« previous next »

Author Question: According to their k values, which material is a better insulator: expanded polystyrene or expanded ... (Read 55 times)

dollx

  • Hero Member
  • *****
  • Posts: 558
on: Jul 26, 2018
According to their k values, which material is a better insulator: expanded polystyrene or expanded polyurethane?
 
  What will be an ideal response?

Question 2

List the 5 major electrical devices in the heating circuit diagram in Figure 50-30.
 
  What will be an ideal response?


tuwy

  • Sr. Member
  • ****
  • Posts: 336
Reply #1 on: Jul 26, 2018
Answer to Question 1

Polyurethane is a better insulator because it has a lower k-factor.

Answer to Question 2

The fan motor, the 24 V automatic gas solenoid, the combination blower and limit control, the step down transformer, and the room thermostat.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

The first monoclonal antibodies were made exclusively from mouse cells. Some are now fully human, which means they are likely to be safer and may be more effective than older monoclonal antibodies.

Did you know?

Asthma occurs in one in 11 children and in one in 12 adults. African Americans and Latinos have a higher risk for developing asthma than other groups.

Did you know?

Anesthesia awareness is a potentially disturbing adverse effect wherein patients who have been paralyzed with muscle relaxants may awaken. They may be aware of their surroundings but unable to communicate or move. Neurologic monitoring equipment that helps to more closely check the patient's anesthesia stages is now available to avoid the occurrence of anesthesia awareness.

Did you know?

There are 20 feet of blood vessels in each square inch of human skin.

Did you know?

Malaria was not eliminated in the United States until 1951. The term eliminated means that no new cases arise in a country for 3 years.

Overview of material uptake and long-distance transport processes in plants Overview of material uptake and long-distance transport processes in plants
Cultural values Exercise Cultural values Exercise
The inverse-square law and its effects. Doubling your distance away from a radioactive material ... The inverse-square law and its effects. Doubling your distance away from a radioactive material ...
The Dietary Reference Intakes Are Reference Values for Each Nutrient The Dietary Reference Intakes Are Reference Values for Each Nutrient
Finding the graph of a Parabola using certain values Finding the graph of a Parabola using certain values
Finding the graph of a Parabola using certain values Finding the graph of a Parabola using certain values
Video: Summation - defined, spatial, temporal & AP generation or not

For a complete list of videos, visit our video library