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13 Cards in this Set
- Front
- Back
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_____ is a method of pattern development used to develop patterns for irregular shaped objects |
Triangulation |
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____is a short cut method of layout |
Rollation development |
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The ___ of a pattern is the distance around the duct |
Stretch out |
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The vertical lines that become the corners of the duct after it is folded in a band brake are called ____ |
Brake lines |
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The ____ _____ requires no allowance to be added to the completed pattern |
Raw edge |
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The slip cleat, sometimes called the S-cleat, is approximately ____ wide |
1” |
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The drive clear is approximately _____ wide |
1 1/8” |
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The slip and drive connection requires a ____ allowance to be added to the duct connection |
1/2” |
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The standing drive connection is also called the ____ connection |
CP |
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A hammerlock is also called the |
Tap in |
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The _______ ______ is a hooked seam with a single offset |
Grooved seam |
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Of all the machine formed locks, the _______ ______ is the most common used lock in the sheet metal trade |
Pittsburgh lock |
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The duct notch, radius fitting notch and the transitional digging notch are all notches used when notching for the ______ duct connection |
Slip and drive |
