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

Author Question: A utility or building code may specify that all electric auxiliary heaters used with a heat pump be ... (Read 51 times)

pragya sharda

  • Hero Member
  • *****
  • Posts: 566
on: Jul 24, 2018
A utility or building code may specify that all electric auxiliary heaters used with a heat pump be staged on
  and off by _____.
 
  a. a setback thermostat
  b. outdoor temperature
  c. time of day
  d. indoor temperature

Question 2

In selecting a heating or cooling system, undersizing is generally acceptable if it is undersized by no more
  than _____.
 
  a. 5 percent
  b. 10 percent
  c. 15 percent
  d. 20 percent


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

lkoler

  • Sr. Member
  • ****
  • Posts: 358
Reply #1 on: Jul 24, 2018
Answer to Question 1

b

Answer to Question 2

a


pragya sharda

  • Hero Member
  • *****
  • Posts: 566
Reply #2 on: Jul 24, 2018
Thanks


lkoler

  • Sr. Member
  • ****
  • Posts: 358
Reply #3 on: Jul 24, 2018
Welcome :)


« previous next »
 

Did you know?

Blood is approximately twice as thick as water because of the cells and other components found in it.

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.

Did you know?

Liver spots have nothing whatsoever to do with the liver. They are a type of freckles commonly seen in older adults who have been out in the sun without sufficient sunscreen.

Did you know?

Though the United States has largely rejected the metric system, it is used for currency, as in 100 pennies = 1 dollar. Previously, the British currency system was used, with measurements such as 12 pence to the shilling, and 20 shillings to the pound.

Did you know?

Giardia is one of the most common intestinal parasites worldwide, and infects up to 20% of the world population, mostly in poorer countries with inadequate sanitation. Infections are most common in children, though chronic Giardia is more common in adults.

Measuring Temperature Using a Heat-Sensitive Wearable Thermometer Measuring Temperature Using a Heat-Sensitive Wearable Thermometer
A typical lubrication system, showing the oil pan, oil pump, oil filter, and oil passages. A typical lubrication system, showing the oil pan, oil pump, oil filter, and oil passages.
When the exhaust is lean, the PCM applies a positive current into the pump cell. When the exhaust is lean, the PCM applies a positive current into the pump cell.
A cutaway view of a typical two-stage turbine electric fuel pump. A cutaway view of a typical two-stage turbine electric fuel pump.
genetic code From Gene to Protein genetic code From Gene to Protein
Increased acidity inhibits the growth of coral and other carbonate shell-building organisms Increased acidity inhibits the growth of coral and other carbonate shell-building organisms
Video: Homeostasis (range of body conditions, normal limits, mild stresses & severe stresses)

For a complete list of videos, visit our video library