資訊推薦

• 13. A riser in casting is best described by which of the following: (A) an insert in the casting tha
• 14. Which of the following casting processes are expendable-mold operations: (A) centrifugal casting
• 15. Shell molding is best described by which one of the following: (A) casting operation in which th
• 16. Which of the following metal would typically NOT be used in die casting: (A) aluminum, (B)magnes
• 17. Which of the following are NOT advantages of die casting over sand casting: (A) better surface f
• 18. The function of the ejection system in injection molding is which one of the following: (A) move
• 19. Which of the following are NOT bulk deformation processes: (A) impact extrusion, (B) deep drawin
• 20. The average flow stress is the flow stress multiplied by which of the following factors: (A) n,
• 21. Which of the following are NOT advantages and characteristics of hot working relative to coldwor
• 22. Which of the following rolling mill types are associated with relatively small diameter rolls in
• 23. Which of the following operations are closely related to open-die forging: (A) cogging, (B) flas
• 24. Theoretically, the maximum reduction possible in a wire drawing operation, under the assumnption
• 25. Springback in a sheet-metal-bending operation is the result of which one of the following: (A) e
• 26. Which of the following major adverse effect can NOT be occurred in cutting temperature rising: (
• 27. Which of the following is greater than the depth of cut, the value of r (cutting ratio) is alway
• 28. Which of the following method can reduce the build -up edge (BUE): (A) decrease the cutting spee
• 29. Which of the following type of metal chips is commonly observed: (A) Continuous, (B) Built-up ed
• 30. Which of the following force acts in the direction of the cutting speed, and supplies the cnergy
• 31. Which ofthe following item can NOT be used to measure cutting forces: (A) force transducer,(B)ac
• 32. A typical lathe can perform which of the following operations: (A) Facing, (B) Cutting, (C) Bori
• 33. Which of the following tool geometry mainly affects the cutting forces in a turning process: (A)
• 34. Which of the following is an operation used to make an existing boring hole dimensionally more a
• 35. Which of the following method is cutting starts at the surface of the workpiece where the chip i
• 36. Which of the following will NOT occur due to temperature rising in grinding: (A) adversely affec
• 37. Grinding ratio is defined as the proportion between volume of wheel wear and which one of the fo