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Author Question: In a forced hot-water heating system, the thermal circulation of water is prevented by _____. a. ... (Read 37 times)

bobthebuilder

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on: Jul 24, 2018
In a forced hot-water heating system, the thermal circulation of water is prevented by _____.
 
  a. using small diameter water return lines
  b. using large diameter water return lines
  c. isolating the circulating pump
  d. placing a check valve in the water return line

Question 2

In a given length of pipe, if the flow rate in gallons per minute (gpm) is doubled, pressure drop _____.
 
  a. stays the same
  b. doubles
  c. quadruples
  d. increases slightly


stallen

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

d

Answer to Question 2

c


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