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GENERAL 02
Aircraft Drawing
| Question | Answer |
|---|---|
| What kind of information is contained in the title block of a blueprint? | A drawing number; the name of the part or assembly; scale; date; the name of the firm; and the name or initials of the draftsman, checker, and approving official |
| What types of lines are used on mechanical drawings to show Alternate Positions, Hidden views, & Center lines? | Phantom lines show alternate positions: one long and/two short. Hidden lines are short dashes evenly spaces, Center lines are alternate long and short dashes |
| How are Dimension Lines shown on aircraft drawings? | Dimension lines are solid, and usually broken at midpoint for insertion of measurement indications |
| Where and how are aircraft drawing changes identified? | Changes are usually listed as revisions in ruled columns, either adjacent to the title/block or at one corner of the drawing |
| Define tolerance as used on aircraft blueprints. | Tolerance is the sum of the plus and minus allowance figures. |
| Define clearance as used on aircraft blueprints. | Clearance is a dimension allowable between parts |
| What is a bill of material associated with aircraft blueprints? | A list of materials and parts necessary for the fabrication or assembly of a component or system |
| How many views may be required to determine the shape of an object when reading an aircraft drawing? | One-, two-, and three-view drawings are most commonly used |
| What is the purpose of one-view drawings? | They are used for objects of uniform thickness, such as gaskets, shims, and plates |
| What are schematic diagrams generally used for? | They are mainly used for trouble-shooting. |
| What is an orthographic projection? | It is a way of illustrating an object in a drawing showing different views at right angles to each other |
| Describe the purpose and use of zone numbers on aircraft drawings. | Zone numbers on drawings are like the numbers and letters printed on the borders of a map. They locate a point. To find a point, mentally draw horizontal and vertical lines from the letters and numerals specified; the point where these lines intersect is |
| Why are symbols used when drawing aircraft blueprints? | To convey characteristics of a component |
| How may an aircraft drawing of a part be drawn to bring out pertinent details? | By drawing a detailed view at a larger scale than the principle view |
Created by:
Chisum
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