIS CANNING hace más de 8 años
13
1

Resumen del Recurso

Pregunta 1

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

Pregunta 2

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

Pregunta 3

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

Pregunta 4

Pregunta
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.
Respuesta
  • center mounted, external mounted
  • forced draft, induced draft
  • induced draft, forced draft
  • turbine draft, ejection draft

Pregunta 5

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

Pregunta 6

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

Pregunta 7

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

Pregunta 8

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

Pregunta 9

Pregunta
The steam separating equipment separates the _____ from the steam/water mixture
Respuesta
  • water
  • steam
  • impurities
  • water droplets

Pregunta 10

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