Author Question: What is one disadvantage of a retractable roof greenhouse? What will be an ideal ... (Read 40 times)

mynx

  • Hero Member
  • *****
  • Posts: 555
What is one disadvantage of a retractable roof greenhouse?
 
  What will be an ideal response?

Question 2

When is a staged controller more practical than thermostats?
 
  What will be an ideal response?



flannelavenger

  • Sr. Member
  • ****
  • Posts: 322
Answer to Question 1

A single covering is used on the greenhouse that looses more heat than
double roof coverings.

Answer to Question 2

1) When a signal from a single sensor such as temperature is used to
activate several stages of response, such as 2 stages of heating and 3 stages of
cooling. 2) When signals are received from more sensors than just a temperature
sensor.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

Carbamazepine can interfere with the results of home pregnancy tests. If you are taking carbamazepine, do not try to test for pregnancy at home.

Did you know?

Hip fractures are the most serious consequences of osteoporosis. The incidence of hip fractures increases with each decade among patients in their 60s to patients in their 90s for both women and men of all populations. Men and women older than 80 years of age show the highest incidence of hip fractures.

Did you know?

Inotropic therapy does not have a role in the treatment of most heart failure patients. These drugs can make patients feel and function better but usually do not lengthen the predicted length of their lives.

Did you know?

The familiar sounds of your heart are made by the heart's valves as they open and close.

Did you know?

Patients who cannot swallow may receive nutrition via a parenteral route—usually, a catheter is inserted through the chest into a large vein going into the heart.

For a complete list of videos, visit our video library