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The Flow-Rate Control on the BirdMark 7A Ventilator Works By

Question 23

Multiple Choice

The flow-rate control on the BirdMark 7A ventilator works by:


A) adjusting magnetic attraction against a diaphragm
B) changing the size of an orifice
C) adjusting pressure on a single-stage reducing valve
D) changing the position of a needle valve

Correct Answer:

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