Questions and Answers
What is a method of conveying ideas about the construction or assembly of objects?
Drawing
What are the three classes of working drawings?
What is a description of a single part called?
Detail Drawing
What type of drawing describes an object made up of two or more parts?
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What do installation drawings include?
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What shows the internal view of a part by cutting away a portion of the object?
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What are the types of sectional view drawings?
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What does a full section drawing show?
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What describes a half section drawing?
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What does QD stand for?
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What does a revolved section drawing illustrate?
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What illustrates a particular part of an object and is often drawn to a larger scale?
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What is the purpose of a title block in a drawing?
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What information is usually included in a title block?
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What is a list of materials and parts required for fabrication or assembly called?
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What does a bill of materials consist of?
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What is necessitated by changes in design or materials, usually listed next to the title block?
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What does a revision block contain?
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What refers to methods of attachment or construction in drawings?
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What is used to locate parts, sections, and views on large drawings?
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What is a numbering system used to locate a position on the aircraft?
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What is a location along the fuselage designated by the manufacturer called?
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What line along the aircraft's longitudinal axis is designated as the buttock or butt-line?
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Where are butt stations located?
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Vertical locations on an airplane are made in reference to what?
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What is an allowable variation from a given dimension on a drawing?
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What is the sum of the plus and minus allowance figures called?
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What indicates a surface that must be machine finished?
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What is used in drawing to accurately and correctly represent objects graphically?
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What are some of the methods used to illustrate objects graphically?
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Study Notes
Drawing Fundamentals
- Drawing serves as a method to communicate ideas about construction or assembly of objects.
Types of Working Drawings
- Working drawings consist of detail drawings, assembly drawings, and installation drawings.
Detail Drawings
- Detail drawing describes a single part of an object.
Assembly Drawings
- Assembly drawings illustrate objects composed of two or more parts, showing how the parts relate to each other, usually with accompanying detail drawings.
Installation Drawings
- Installation drawings provide all necessary information for the assembly of parts in their final installed position, detailing dimensions to locate specific components relative to others.
Sectional View Drawings
- Sectional view drawings depict internal views of a part by cutting away a portion, detailing shape and construction at the cutting plane using section or cross hatching lines.
Types of Sectional View Drawings
- Full Section: Shows complete interior construction and hidden views.
- Half Section: Displays part of the interior and part as an exterior view when the cutting plane extends halfway across the object.
- Revolved Section: Drawn directionally, illustrating the shape of the cross-section of the part.
- Removed Section: Similar to revolved sections, but illustrated separately, often at a larger scale.
Title Block
- The title block serves as a means of identification for a print or drawing, typically containing drawing number, part number, scale, firm name, and names of the draftsman, checker, and approver.
Bill of Materials (BOM)
- A bill of materials lists all materials and parts necessary for fabrication or assembly, including part number, name, material type, quality, and source.
Revision Block
- A revision block details changes in dimensions, design, or materials next to the title block, including identification symbol, date, nature of revision, and authority for the change.
Notes
- Notes refer to methods of attachment or construction, offering alternatives and modification options.
Zone Numbers
- Zone numbers aid in locating parts, sections, and views on large drawings, especially in assembly drawings. They are read from right to left along the lower border.
Station Numbers
- Station numbers are a numbering system used to locate specific positions on the aircraft along its length.
Datum
- Datum represents a reference point along the fuselage designated by the manufacturer, typically at the nose or firewall, serving as the zero reference line for further positions.
Buttock or Butt-Line
- The buttock line designates a line along the aircraft's longitudinal axis or centerline.
Butt Stations
- Butt stations are situated on the left or right sections of the aircraft.
Water Line
- Vertical reference locations on an airplane are measured against the water line.
Allowances and Tolerances
- Allowances refer to permissible variations from specified dimensions, while tolerances represent the sum of allowable figures.
Finish Marks
- Finish marks indicate surfaces that require machine finishing for improved appearance and fit, mandating that all tolerances and limits be adhered to.
Applied Geometry
- Applied geometry is used in drawing to accurately and effectively represent objects visually.
Graphical Illustration Methods
- Common methods to illustrate objects graphically include orthographic projections, pictorial drawings, diagrams, and flow charts.
Views in Object Representation
- Utilizing multiple views is essential to convey an object's size and shape accurately.
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Description
Test your knowledge on aircraft-related drawings with these flashcards. This quiz covers various types of drawings essential for construction and assembly, including working and detail drawings. Perfect for engineering students or professionals in the aviation industry.
