2. High -alloy steel is also called .: stainlesssteel
3. Most residential, commercial, and industrial gas systems that use CSST
operate at a pressure
of .: 7" of watercolumn
4. The standard thread on steel pipe is V -shaped, with an angle of .: 60
degreesand a taperof 1⁄32"per inch of length
5. For large jobs involving grooved pipe, pipe sections are usually .: prefab-
ricated with grooves before delivery
6. Steel pipe is usually connected with fittings that are .: threaded
7. CSST consists of a flexible stainless steel tube, often encased in a jacкet of
.: PE plastic
8. To protectagainst abrasiveand corrosivematerials,galvanizedpipe is coat-
ed with .: zinc
9. When connecting multiple appliances to a fuel -gas system using CSST, what
should the
plumbermaкe sure of?: Use only pipe and fittings that are all the samesize.
10. What is a 21' long length of pipe called?: Random length pipe
11. Compared to rigid pipe, CSST is .: lighter
12. The numberof usablethreadson a 3/4" pipe is .: 8
13. When fastening a piping system to concrete, use .: anchors
14. Tapering the threaded end of a pipe is needed : to create a pressure-proof joint
when tightly threaded together
15. The basic components of hangers are .: pipe attachments, connectors, and structural
attachments
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