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Questions and Answers
What is considered as foil or leaf in the context of sheet metal?
What is considered as foil or leaf in the context of sheet metal?
- Thick plates
- Flat pieces
- Coiled strips
- Extremely thin sheets (correct)
How is sheet metal thickness commonly specified in the U.S.?
How is sheet metal thickness commonly specified in the U.S.?
- By ounces
- By inches
- By gauge (correct)
- By millimeters
What does the gauge number indicate in relation to sheet metal thickness?
What does the gauge number indicate in relation to sheet metal thickness?
- The larger the gauge number, the thicker the metal
- The smaller the gauge number, the thinner the metal
- The gauge number is unrelated to thickness
- The larger the gauge number, the thinner the metal (correct)
How is copper thickness measured?
How is copper thickness measured?
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How are the coils of sheet metal formed?
How are the coils of sheet metal formed?
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Study Notes
Sheet Metal Basics
- In the context of sheet metal, a foil or leaf is considered a thin sheet with a thickness less than 0.0079 inches (0.2 mm).
Thickness Specification
- In the U.S., sheet metal thickness is commonly specified using a gauge system, where a lower gauge number indicates a thicker sheet.
Gauge System
- The gauge number indicates the thickness of the sheet metal, with each gauge number representing a specific thickness.
Copper Thickness
- Copper thickness is measured in ounces (oz), with a higher number indicating a thicker sheet.
Coil Formation
- Coils of sheet metal are formed through a process of rolling, where a large slab of metal is rolled into a continuous coil shape.
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