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ASSIGNMENT 13-Cont. - 14018_775
ASSIGNMENT 13-Cont. - 14018_777

Aviation Structural Mechanic (H&S) 3&2 - How airplanes are built and how to maintain them
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13-59. Which of the following statements pertaining to aircraft stripping is NOT correct? 1. The stripper should be spread in a thin coat 2. The stripper should be applied with fiber brushes 3. The aircraft should be located outside if possible 4. The aircraft’s joints or seams in the stripping area should be masked 13-60. Paint feathering may be accomplished with all EXCEPT which of the following items? 1. 240 grit aluminum oxide cloth 2. 280 grit aluminum oxide cloth 3. 320 grit aluminum oxide cloth 4. Flap brush 13-61. After epoxy-polyamide primer is sprayed, it should be allowed to air dry for what minimum amount of time? 15 min 30 min 45 min 60 min 13-62. You mixed aliphatic polyurethane paint and did not use it for more than 3 hours. Which of following problems will occur if you try to rethin the paint? Fish eyes Dry spots only Orange peel only Dry spots or orange peel 13-63. The epoxy-polyamide topcoat is mixed in what ratio of (a) pigmented component to (b) clear resin? 13-64. To obtain excellent adhesion, elastomeric rain erosion-resistant coating, MIL-C-7439, should be allowed to dry for what minimum number of days? 1. 5 days 2. 6 days 3. 7 days 4. 8 days 13-65. When you lay out the blue border that outlines the entire design of the national insignia, the border should be what fractional part of the radius of the blue circle in width? 1/16 1/8 3/16 1/4 13-66. A pressure-feed spray gun is designed to operate at (a) what fluid volume and (b) what air pressure? 13-67. Prior to use, what component of a spray gun should be removed and treated with oil? 1. The air valve packing 2. The fluid needle spring 3. The fluid needle packing 4. The trigger bearing screw 13-68. When spraying epoxy-polyamide and polyurethane finishes, you should hold the gun at what prescribed distance from the work? 4 to 8 in. 6 to 10 in. 8 to 12 in. 10 to 14 in. 13-69. Which of the following spray gun problems causes dusting? 1. Excessive air pressure 2. Excessive fluid pressure 3. Insufficient air pressure 4. Insufficient fluid pressure 13-70. Which of the following types of sealants set and cure by evaporation of the solvent? 1. Drying sealants 2. Curing sealants 3. Pliable sealants 4. Flexible sealants 13-71. You should apply a sealant to a faying surface by what method? 72







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