Furnace Technology MCQs with answers Page - 3

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A

Admin • 831.35K Points
Coach

Q. Which of the following is a heat treatment furnace?

  • (A) Rotary kiln
  • (B) Reheating furnace
  • (C) Annealing furnace
  • (D) Muffle furnace

A

Admin • 831.35K Points
Coach

Q. The electric furnace in which heat is produced by a combination of induced current and skin effect is called __________ furnace.

  • (A) High frequency induction
  • (B) Low frequency induction
  • (C) Resistance
  • (D) Arc

A

Admin • 831.35K Points
Coach

Q. An electric furnace producing heat by means of an electric arc struck between each of three electrodes and the charge is called __________ furnace.

  • (A) Arc
  • (B) Resistance
  • (C) Low frequency induction
  • (D) None of these

A

Admin • 831.35K Points
Coach

Q. Calcination of limestone to produce lime is done in a __________ kiln.

  • (A) Tunnel
  • (B) Rotary
  • (C) Vertical shaft
  • (D) Both B and C

A

Admin • 831.35K Points
Coach

Q. Pot furnace which is either regenerative or recupterative, is used in the manufacture of

  • (A) Glass
  • (B) Stainless steel
  • (C) Potteries
  • (D) Refractory bricks

A

Admin • 831.35K Points
Coach

Q. An example of indirectly heated furnace is the

  • (A) Soaking pit
  • (B) Muffle furnace
  • (C) Reheating furnace
  • (D) None of these

A

Admin • 831.35K Points
Coach

Q. The resistance furnace produces heat by the

  • (A) Electric arc struck between electrodes and the charge
  • (B) Flow of current through a heating element
  • (C) Combination of induced current and skin effect
  • (D) None of these

A

Admin • 831.35K Points
Coach

Q. Which of the following is not a continuous waste heat recovery equipment from the flue gases going out of furnace?

  • (A) Waste heat boiler
  • (B) Ceramic recuperator
  • (C) Regenerator
  • (D) Economiser

A

Admin • 831.35K Points
Coach

Q. Flue gas outlet temperature from the chimney of any furnace should be ideally about __________ °C.

  • (A) 50
  • (B) 100
  • (C) 150
  • (D) 250

A

Admin • 831.35K Points
Coach

Q. In order to maintain a reducing atmosphere in a furnace, it should have

  • (A) No O2 in flue gas
  • (B) CO in flue gas
  • (C) High excess air
  • (D) None of these

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