Term
| What are schematic diagrams generally used for? |
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Definition
| Mainly for troubleshooting |
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Term
| How many views may be required to determine the shape of an object when reading an aircraft drawing? |
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Definition
| One, two and three view drawings are most commonly used |
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Term
| What are one view drawings used for? |
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Definition
| Objects of uniform thickness, such as gaskets, shims and plates |
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Term
| What kind of information is contained in the title block of a blueprint? |
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Definition
Drawing number
Name of the part or assembly
Scale and Date
Name of the firm
Name of the draftsmen
Checker and approving official |
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Term
| What is a bill of material associated with in an aircraft blueprint? |
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Definition
| A list of materials and parts necessary for the fabrication or assembly of a component or system |
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Term
| Define clearance as used on aircraft blueprints. |
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Definition
| A dimension allowable between parts |
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Term
| Why are dimensions used, and how are they shown on aircraft drawings? |
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Definition
| Dimensions are used to determine the size of an object. Dimension lines are solid, usually broken at midpoint for insertion of measurement indications |
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Term
| Define tolerance as used in aircraft blueprints. |
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Definition
| Tolerance is the sum of the plus and minus allowance figures |
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Term
| What types of lines are used on mechanical drawings to show alternate position? Hidden views? Center lines? |
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Definition
| Phantom lines show alternate positions, one long and two short. Hidden lines are short dashes evenly spaced. Center lines are alternate long and short dashes |
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Term
| Where and how are aircraft drawing changes identified? |
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Definition
| Changes are usually listed as revisions in ruled columns, either adjacent to the title block or at one corner of the drawing |
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Term
| Why are symbols used when drawing aircraft blueprints? |
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Definition
| Symbols are the shorthand of drawing and portray the characteristics of a component with a minimum amount of drawing |
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Term
| How may an aircraft drawing of a part be drawn to bring out pertinent details? |
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Definition
| By drawing a detailed view at a larger scale than the principle view |
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Term
| What is an orthographic projection? |
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Definition
| It is a way of illustrating an object in a drawing showing different views at right angles to each other such as front and right side views |
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