Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Why should the grip length of a bolt be a few thousandths off an inch shorter than the material thickness? | To prevent bottoming of the nut
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| What factors do you use to determine the length of a bolt? | 1) Grip length 2)Threaded Parts
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| What are two methods for identifying bolts? | 1) Bolt Head Marking 2) Part number designation
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| Where do you look if you cannot identify the code marked on the head of a *bolt*? (Hint: What is the hardware T.O?) | T.O 1-1A-8
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| What kind of information does the part number designation give you about a bolt? | 1) Type of bolt 2) Diameter 3) Length of grip 4) If the head or shank is drilled
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| Why must bolt holes not be oversized or elongated? | The bolt will not carry its shear load, causing the part to be deformed.
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| When can you drill or ream a hold to accommodate an oversized diameter or the next-larger bolt? | If the larger hole doesn’t weaken the part.
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| How can you avoid stripping the threads of a bolt during installation? | Torque all nuts to proper specifications
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| How can you remove stuck screws? | By using fastener removal tools or fastener extractors. 1) Screw knocker 2) Jay Bar 3) Drilling 4) Easy-outs.
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| Which screw removal is primarily designed for use in flat surfaces? | Fastener removal tool
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| When using a fastener extractor, what is the first step in removing a screw? (Hint: What do you do when the screw head has been stripped)? | Ball file & drill a hole in the center
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| How should you tap a screw punch (Screw Knocker) when removing a stuck screw? Why? | Lightly; Heavy blows can cause you to strip the screw head & damage the structure.
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| How can you identify a nut that has no identification Markings? | 1) Part Number 2) Color 3) Thread Size 4) Construction 5) Luster
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| What are the two types of self-locking nuts that you are most likely to use in an aircraft? | 1) Prevailing-torque 2) Free-Spinning
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| What type of wrench is preferred for nut installation? | Socket & Box-End Wrenches
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| How can you prevent fatigue failure in bolted assemblies? | By sufficiently tightening the bolt & applying proper preload or clamping force
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| How can you reduce the tendency of parts to creep or shift when installing bolts? | By following the proper torque specifications
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| What factors can alter standard torque chart values? | Thread roughness, paint, lube, hardening, & plating
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| What are the three main parts of a camloc fastener? | Stud Assembly, grommet, & receptacle
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| What should you NEVER do to a camloc stud? | Disassemble it.
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| How can you determine the grip length of a camloc stud? | By the number stamped on the head of the stud
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| What should you use to replace a rigid receptacle? | A floating type receptacle
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| What should you do after you punch the hole for the grommet? | Deburr & sand the edges smooth
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| If it is required, when do you install a stud retaining ring? | When the stud is installed in the grommet
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| What is the last step of a camloc installation? | Check the grip length of the stud
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| What are the three main parts of an airlock fastener? | Stud, cross-pin, & receptacle
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| How can you determine the grip length of an airlock stud? | By checking the head marking on the stud
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| How do you determine the proper stud length of an airlock stud? | Refer to T.O. 1-1A-8 & the Aircraft specific T.O.
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| What is the final step in airlock installation? | Checking the alignment & fastening the airlock stud
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| How can you correct misalignment of an airlock fastener? | 1) Fastening the studs in a different order. 2) Install a longer stud. 3) Make the stud hole slightly larger. 4) Replace rigid type receptacle. 5) Stud & cross-pin.
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Created by:
Jtball101