The Bird Mark 7AA Regulates Gas Pressure Using

question 19

Multiple Choice

The Bird Mark 7AA regulates gas pressure using:
I. single-stage reducing valves
II. magnetic attraction and gas pressure across a diaphragm
III. needle valves
IV. differential pressure transducers

• A) I and II
• B) II and III
• C) I, II, and III
• D) I, II, III, and IV

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