This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: What controls the firing of a water boiler? A) The auxiliary switch on the zone valve B) An ... (Read 26 times)

vinney12

  • Hero Member
  • *****
  • Posts: 586
on: Jul 24, 2018
What controls the firing of a water boiler?
 
  A) The auxiliary switch on the zone valve
  B) An aquastat that senses the temperature of the water in the boiler
  C) The boiler water temperature is normally maintained by the high limit and the low water cutout.
  D) A wall thermostat that senses the temperature of the house

Question 2

How can debris be flushed from a newly installed ground loop?
 
  A) By running water through the loop after connecting it to the system.
  B) By temporarily connecting the purge unit.
  C) By adding low-toxicity antifreeze to the system.
  D) By running water through the loop before connecting it to the system.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

shewald78

  • Sr. Member
  • ****
  • Posts: 340
Reply #1 on: Jul 24, 2018
Answer to Question 1

B

Answer to Question 2

D


vinney12

  • Hero Member
  • *****
  • Posts: 586
Reply #2 on: Jul 24, 2018
Thanks


shewald78

  • Sr. Member
  • ****
  • Posts: 340
Reply #3 on: Jul 24, 2018
Welcome :)


« previous next »
 

Did you know?

Amphetamine poisoning can cause intravascular coagulation, circulatory collapse, rhabdomyolysis, ischemic colitis, acute psychosis, hyperthermia, respiratory distress syndrome, and pericarditis.

Did you know?

Hippocrates noted that blood separates into four differently colored liquids when removed from the body and examined: a pure red liquid mixed with white liquid material with a yellow-colored froth at the top and a black substance that settles underneath; he named these the four humors (for blood, phlegm, yellow bile, and black bile).

Did you know?

Alzheimer's disease affects only about 10% of people older than 65 years of age. Most forms of decreased mental function and dementia are caused by disuse (letting the mind get lazy).

Did you know?

The National Institutes of Health have supported research into acupuncture. This has shown that acupuncture significantly reduced pain associated with osteoarthritis of the knee, when used as a complement to conventional therapies.

Did you know?

Methicillin-resistant Staphylococcus aureus or MRSA was discovered in 1961 in the United Kingdom. It if often referred to as a superbug. MRSA infections cause more deaths in the United States every year than AIDS.

Methicilli ...
Chinese Water Deer Chinese Water Deer
A pygmy hippopotamus rests in some water to help prevent its skin from cracking at Ueno Zoo in Japan A pygmy hippopotamus rests in some water to help prevent its skin from cracking at Ueno Zoo in Japan
Jane Goodall first observed Gombe chimpanzees chewing leaves, then dipping the chewed-up “wadge” int Jane Goodall first observed Gombe chimpanzees chewing leaves, then dipping the chewed-up “wadge” int
National Guardsmen firing into a crowd of antiwar protesters at Kent State University killed four ... National Guardsmen firing into a crowd of antiwar protesters at Kent State University killed four ...
How water is used in homes How water is used in homes
The Coastal Zone The Coastal Zone
Video: Adolescent Diabetes

For a complete list of videos, visit our video library