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Used to represent visible edges and outlines of the object being drawn. |
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Represents edges and oulines of an object that are not visible in a given view. |
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Appear only on a sectional view where the surface has been cut. Normally drawn diagonally. |
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Indicates symmetry, center points, or axes. Consists of alternate long and short dashes. |
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Denotes the extent of the dimension when used in conjunction with arrowheads. |
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Extends the surface or point away from the view for the purpose of dimensioning |
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Drawn diagonally, it directs a dimension or note to the area where it applies. Normally terminates with an arrowhead, but may terminate with a dot. |
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Shows where the imaginary cutting takes place to create a sectional view. May be a series of long dashes, or alternately, two short dashes between single long dashes. Arrowheads indicate the direction of sight. |
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Used in conjunction with removed views to show where the view would normally appear. Arrowheads indicate the direction of sight. |
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Terminates a view to conserve space and avoid congestion. Also separates internal and external features with broken-out sections. |
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Allows removal of a long central portion of an object to shorten a view. Normally used in pairs. |
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Represents the outline of an adjacent part; shows alternate position of a given part; or replaces repetitive detail, such as spring coils, gear teeth, threads, etc. Drawn with 2 short dashes between single long dashes, but thinner than the cutting/viewing-plane line. |
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Used to indicate an area or portion of a surface that is to receive special treatment. |
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