« previous next »

Author Question: According to their k values, which material is a better insulator: expanded polystyrene or expanded ... (Read 46 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 largest baby ever born weighed more than 23 pounds but died just 11 hours after his birth in 1879. The largest surviving baby was born in October 2009 in Sumatra, Indonesia, and weighed an astounding 19.2 pounds at birth.

Did you know?

Vaccines prevent between 2.5 and 4 million deaths every year.

Did you know?

Side effects from substance abuse include nausea, dehydration, reduced productivitiy, and dependence. Though these effects usually worsen over time, the constant need for the substance often overcomes rational thinking.

Did you know?

Cyanide works by making the human body unable to use oxygen.

Did you know?

Russia has the highest death rate from cardiovascular disease followed by the Ukraine, Romania, Hungary, and Poland.

The locations of genetic material in animal and plant cells. The locations of genetic material in animal and plant cells.
Changes in Blood Test Values with Acute Myocardial Infarction Changes in Blood Test Values with Acute Myocardial Infarction
Material Balance over #3 Heat Exchanger Material Balance over #3 Heat Exchanger
The brain, spinal cord, and spinal nerves. An expanded view of the spinal cord is shown. The brain, spinal cord, and spinal nerves. An expanded view of the spinal cord is shown.
How to graph line equations without a table of values How to graph line equations without a table of values
Concordance Values in Monozygotic and Dizygotic Twins Concordance Values in Monozygotic and Dizygotic Twins
Video: Oxygen - hemoglobin dissociation curve & Hemoglobin's affinity with oxygen - acidity

For a complete list of videos, visit our video library