This topic contains a solution. Click here to go to the answer

Author Question: Zone control is accomplished in hydronic systems using thermostats that activate: A) A zone ... (Read 58 times)

rachel9

  • Sr. Member
  • ****
  • Posts: 495
Zone control is accomplished in hydronic systems using thermostats that activate:
 
  A) A zone compressor for each zone. B) A zone boiler for each zone.
  C) A zone damper for each zone. D) A zone control valve for each zone.

Question 2

What efficiency advantage do water-source heat pump systems have over air-source heat pump systems?
 
  A) Water is a more efficient heat-transfer medium, and water temperatures are moderated by the earth.
  B) It takes less horsepower to pump water than air.
  C) Heat has more affinity for water than air.
  D) Water is a more efficient refrigerant than either R-22 or R-410A.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

chjcharjto14

  • Sr. Member
  • ****
  • Posts: 342
Answer to Question 1

D

Answer to Question 2

A




rachel9

  • Member
  • Posts: 495
Reply 2 on: Jul 24, 2018
Excellent


Laurenleakan

  • Member
  • Posts: 309
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

 

Did you know?

Eating carrots will improve your eyesight. Carrots are high in vitamin A (retinol), which is essential for good vision. It can also be found in milk, cheese, egg yolks, and liver.

Did you know?

Children with strabismus (crossed eyes) can be treated. They are not able to outgrow this condition on their own, but with help, it can be more easily corrected at a younger age. It is important for infants to have eye examinations as early as possible in their development and then another at age 2 years.

Did you know?

Before a vaccine is licensed in the USA, the Food and Drug Administration (FDA) reviews it for safety and effectiveness. The CDC then reviews all studies again, as well as the American Academy of Pediatrics and the American Academy of Family Physicians. Every lot of vaccine is tested before administration to the public, and the FDA regularly inspects vaccine manufacturers' facilities.

Did you know?

Computer programs are available that crosscheck a new drug's possible trade name with all other trade names currently available. These programs detect dangerous similarities between names and alert the manufacturer of the drug.

Did you know?

Certain rare plants containing cyanide include apricot pits and a type of potato called cassava. Fortunately, only chronic or massive ingestion of any of these plants can lead to serious poisoning.

For a complete list of videos, visit our video library