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Illinois State Plumbing (Journeyman / Master / Plumbing Inspector) 2026-2027 Frequently Tested Exam Questions With Verified Multiple Choice and Conceptual Actual 100% Correct Detailed Answers Guaranteed Pass!!Current Update!!
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--130December 20252025/2026A+
- Illinois State Plumbing (Journeyman / 
Master / Plumbing Inspector) 
Frequently Tested Exam Questions With 
Verified Multiple Choice and Conceptual 
Actual 100% Correct Detailed Answers 
Guaranteed Pass!!Current Update!! 
 
1. Which chemical substance prevents oxides from forming on freshly cleaned 
copper before soldering or brazing? 
A. Solvent 
B. Primer 
C. Flux 
D. Adhesive 
Answer: C. Flux 
 
2. Where is an escutcheon ring used? 
A. Inside the wall cavity 
B. At the valve b...
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