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Author Question: At 40, a HAFOE (high air flow with oxygen enrichment) mask is operating with an air-to-oxygen ... (Read 89 times)

jeatrice

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on: Jul 16, 2018
At 40, a HAFOE (high air flow with oxygen enrichment) mask is operating with an air-to-oxygen entrainment ratio of:
 A) 1:1
  B) 2:1
  C) 3:1
  D) 4:1

Question 2

HAFOE (high air flow with oxygen enrichment) masks operate using:
 A) the venturi principle
  B) Bernoulli's principle
  C) viscous shearing and vorticity
  D) none of the above


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Toya9913

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Reply #1 on: Jul 16, 2018
Answer to Question 1

C

Answer to Question 2

C


jeatrice

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Reply 2 on: Jul 16, 2018
Thanks for the timely response, appreciate it

JaynaD87

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Reply 3 on: Yesterday
Excellent

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