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

Author Question: Commercial doors must be guaranteed not to burn for 3 hours. a. True b. ... (Read 58 times)

mydiamond

  • Hero Member
  • *****
  • Posts: 804
on: Aug 28, 2018
Commercial doors must be guaranteed not to burn for 3 hours.
 
  a. True
   b. False

Question 2

Wood doors are much more energy efficient than fiberglass doors.
 
  a. True
  b. False


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

kescobar@64

  • Sr. Member
  • ****
  • Posts: 324
Reply #1 on: Aug 28, 2018
Answer to Question 1

b, commercial doors must be guaranteed not to burn for 1 1/2 hours.

Answer to Question 2

b, fiberglass doors are six times as energy efficient as conventional wood doors


mydiamond

  • Hero Member
  • *****
  • Posts: 804
Reply #2 on: Aug 28, 2018
Thanks


kescobar@64

  • Sr. Member
  • ****
  • Posts: 324
Reply #3 on: Aug 28, 2018
Welcome :)


« previous next »
 

Did you know?

Over time, chronic hepatitis B virus and hepatitis C virus infections can progress to advanced liver disease, liver failure, and hepatocellular carcinoma. Unlike other forms, more than 80% of hepatitis C infections become chronic and lead to liver disease. When combined with hepatitis B, hepatitis C now accounts for 75% percent of all cases of liver disease around the world. Liver failure caused by hepatitis C is now leading cause of liver transplants in the United States.

Did you know?

Acetaminophen (Tylenol) in overdose can seriously damage the liver. It should never be taken by people who use alcohol heavily; it can result in severe liver damage and even a condition requiring a liver transplant.

Did you know?

Coca-Cola originally used coca leaves and caffeine from the African kola nut. It was advertised as a therapeutic agent and "pickerupper." Eventually, its formulation was changed, and the coca leaves were removed because of the effects of regulation on cocaine-related products.

Did you know?

Adolescents often feel clumsy during puberty because during this time of development, their hands and feet grow faster than their arms and legs do. The body is therefore out of proportion. One out of five adolescents actually experiences growing pains during this period.

Did you know?

There used to be a metric calendar, as well as metric clocks. The metric calendar, or "French Republican Calendar" divided the year into 12 months, but each month was divided into three 10-day weeks. Each day had 10 decimal hours. Each hour had 100 decimal minutes. Due to lack of popularity, the metric clocks and calendars were ended in 1795, three years after they had been first marketed.

Prescribed burn in Pukaskwa National Park. Prescribed burn in Pukaskwa National Park.
Our body in 24 hours Our body in 24 hours
Multiple-dose drug administration: drug A and drug B are administered every 12 hours; drug B reaches Multiple-dose drug administration: drug A and drug B are administered every 12 hours; drug B reaches
Temperature cycles for 24 hours Temperature cycles for 24 hours
An agglutination inhibition reaction. Commercial kit materials would create an agglutination ... An agglutination inhibition reaction. Commercial kit materials would create an agglutination ...
A group of children were asked how many hours a day they spend watching television. A group of children were asked how many hours a day they spend watching television.
Video: Darwin's Observation (Fossils, Galapagos Islands & Africa ) and Natural Selection (Adaptive Traits)

For a complete list of videos, visit our video library