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ASSIGNMENT 2-Cont. - 14018_713
ASSIGNMENT 3 - 14018_715

Aviation Structural Mechanic (H&S) 3&2 - How airplanes are built and how to maintain them
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2-50. Relative to handling and storage of 2-51. 2-52. 2-53. sheets of plastic, which of the following statements is NOT correct? 1. Plastic sheets should be stored in bins that are tilted away from the vertical 2. Plastic sheets should be stored in a cool,    ventilated area in order to reduce the potential fire hazard 3. If the plastic sheets are stored horizontally, the smaller sheets should be stacked upon the larger ones 4. If the plastic sheets are placed on a table prior to shaping,    the table must be cleaned thoroughly If long or improper storage has caused the adhesive to deteriorate on a sheet of plastic, the masking paper should be moistened with what chemical? 1. Ether 2. Xylene 3. Glass cleaner 4. Aliphatic naphtha What primary characteristic makes reinforced plastic a particularly ideal material from which to construct radomes? 1. Dielectric property 2. Ease of fabrication 3. High strength/weight ratio 4. Resistance to mildew and rot Which of the following resins are thick,    syrupy liquids used in the manufacture of reinforced plastic? 1. Pressure resin 2. Heat-pressure resin 3. Contact-pressure resin 4. Noncontact-pressure resin 2-54. In various aircraft structural components, which of the following materials is replacing and supplementing metallic materials? 1. Rubber material 2. Plastic material 3. Sandwich material 4. Composite material 2-55. Numerous combinations of composite materials are being studied and used, but because of cost, the trend is toward a minimum use of which of the following materials? 1. Boron/epoxy 2. Kevlar®/epoxy 3. Aluminum/epoxy 4. Graphite/epoxy 2-56. Advanced composites have given composite materials structural properties superior to the metal alloys they have replaced? 1. True 2. False 2-57. What are the two broad classes of sandwich components? 1. Radomes and doors 2. Stabilizer and radomes 3. Radomes and structural 4. Stabilizer and trim tabs 10







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