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

Author Question: A residential A/C system that cools in summer and heats in winter by reversing the flow of ... (Read 128 times)

mspears3

  • Hero Member
  • *****
  • Posts: 586
on: Jul 24, 2018
A residential A/C system that cools in summer and heats in winter by reversing the flow of refrigerant is called a:
 
  A) PTAC system. B) Stand-alone A/C system.
  C) Window unit. D) Heat pump.

Question 2

To prevent the spread of smoke and fire, fire dampers are designed to close:
 
  A) Manually.
  B) Using the NO contacts of the fire alarm relay.
  C) Automatically.
  D) All the time except when the system is operating.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

bfulkerson77

  • Sr. Member
  • ****
  • Posts: 331
Reply #1 on: Jul 24, 2018
Answer to Question 1

D

Answer to Question 2

C


mspears3

  • Member
  • Posts: 586
Reply 2 on: Jul 24, 2018
Gracias!

marict

  • Member
  • Posts: 304
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

Interferon was scarce and expensive until 1980, when the interferon gene was inserted into bacteria using recombinant DNA technology, allowing for mass cultivation and purification from bacterial cultures.

Did you know?

The Centers for Disease Control and Prevention has released reports detailing the deaths of infants (younger than 1 year of age) who died after being given cold and cough medications. This underscores the importance of educating parents that children younger than 2 years of age should never be given over-the-counter cold and cough medications without consulting their physicians.

Did you know?

Blood in the urine can be a sign of a kidney stone, glomerulonephritis, or other kidney problems.

Did you know?

For about 100 years, scientists thought that peptic ulcers were caused by stress, spicy food, and alcohol. Later, researchers added stomach acid to the list of causes and began treating ulcers with antacids. Now it is known that peptic ulcers are predominantly caused by Helicobacter pylori, a spiral-shaped bacterium that normally exist in the stomach.

Did you know?

According to the National Institute of Environmental Health Sciences, lung disease is the third leading killer in the United States, responsible for one in seven deaths. It is the leading cause of death among infants under the age of one year.

Conduction System of the Heart Conduction System of the Heart
The sensing wire in a typical hot wire mass air flow sensor. The sensing wire in a typical hot wire mass air flow sensor.
The amount each injector is able to flow is displayed in glass cylinders are each injector for a ... The amount each injector is able to flow is displayed in glass cylinders are each injector for a ...
Insect tracheal system. Chitin rings reinforce branching, air-filled tubes in such respiratory syste Insect tracheal system. Chitin rings reinforce branching, air-filled tubes in such respiratory syste
Major muscles of the human musculoskeletal system Major muscles of the human musculoskeletal system
Limbic System Components Limbic System Components
Video: Supine Position

For a complete list of videos, visit our video library