Chapter 2 CORE AND CORE MAKING MCQs 10 min Score: 0 Attempted: 0/10 Subscribe 1. . Which of the labeled part of the following diagram is a core? (A) a (B) b (C) c (D) dShow All Answers 2. . Which of the following is not a function of a core? (A) It is used to form internal cavities (B) It is used to form a part of green sand mold (C) It is used as a part of gating system (D) It is used as a part of furnaceShow All Answers 3. . Which of the following is a function of a core in casting? (A) Interior cavitational passages in a casting (B) To shape an external part of a more intricate casting (C) To strengthen and improve inner and outer surface of the mold (D) All of the mentionedShow All Answers 4. . What does the following figure represent? (A) Half core box (B) Split core box (C) Gang core box (D) Loose piece core boxShow All Answers 5. . Cores are baked up to what temperature? (A) 600°F (B) 650°F (C) 700°F (D) 750°FShow All Answers 6. . What does an unbaked core generate? (A) Greenhouse gases (B) Mold gases (C) Mold liquids (D) Ultraviolet raysShow All Answers 7. . Which of the following core cannot be classified by the nature of core material employed? (A) Dry sand core (B) Shell core (C) Sodium silicate core (D) Oil bonded coreShow All Answers 8. . Which of the following cores are produced by mixing silica? (A) Green sand cores (B) Dry sand cores (C) Oil bonded cores (D) Resin bonded coresShow All Answers 9. . What are the core boxes? (A) Used to support cores (B) Used to create cores (C) Used to store cores (D) Used to eject cores while ejection of casting after solidificationShow All Answers 10. . Why should the finishing of the core be made good enough? (A) The intricate shapes made are difficult for machine finishing (B) The size of the cavities and contours must be accurate to enable perfect assemblies (C) It reduces machining cost and time invested for that (D) All of the mentionedShow All Answers
