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Author Question: What materials are boilers commonly made from? A) Most boilers are either cast iron or brass B) ... (Read 82 times)

lak

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on: Jul 26, 2018
What materials are boilers commonly made from?
 
  A) Most boilers are either cast iron or brass B) Most boilers are either aluminum or copper
  C) Most boilers are either steel or aluminum D) Most boilers are either cast iron or steel

Question 2

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


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kthug

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Reply #1 on: Jul 26, 2018
Answer to Question 1

D

Answer to Question 2

D


lak

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Reply 2 on: Jul 26, 2018
Excellent

okolip

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Reply 3 on: Yesterday
Great answer, keep it coming :)

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