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MCQs

Total Questions : 53 | Page 6 of 6 pages
Question 51. For intermittent work which of the following furnaces is suitable?
  1.    Indirect arc furnace
  2.    Core less furnace
  3.    Either of the above
  4.    None of the above
 Discuss Question
Answer: Option A. -> Indirect arc furnace
Question 52. In direct arc furnace, which of the following has high value?
  1.    Current
  2.    Voltage
  3.    Power factor
  4.    All of the above
 Discuss Question
Answer: Option A. -> Current
Question 53. Due to which of the following reasons it is desirable to have short arc length?
  1.    To achieve better heating
  2.    To increase the life of roof refractory
  3.    To have better stirring action
  4.    All of the above
 Discuss Question
Answer: Option D. -> All of the above

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