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Exams > SAIL Junior Officer (E-0) 2022 > General Plant Operation Engineering (GPOE / GPA)

CHAPTER 4 : BLAST FURNACE MCQs

Total Questions : 10
Question 1. Iron ore in the form of oxides known as ?
  1.    Cuprite
  2.    cralena
  3.    carbon monoxide
  4.    Hematite
 Discuss Question
Answer: Option D. -> Hematite


Question 2. The real growth of BF technology came with the production of high strength ----which enabled construction of large size blast furnace ?
  1.    Iron Ore
  2.    Coke
  3.    Flux
  4.    All
 Discuss Question
Answer: Option B. -> Coke


Question 3. How much Fe content does occur in Iron ore ?
  1.    50-55%
  2.    55-60%
  3.    62-66%
  4.    70 – 75%
 Discuss Question
Answer: Option C. -> 62-66%


Question 4. Which material acts as an additive in hot metal ?
  1.    Quartzite
  2.    Mn ore
  3.    Both
  4.    None
 Discuss Question
Answer: Option C. -> Both


Question 5. The materials from ore trench are transported to ore yard with the help of ?
  1.    Ore bridge cranes
  2.    EOT cranes
  3.    Hot metal cranes
  4.    None
 Discuss Question
Answer: Option A. -> Ore bridge cranes


Question 6. Through which is CDI/CTI injected in B.F ?
  1.    the top
  2.    bottom
  3.    Tuyeres
  4.    None
 Discuss Question
Answer: Option C. -> Tuyeres


Question 7. True section from top down are in blast furnace ?
  1.    throat, shaft, bosh, hearth
  2.    throat, bosh shaft , hearth
  3.    throat, bosh, hearth, shaft
  4.    throat, shaft, hearth, bosh
 Discuss Question
Answer: Option A. -> throat, shaft, bosh, hearth


Question 8. Iron ore is found from ------- in BSP ?
  1.    Dalli
  2.    Rajhara
  3.    Raoghat
  4.    All
 Discuss Question
Answer: Option D. -> All


Question 9. Coke acts as a________________ in base mix in the sintering process
  1.    Fuel
  2.    Reductant
  3.    Solid fuel
  4.    None
 Discuss Question
Answer: Option C. -> Solid fuel


Question 10. In which section does complete reduction of iron oxide in BF ?
  1.    combustion Zone
  2.    stack zone
  3.    bosh zone
  4.    Incubation zone
 Discuss Question
Answer: Option A. -> combustion Zone


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