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Author Question: What is the airflow through a 2 foot by 3 foot hole if the air velocity is 100 feet per minute? ... (Read 72 times)

jake

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on: Jul 26, 2018
What is the airflow through a 2 foot by 3 foot hole if the air velocity is 100 feet per minute?
 
  A) 2  3 = 6 sq feet; 6  100 FPM = 600 CFM B) 2 + 3 = 5 sq feet; 5  100 FPM = 500 CFM
  C) 2  3 = 6 sq feet; 100 FPM / 6 = 17 CFM D) 100 CFM

Question 2

Most zone dampers in zoning systems _____.
 
  a. are powered open and spring-return closed
  b. are powered closed and spring-returned open
  c. have four distinct positions
  d. must serve more than one diffuser


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momtoalll

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Reply #1 on: Jul 26, 2018
Answer to Question 1

A

Answer to Question 2

b


jake

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Reply 2 on: Jul 26, 2018
Excellent

mohan

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Reply 3 on: Yesterday
:D TYSM

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