× Didn't find what you were looking for? Ask a question
Top Posters
Since Sunday
k
4
4
c
4
M
3
t
3
i
3
B
3
k
3
m
3
c
3
o
3
l
3
Home Q & A Board Other Fields Homework Help Trades and Apprenticeship
New Topic  
tempuser tempuser
wrote...
Go to Answer
Posts: 465
Rep: 0 0
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.
Read 26 times
3 Replies
Replies
Answer verified by a subject expert
1234124312412341243124
wrote...
#1
Top Poster
Posts: 500
Rep: 1 0
6 years ago
Sign in or Sign up in seconds to unlock everything for free
1

Related Topics

tempuser Author
wrote...
#2
6 years ago
Oh god, I was lost before coming here. Thanksss
wrote...
#3
6 years ago
Great, make sure you mark the topic solved, it hides it from other eyes Slight Smile
New Topic      
Quick Reply
Explore
Post your homework questions and get free online help from our incredible volunteers
  756 People Browsing
Start New Topic Take the Tour CoursesNew Study Tools Topics Trending Browse by Textbook
Live Chat
Related Images
  
 128
  
 1175
  
 196
Your Opinion
Previous poll results: Who will win the 2024 president election?