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tempuser tempuser
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6 years ago
What kind of expansion tank must be installed above the highest terminal unit?
 
  A) diaphragm-type B) closed-type
  C) pressure-relief type D) open-type

 Q. 2

What is the purpose of the zinc rod used in steel boilers?
 
  A) It acts as a flame safety device
  B) It prevents corrosion by reacting with corrosive elements before they attack the boiler
  C) It acts as an electrical ground for safety purposes
  D) It cycles the burner by sensing the water temperature

 Q. 3

The highest available output for a water boiler is
 
  A) 500,000 BTU. B) 300,000 BTU. C) 50,000,000 BTU. D) 30,000,000 BTU.
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1234124312412341243124
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6 years ago
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tempuser Author
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#2
6 years ago
Oh god, I was lost before coming here. Thanksss
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#3
6 years ago
Great, make sure you mark the topic solved, it hides it from other eyes Slight Smile
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