A venturi tube has an expanding radius that does not exceed: A) 5 ...

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A venturi tube has an expanding radius that does not exceed:
 A) 5 degrees
  B) 10 degrees
  C) 15 degrees
  D) 20 degrees

Question 2

High air flow with oxygen enrichment (HAFOE) masks alter oxygen concentrations by:
  I. changing nozzle size
  II. changing air entrainment port size
  III. changing oxygen liter flow into the mask
  IV. changing air liter flow into the mask
 A) I
  B) I and II
  C) I, II, and III
  D) I, II, III, and IV

[ong527]

Answer to Question 1

D

Answer to Question 2

B

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TYSM

[vickyvicksss]

Thanks for the timely response, appreciate it