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17 Cards in this Set
- Front
- Back
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What type of lines are used on aircraft drawings to indicate hidden views, center lines, and alternate position lines? |
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How are dimension lines shown on aircraft drawings? |
Dimension lines are solid, and usually broken at midpoint for insertion of measurement indications I-------------27"------------I |
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What is a sketch for a repair? |
It is a basic drawing that shows specific information and provides minimum detail needed to manufacture a part. |
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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. |
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What type of drawing is most helpful in troubleshooting a system? |
A schematic. |
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Define "tolerance" as used in aircraft drawings. |
The difference between the plus and minus allowable dimension of a part. (+/- of .005 = .010) |
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Define "clearance" as used in aircraft drawings. |
Clearance is the dimension given for the space between parts. |
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What is a fuselage station number? |
It is the distance from the datum measured inches along the longitudinal axis. |
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What information is given in the title block of a blueprint? |
The drawing number, the name of the part or assembly, the scale, the date, the name of the firm, the name of the draftsman, the checker, and the approving official. |
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Where is the title block usually found on an aircraft drawing? |
In the lower right corner. |
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Why are dimensions used, and how are they shown on the aircraft drawings? |
Dimensions are solid narrow lines, broken at midpoint for the insertion of measurements. They are used to indicate the size of an object. |
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How can a change to an aircraft drawing be identified? |
By its revision number (A, B, C, etc...). The revision letters are usually listed in a table next to the title block or in the corner of the drawing. |
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What is the "bill of materials" associated with aircraft blueprints? |
It is a list of materials and parts necessary for fabrication or assembly of component or system. |
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Why are symbols used when drawing aircraft blueprints? |
Symbols are a type of shorthand used in drawings. They express the characteristics of a component with a minimum amount of drawing or writing. |
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What is an orthographic projection? |
A way of illustrating an object in a drawing, by showing different views at right angles to each other, such as front and side views. |
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How many views are required to determine the shape of an object? |
Three views: Front, Top, and Right side. |
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What is the purpose of one view drawings? |
They are used for objects of uniform thickness, such as gaskets, shims, and plates. |
