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

Author Question: Zone control is accomplished in hydronic systems using thermostats that activate: A) A zone ... (Read 99 times)

rachel9

  • Sr. Member
  • ****
  • Posts: 495
on: Jul 24, 2018
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
Reply #1 on: Jul 24, 2018
Answer to Question 1

D

Answer to Question 2

A


rachel9

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

Jsherida

  • Member
  • Posts: 314
Reply 3 on: Yesterday
Excellent

« previous next »
 

Did you know?

It is widely believed that giving a daily oral dose of aspirin to heart attack patients improves their chances of survival because the aspirin blocks the formation of new blood clots.

Did you know?

Studies show that systolic blood pressure can be significantly lowered by taking statins. In fact, the higher the patient's baseline blood pressure, the greater the effect of statins on his or her blood pressure.

Did you know?

Malaria mortality rates are falling. Increased malaria prevention and control measures have greatly improved these rates. Since 2000, malaria mortality rates have fallen globally by 60% among all age groups, and by 65% among children under age 5.

Did you know?

Of the estimated 2 million heroin users in the United States, 600,000–800,000 are considered hardcore addicts. Heroin addiction is considered to be one of the hardest addictions to recover from.

Did you know?

The oldest recorded age was 122. Madame Jeanne Calment was born in France in 1875 and died in 1997. She was a vegetarian and loved olive oil, port wine, and chocolate.

Vertical filing systems offer an alternative to traditional upright storage systems Vertical filing systems offer an alternative to traditional upright storage systems
Review of Systems ROS Cont. Review of Systems ROS Cont.
Major Wind Systems: Sea and Land Breezes Major Wind Systems: Sea and Land Breezes
Twilight Zone Twilight Zone
Feedback control of adrenal cortex Feedback control of adrenal cortex
Control of Respiration Control of Respiration
Video: Resting membrane potential - electrical polarity and maintenance requirements

For a complete list of videos, visit our video library