Materials and Manufacturing Processes MCQs

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1. Which of the following is not a primary manufacturing process?



2. What is the main advantage of hot working over cold working in metal forming?



3. Which material removal process is typically used for producing very smooth and precise surfaces?



4. Which casting process involves rotating a mold to achieve centrifugal force during solidification?



5. Which type of welding process uses a consumable electrode and a shielding gas?



6. Which joining process does not involve melting of the base metals?



7. Which manufacturing process is used to produce complex shapes with high precision using a computer-controlled machine tool?



8. Which heat treatment process involves heating and then rapidly cooling a metal to improve its hardness?



9. Which material is commonly used as a matrix in composite materials?



10. What is the primary advantage of powder metallurgy over conventional metal forming processes?



11. Which non-destructive testing method uses sound waves to detect internal defects in materials?



12. Which material shaping process involves forcing molten metal into a mold cavity under high pressure?



13. What is the primary purpose of annealing in metalworking?



14. Which additive manufacturing technique uses a focused laser beam to selectively melt metal powder layer by layer?



15. What is the primary advantage of CNC machining over conventional machining?



16. Which polymer processing method involves forcing molten polymer through a die to create a continuous profile?



17. Which material removal process is commonly used to produce internal threads in a metal component?



18. Which non-destructive testing method uses magnetic fields to detect surface and near-surface defects in ferromagnetic materials?



19. Which metal forming process involves applying compressive force to reshape a material without melting it?



20. What is the primary purpose of tempering in heat treatment of steel?



21. Which additive manufacturing technique uses a photopolymer resin cured by ultraviolet light to build up layers?



22. Which material removal process is used to create holes of precise diameter and depth in metal components?



23. What is the primary advantage of hot-dip galvanizing over electroplating?



24. Which type of plastic molding process uses a hollow mold that is filled by extrusion or injection?



25. Which manufacturing process is used to create intricate metal parts with high dimensional accuracy using a wax pattern?



26. What is the primary advantage of composite materials over metals in aerospace applications?



27. Which non-destructive testing method uses a liquid dye that penetrates surface-breaking defects to enhance visibility?



28. Which joining process uses a filler metal with a melting point below that of the base metals being joined?



29. Which heat treatment process involves heating a metal to a specific temperature and then cooling it slowly in a controlled environment?



30. What is the primary advantage of powder metallurgy in manufacturing parts?



31. Which manufacturing process is used to produce thin sheets of metal by squeezing metal between rollers?



32. Which polymer processing method uses a mold to shape molten polymer into a desired form?



33. What is the primary advantage of CNC machining over conventional machining methods?



34. Which non-destructive testing method uses electromagnetic induction to detect surface and subsurface defects in conductive materials?



35. Which metal forming process involves squeezing metal between two dies to produce a finished part?



36. What is the primary purpose of shot peening in manufacturing processes?



37. Which additive manufacturing technique uses a high-power laser to melt metal powder layer by layer?



38. Which metal forming process involves stretching a metal sheet over a die to create a three-dimensional shape?



39. What is the primary advantage of investment casting over sand casting?



40. Which non-destructive testing method is used to detect internal defects in non-metallic materials such as composites?



41. Which joining process uses frictional heat to weld two materials together without melting them?



42. What is the primary function of a riser in casting processes?



43. Which polymer processing method uses a mold and pressure to form a polymer around a core?



44. Which heat treatment process involves heating a metal to a temperature below its melting point and holding it to achieve uniformity?



45. What is the primary advantage of electroplating over hot-dip galvanizing?



46. Which manufacturing process is used to produce hollow metal components with uniform wall thickness?



47. What is the primary advantage of CNC turning over conventional lathe turning?



48. Which non-destructive testing method uses radioactive isotopes to detect internal defects in thick metal sections?



49. Which material removal process is used to create flat surfaces and precise angles on metal components?



 

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