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Author Question: In general, which is denser: humid air or dry air? A) Air density is not affected by humidity. ... (Read 80 times)

craiczarry

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In general, which is denser: humid air or dry air?
 
  A) Air density is not affected by humidity.
  B) Humid air
  C) Dry air
  D) Air density peaks at 50 percent relative humidity and decreases both above and below 50 percent relative humidity.

Question 2

How do technicians increase the blower speed in a belt-driven motor?
 
  A) They loosen belt tension. B) They tighten belt tension.
  C) They decrease pulley spread. D) They increase the pulley spread.



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kilada

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Answer to Question 1

C

Answer to Question 2

C





 

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