Furnace Technology MCQs with answers Page - 8

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A

Admin • 802.91K Points
Coach

Q. Fuel used in B.F. stove is

  • (A) Pulverised coal
  • (B) Furnace oil
  • (C) Blast furnace gas/mixed gas
  • (D) Coke oven gas

A

Admin • 802.91K Points
Coach

Q. Design of waste heat boiler for recovery of waste heat from furnace gases depends upon the

  • (A) Quantity & temperature of waste gas
  • (B) Dust concentration & nature of dust in waste gas
  • (C) Corrosive nature of the waste gas
  • (D) All of the above

A

Admin • 802.91K Points
Coach

Q. The rate of scaling of furnace stock depends upon the

  • (A) Temperature
  • (B) Time
  • (C) Nature of atmosphere
  • (D) All of the above

A

Admin • 802.91K Points
Coach

Q. Which of the following is the most suitable for preheating combustion air above 650°C ?

  • (A) Regenerator
  • (B) Metallic recuperator
  • (C) Ceramic recuperator
  • (D) None of these

A

Admin • 802.91K Points
Coach

Q. Which of the following is a natural draft furnace?

  • (A) Blast furnace stoves
  • (B) Power plant boilers
  • (C) Sintering furnace
  • (D) None of these

A

Admin • 802.91K Points
Coach

Q. In a furnace operation, which is not preheated?

  • (A) Solid fuels
  • (B) Hydrocarbon containing fuel gases (e.g. coke oven gas, refinery gas etc.)
  • (C) Both A and B
  • (D) Neither A nor B

A

Admin • 802.91K Points
Coach

Q. Turn down ratio of a burner

  • (A) Should be as low as possible i.e., 1 : 2
  • (B) Should be 1:1 for a batch type furnace.
  • (C) Is the ratio of maximum to minimum permissible heat input rates
  • (D) Is normally much more for a continuous furnace as compared to a batch furnace

A

Admin • 802.91K Points
Coach

Q. Heat transfer takes place through a liquid medium surrounding the submerged material under heating, in case of a/an

  • (A) Blast furnace
  • (B) Steam boiler
  • (C) Salt bath furnace
  • (D) Annealing furnace

A

Admin • 802.91K Points
Coach

Q. Unit of furnace loading is

  • (A) Ton stock/hr/m2 hearth area
  • (B) Ton stock/hr
  • (C) Ton stock/m2 hearth area
  • (D) Both B and C

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