1. ____________ is another name for investment casting.
Answer
Correct Answer:
Lost-wax process
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2. A/An _____________ is a document that accounts for the output of production and tracing the sequence of operations of a batch of manufactured components
Answer
Correct Answer:
route sheet
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3. In which of the following fields are computer graphics applied?
Answer
Correct Answer:
All of these
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4. In which plastic shaping process is parison formed?
Answer
Correct Answer:
Blow molding
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5. Which of the following constitute guidelines laid down for Design for Manufacturing and Assembly?
Answer
Correct Answer:
Use common parts across product lines Use modular design Minimize use of flexible components Design parts with tolerances that are within process capability Use standard commercially available components Design for ease of part fabrication
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6. Alpha symmetry is the rotational symmetry of a part about:
Answer
Correct Answer:
an axis perpendicular to its axis of insertion.
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7. In CAD, which direction is chosen to begin measurement of angles?
Answer
Correct Answer:
3 o'clock
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8. Which of the following factors affect the tool life of a cutting tool?
Answer
Correct Answer:
Cutting speed
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9. Scaling objects in CAD makes them:
Answer
Correct Answer:
both bigger and smaller.
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10. ______ is an approach used in product development in which functions of design engineering, manufacturing engineering and other functions are integrated to reduce the elapsed time required to bring a new product to the market.
Answer
Correct Answer:
Concurrent Engineering
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11. Which of the following applications is associated with open-die forging?
Answer
Correct Answer:
Cogging
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12. Which of the following chemicals is associated with alkaline cleaning?
Answer
Correct Answer:
Sodium hydroxide
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13. Which of the following metals are used to make solder alloys?
Answer
Correct Answer:
Zinc
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14. Which of the following is NOT one of the steps involved in the powder metallurgy process?
Answer
Correct Answer:
All of the above steps are involved in the process.
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15. Which of the following formulas helps determine the minimum form height for sheet metal use if D, T and R are given as minimum distance, material thickness and bend radius respectively?
Answer
Correct Answer:
D = 2.5T + R
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16. Groove welds are related to which of the following joint types?
Answer
Correct Answer:
Bubb
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17. Hard facing utilizes which one of the following basic processes?
Answer
Correct Answer:
Arc welding
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18. Which of the following types of materials are NOT suitable for stamping?
Answer
Correct Answer:
Metallic materials
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19. A jig differs from a fixture in that it ______ while a fixture does not.
Answer
Correct Answer:
guides the tool to its correct position
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20. Which of the following are alternative names for thermal spraying?
Answer
Correct Answer:
Metallizing Metal spraying
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21. Which of the following products are produced by extrusion?
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22. Which of the following machine is appropriate for cutting large diameter holes, holes with very close tolerance, and to do shaped holes?
Answer
Correct Answer:
Wire EDM
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23. Which of the following are geometric modeling schemes used in CAD systems?
Answer
Correct Answer:
Wire frame mode Boundary representation model
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24. Which of the following facts is true regarding the V/A ratios of the riser and the casting in a sand casting mold?
Answer
Correct Answer:
None of these.
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25. Spring index should have a value above ______ and below ______.
Answer
Correct Answer:
3, 20
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26. Which one of the following rapid prototyping technologies uses solid sheet stock as the introductory material?
Answer
Correct Answer:
Laminated object
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27. Another name for the calorizing process is:
Answer
Correct Answer:
Alonizing
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28. Which of the following is a high-energy-rate forming process?
Answer
Correct Answer:
Explosive forming
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29. Which of the following is the most commonly employed casting process?
Answer
Correct Answer:
Sand casting
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30. Which of the following operations is/are carried out in sand casting once the casting is removed from the mold?
Answer
Correct Answer:
All of these
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31. Which of the following kinds of defects can occur during the injection molding process?
Answer
Correct Answer:
Flash
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32. Which of the following describes the relationship between packing factor and porosity in the case of metallic powders?
Answer
Correct Answer:
Packing factor = 1 - Porosity
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33.
Which of the following correspond to the etch factor in chemical machining?
Here, S = specific removal rate, C = depth of cut, I = current, T = time, and U = undercut.
Answer
Correct Answer:
U/C
Anisotropy
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34. Objects joined together by way of adhesive bonding are called:
Answer
Correct Answer:
adherend
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35. The minimum temperature used in the plasma arc cutting process is:
Answer
Correct Answer:
20000°F
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36. The _______________ process uses mechanical energy as its main energy source.
Answer
Correct Answer:
conventional milling
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37. Which stress parameter is used to calculate the maximum force in a forging operations?
Answer
Correct Answer:
Final flow stress
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38. The number of points essential to define the rectangle command in CAD is:
Answer
Correct Answer:
2
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39. Which of the following constitute the principal methods of applying powder coatings?
Answer
Correct Answer:
Fluidized bed Electrostatic spraying
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40. Which of the following is NOT an equipment used for abrasive blasting?
Answer
Correct Answer:
Sample blast equipment
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41. Carburizing incorporates which one of the following?
Answer
Correct Answer:
Diffusion
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42. The __________ process is known to achieve the highest material removal rate.
Answer
Correct Answer:
water jet cutting
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43. The DFA(Design for Assembly) index is given as:
Answer
Correct Answer:
Theoretical maximum assembly time÷Actual assembly time
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44. Which tool is used in steel hot rolling of plate?
Answer
Correct Answer:
Slab
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45. A riser that is completely contained in the metal casting mold is called:
Answer
Correct Answer:
blind riser
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46. A heat source of ______________ is the most appropriate to melt the weld metal by supplying least amount of energy.
Answer
Correct Answer:
high power density
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47. Identify the advantages of sand castings over die castings from the points given below.
Answer
Correct Answer:
Sand castings can vary greatly in wall thickness, whereas die castings have a uniform wall thickness. Sand castings are wider in gauge than die castings. Sand castings are stronger than die castings by virtue of the material used.
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48. A feeler gauge is a tool which is used to measure:
Answer
Correct Answer:
gap widths between two parts or surfaces.
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49. In the context of the metal stamping process, which of the following operations produces one or more plane surfaces that are at an angle to the original or flat plane of the blank?
Answer
Correct Answer:
Forming
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50. Which of the following ways can be used in product designing so that they can be less environmentally damaging and less costly to produce?
Answer
Correct Answer:
f.a, b, c and d
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51. In CAD, polar coordinates are adopted for drawing which of the following?
Answer
Correct Answer:
Angled lines
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52. Which of the following are major components of a CNC machine?
Answer
Correct Answer:
Machine too Machine Control Unit
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53. Which one of the following casting metals is most important economically?
Answer
Correct Answer:
Cast iron
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54. The acronym DTP stands for ______
Answer
Correct Answer:
Desktop publishing
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55. Which of the following are types of forging operations?
Answer
Correct Answer:
Fullering Swaging Upsetting
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56. In a machining operation, the metal is removed by:
Answer
Correct Answer:
shearing it across a zone.
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57. __________ means that factors relating to the product after it has been manufactured should be taken into consideration in design.
Answer
Correct Answer:
Design for life cycle
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58. Which casting method is followed for creating dental crowns?
Answer
Correct Answer:
Investment casting
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59. Which of the following processes is/are used to produce cold-finished steel from hot-rolled material?
Answer
Correct Answer:
(a) & (c)
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60. Which machine tool is used in sheet metal working?
Answer
Correct Answer:
Stamping press
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61. Which of the following is NOT a manufacturing requirement?
Answer
Correct Answer:
Standards
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62. Which of the following processes can be carried out using CNC equipment?
Answer
Correct Answer:
All of the above
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63. Identify the soldering methods that are NOT applied with brazing.
Answer
Correct Answer:
Soldering iron Dip soldering
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64. A ______ is an irregularity in the metal casting process that must be corrected or removed or the casting must be rejected.
Answer
Correct Answer:
casting defect
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65. Which of the following powder shapes is likely to have the lowest interparticle friction?
Answer
Correct Answer:
Spherical
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66. Sheet metal working operations are mainly carried out as:
Answer
Correct Answer:
cold working
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67. Another name for indirect extrusion is ______.
Answer
Correct Answer:
backward extrusion
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68. The ____________ process is a type of fusion welding.
Answer
Correct Answer:
resistance welding
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69. Die casting involves usage of which of the following metals?
Answer
Correct Answer:
Tin
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70. Which design characteristics are easy to achieve by pressing and sintering of metal powders?
Answer
Correct Answer:
Vertical stepped holes
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71. In the context of computer graphics, WCS stands for:
Answer
Correct Answer:
World Coordinate System
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72. Which of the following method is used for the production of gear using generation process?
Answer
Correct Answer:
Hobbing
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73. Which material is the mold in plaster mold casting made of?
Answer
Correct Answer:
CaSO4-H2O
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