NC Plumbing
Indiana Institute of Technology
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NC Plumbing Practice Test 2 Questions And Answers With Verified Solutions
- Exam (elaborations) • 4 pages • 2023
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NC Plumbing Practice Test 2 Questions And Answers With 
Verified Solutions 
When using copper for vent flashing material, the copper should weigh____ 8oz/sq. 
ft 
The minimum depth of lead in a caulked joint is___ 1" 
Air and water tests of drainage and vent systems require that the water or air pressure 
be maintained at a constant level for___minutes 15 
1 1/2" PVC-DWV installed in a residential building must be supported ___in the vertical. 
Every 10' 
The trap seal is the maximum vertical...
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