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21 Cards in this Set
- Front
- Back
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An 8 inch (200mm) tube will have an outside diameter equal to an 8 inch pipe. |
False |
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What are the three main categories of tubing |
Structural Mechanical Pressure |
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How is structural tubing sized |
Outside measurement Wall thickness |
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Mechanical tube is designed to carry fluids under pressure |
False |
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The BWG gage tube wall thickness closest to 1/8 inch (3mm) is |
11 |
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Coiled aluminum tubing is generally supplied in thickness up to 3/8 inch (9.5mm) |
False |
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Tube K, L, and M are sized by the actual outside diameter measurement |
False |
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What is the outside diameter of a 1 inch (25mm) type K tube |
1 1/8 inches (28.575mm) |
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What is the easy way to determine the O.D. of a type K, L, or M tube |
Add 1/8 inch (3.175mm) to the nominal size |
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With reference to copper tube what do the following abbreviated letters stand for |
ACR - Air Conditioning and Refrigeration GP - General Purpose DWV - Drainage Waste and Vents |
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Tube K, L, and M are only available in coils of soft copper |
False |
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State the colour code for each copper type |
K - GREEN L - BLUE M - RED DWV - YELLOW |
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What are the four major groupings for carbon steel and or stainless steel tubing |
Boiler and superheater tube Heat exchanger and condenser Still tube General purpose tube |
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What is the thinnest wall thickness available for a 1 inch (25.4mm) condenser tube |
1/16 inches (.89mm) |
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What is the purpose of steel tubing |
It can withstand temperatures higher externally than the internal fluid |
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Name two special application tubes |
Copper brazed steel tube Bundled metallic Plastic tube |
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Which type of tube bundle is best suited for application requiring frequent bends and turns |
Spiral lay bundled |
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The suggested max. allowable working pressure of a 1/4 inch (6.4mm) O.D. nylon tube is |
810 psi (5.58 MPa) |
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Compression type tube benders are usually limited to what size of tube |
3/4 inch (19mm) |
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What is the purpose of the placement link on a hand tube bender |
Indicates where to place the measured mark for the required bend |
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What is the bending gain of a 1/2 inch (12.7mm) tube bent 90 degrees |
5/8 inch (16.3mm) |
