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Author Question: The advantage of the backward curved centrifugal fan over the forward curved centrifugal fan is that ... (Read 73 times)

cartlidgeashley

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on: Jul 26, 2018
The advantage of the backward curved centrifugal fan over the forward curved centrifugal fan is that
 
  A) backward curved fans are normally quieter in operation
  B) backward curved fans are non-overloading
  C) backward curved fans operate at lower RPMs
  D) backward curved centrifugal fans are well suited for small airflow quantities

Question 2

Hot water heating coils should be piped
 
  A) with PVC pipe to take advantage of PVC's natural insulating ability
  B) for parallel flow so that the warmest water meets the coldest air
  C) with iron pipe for durability and strength
  D) for counter flow so that the warmest water meets the warmest air


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cclemon1

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

B

Answer to Question 2

D


cartlidgeashley

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Reply 2 on: Jul 26, 2018
Wow, this really help

bigsis44

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Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

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