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Author Question: A device used to prevent the reverse flow of a liquid is a(n) _____. a. flow switch b. ... (Read 68 times)

lilldybug07

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on: Jul 24, 2018
A device used to prevent the reverse flow of a liquid is a(n) _____.
 
  a. flow switch
  b. pressure-relief valve
  c. check valve
  d. evaporator pressure regulator

Question 2

To close the control circuit and start a system, a remote bulb thermostat depends on a _____.
 
  a. bimetal strip that expands or contracts
  b. refrigerant-filled bulb that responds to temperature changes
  c. mercury-filled bulb that responds to temperature changes
  d. thermocouple that changes its resistance as the temperature changes


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karlss

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

c

Answer to Question 2

b


lilldybug07

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Reply 2 on: Jul 24, 2018
:D TYSM

jackie

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Reply 3 on: Yesterday
Excellent

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