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Author Question: How does an energy recovery wheel improve system efficiency? A) by moving some of the system ... (Read 68 times)

frankwu

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on: Jul 26, 2018
How does an energy recovery wheel improve system efficiency?
 
  A) by moving some of the system refrigerant with a turbulator
  B) by reducing the condenser head pressure
  C) by transferring heat between the ventilation air and the exhaust air
  D) by keeping the evaporator clean

Question 2

Cavitation in a water control valve can be caused by
 
  A) installing the control upstream of the coil instead of downstream
  B) extremely low pressure drop through the valve
  C) installing the control downstream of the coil instead of upstream
  D) excessively high pressure drop through the valve


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Ksanderson1296

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

C

Answer to Question 2

D


frankwu

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Reply 2 on: Jul 26, 2018
YES! Correct, THANKS for helping me on my review

bdobbins

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Reply 3 on: Yesterday
Great answer, keep it coming :)

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