Chapter 3 CUPOLA OPERATION MCQs 10 min Score: 0 Attempted: 0/10 Subscribe 1. . For melting of cast iron, which of the following furnace is used? (A) Rotary furnace (B) Cupola furnace (C) Pit furnace (D) Electric furnaceShow All Answers 2. . Why is sand bed prepared for melting of metal in Cupola furnace? (A) It provides a refractory bottom (B) It soaks the moisture from the metal (C) It conducts the heat faster and uniformly (D) None of the mentionedShow All Answers 3. . What is the function of slag hole in a cupola furnace? (A) To tap the slag generated (B) To generate the slag (C) To allow outflow of gases (D) All of the mentionedShow All Answers 4. . Incoming air pressure and quantity in cupola furnace are controlled by which of the following element? (A) Tuyeres (B) Tapping spout (C) Wind box (D) Blast pipeShow All Answers 5. . Which of the following chemical compound is the most common flux added to the charge in a cupola furnace? (A) Coke (B) Methane (C) Carbon dioxide (D) LimestoneShow All Answers 6. . Electric arc furnaces are most suitable for which of the following type of material? (A) Ferrous (B) Non-Ferrous (C) Both ferrous and nonferrous (D) Neither ferrous nor nonferrousShow All Answers 7. . There is no direct contact of flame and metal in which of the following type of furnace? (A) Cupola (B) Crucible (C) Electric arc (D) InductionShow All Answers 8. . What is hearth in a furnace? (A) The electrodes are often called hearth (B) The walls of the furnace (C) The bowl shaped bottom of the furnace (D) The dome shaped roof of the furnaceShow All Answers 9. . Why are flux added to the charge (parent metal to be melted) during melting of a metal? (A) To increase carbon content (B) To increase refractoriness (C) To add specific oxides (D) To remove specific oxidesShow All Answers 10. . Gas-Fired burner is used in which of the following furnace? (A) Induction Furnace (B) Reverberatory Furnace (C) Cupola Furnace (D) Crucible FurnaceShow All Answers
