Term
| What is a potting compound used for in bonded honeycomb repair? |
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Definition
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Term
| Give example of a self-plugging mechanical lock rivet. |
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Definition
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Term
| What is done with the rivet head stem when a self-plugging (friction lock) rivet is installed? |
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Definition
| Pulled until snapped and trimmed flush with the head |
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Term
| What type of tools are required to install cherrylock rivets? |
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Definition
| Hand or power operated tool equipped with mechanical pulling head |
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Term
| What factors are used to determine setback? |
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Definition
| Bend radius and thickness of material |
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Term
| What type of weathering damage may be found on metal aircraft? |
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Definition
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Term
| What calculation must be made when bending sheet metal! |
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Definition
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Term
| What is done to the damaged area in bonded honeycomb? |
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Definition
| The damaged area must be removed |
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Term
| What will cause crazing in transparent plastic panels/windshields? |
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Definition
Stress, improper handling and harmful solvents |
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Term
| Why dimple for flush rivets instead of counter-sink? |
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Definition
| It depends on the thickness of the sheet |
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Term
| What is the spacing and edge distance for protruding head rivets? |
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Definition
| 3D for spacing and 2D for edge distance |
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Term
| Determine total length of a solid rivet for installation. |
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Definition
| 1-1/2 times the diameter greater than total thickness of the sheets to be joined |
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Term
| What is the purpose of lightening holes cut in rib sections? |
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Definition
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Term
| What kind of loads are rivets designed to withstand? |
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Definition
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Term
| Describe rivet head markings for A, B, D, AD, and DD rivets. |
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Definition
Plain (1100)
Cross (5056)
Tit (2024)
Dimple (2117)
Double dash (2017) |
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Term
| What must be done when two bends intersect? |
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Definition
| Relief holes are drilled at the intersection |
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Term
| What should be done to twist drills that are to be used for drilling completely through Plexiglas? |
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Definition
| They should be modified to a 60 degree tip angle, the cutting edge to a zero rake angle, and the back lip clearance angle increased to 12 to 15 degrees |
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