Furnace Technology MCQs with answers Page - 16

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A

Admin • 833K Points
Coach

Q. An example of shaft furnace is the

  • (A) L.D. converter
  • (B) Glass melting tank
  • (C) Blast furnace
  • (D) Soaking pit

A

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Q. The thermal efficiency of a steel slab reheating furnace (walking beam type) may be about __________ percent.

  • (A) 15
  • (B) 40
  • (C) 70
  • (D) 85

A

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Coach

Q. Thermal efficiency of blast furnace stoves used for heating blast (air) may be about _______________ percent.

  • (A) 20
  • (B) 40
  • (C) 60
  • (D) 80

A

Admin • 833K Points
Coach

Q. Maximum thermal efficiency of boiler may be about __________ percent.

  • (A) 10
  • (B) 25
  • (C) 65
  • (D) 90

A

Admin • 833K Points
Coach

Q. Overall thermal efficiency of a lumpy coal fired suitably designed heating furnace, if operated & maintained properly may be about __________ percent.

  • (A) 10-15
  • (B) 25-30
  • (C) 45-50
  • (D) 65-70

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