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Author Question: How does a closed expansion tank work? A) It uses a flexible diaphragm with an air charge above ... (Read 82 times)

danielfitts88

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on: Jul 24, 2018
How does a closed expansion tank work?
 
  A) It uses a flexible diaphragm with an air charge above the diaphragm.
  B) The walls of the tank are made of a flexible material.
  C) The top of the tank is open to the atmosphere.
  D) Air is trapped at the top of the tank.

Question 2

How is the tubing used in ground-source systems joined?
 
  A) Flare fittings B) CPVC cement C) Threaded fittings D) Thermal fusion


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javimendoza7

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Reply #1 on: Jul 24, 2018
Answer to Question 1

D

Answer to Question 2

D


danielfitts88

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Reply 2 on: Jul 24, 2018
Wow, this really help

kusterl

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Reply 3 on: Yesterday
Excellent

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