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    Welding and Metal Fabrication
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    Exam 7: Welding Shop Practices
  5. Question
    High-Pressure Gas Cylinder Valves Have Two Valve Seals: a Main
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High-Pressure Gas Cylinder Valves Have Two Valve Seals: a Main

Question 9

Question 9

Multiple Choice

High-pressure gas cylinder valves have two valve seals: a main seal and one ____ to prevent gas leaks.


A) rubber seal
B) back seal
C) tight seal
D) seating seal

Correct Answer:

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