What is the CFM of air moving through an 8 in 10 induct if the ...

[amal]

What is the CFM of air moving through an 8 in  10 induct if the air velocity is 800 FPM?
 
  A) 8  10 = 80 sq in, 80/144 = 0.56 sq ft, 800/0.56 = 1,428 CFM
  B) 8  10 = 80 sq in, 800/80 = 10 CFM
  C) 8  10 = 80 sq in, 80/144 = 0.56 sq ft, 800  0.56 = 444 CFM
  D) 800 CFM

Question 2

How is the air volume affected by temperature?
 
  A) Air volume increases as the air temperature increases.
  B) Air volume is not affected by the temperature of the air.
  C) Air volume decreases as the air temperature increases.
  D) Dry air increases in volume with an increase in temperature, humid air does not.

[connor417]

Answer to Question 1

C

Answer to Question 2

A

[amal]

Gracias!

[ryansturges]

Excellent