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mayismqz mayismqz
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6 years ago
Medium and large commercial buildings typically use
 
  A) low-pressure steam boilers. B) low-pressure hot-water boilers.
  C) medium- or high-pressure steam boilers. D) medium- or high-pressure hot-water boilers.

 Q. 2

Pumps for hydronic heating systems are usually
 
  A) centrifugal pumps B) diaphragm pumps C) gear pumps D) piston pumps
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EEEEEricaEEEEErica
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6 years ago
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mayismqz Author
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6 years ago
TY
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6 years ago
My pleasure
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