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

Author Question: When comparing duct materials, none have a lower friction rate or are as durable as: A) Sheet ... (Read 175 times)

casperchen82

  • Hero Member
  • *****
  • Posts: 540
on: Jul 24, 2018
When comparing duct materials, none have a lower friction rate or are as durable as:
 
  A) Sheet metal. B) Ductboard. C) Flex duct. D) Fiberboard.

Question 2

What is the recommended face velocity for a return air filter grille?
 
  A) 1,0001,500 ft per minute B) 500600 ft per minute
  C) 300400 ft per minute D) 6001,000 ft per minute


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

srodz

  • Sr. Member
  • ****
  • Posts: 333
Reply #1 on: Jul 24, 2018
Answer to Question 1

A

Answer to Question 2

C


casperchen82

  • Member
  • Posts: 540
Reply 2 on: Jul 24, 2018
Excellent

sailorcrescent

  • Member
  • Posts: 334
Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

« previous next »
 

Did you know?

In Eastern Europe and Russia, interferon is administered intranasally in varied doses for the common cold and influenza. It is claimed that this treatment can lower the risk of infection by as much as 60–70%.

Did you know?

A headache when you wake up in the morning is indicative of sinusitis. Other symptoms of sinusitis can include fever, weakness, tiredness, a cough that may be more severe at night, and a runny nose or nasal congestion.

Did you know?

Asthma attacks and symptoms usually get started by specific triggers (such as viruses, allergies, gases, and air particles). You should talk to your doctor about these triggers and find ways to avoid or get rid of them.

Did you know?

In 1885, the Lloyd Manufacturing Company of Albany, New York, promoted and sold "Cocaine Toothache Drops" at 15 cents per bottle! In 1914, the Harrison Narcotic Act brought the sale and distribution of this drug under federal control.

Did you know?

Oxytocin is recommended only for pregnancies that have a medical reason for inducing labor (such as eclampsia) and is not recommended for elective procedures or for making the birthing process more convenient.

Gallbladder with gallstones. Note the stones in the hepatic duct, gallbladder, and common bile duct. Gallbladder with gallstones. Note the stones in the hepatic duct, gallbladder, and common bile duct.
For this bimolecular reaction, the rate constant k is second order For this bimolecular reaction, the rate constant k is second order
Rate of Residential Change, Past Year, in the United States Rate of Residential Change, Past Year, in the United States
Top Ten States Ranked by Rate or Reported Bacterial STI Cases in 2011 Top Ten States Ranked by Rate or Reported Bacterial STI Cases in 2011
Ice cores also preserve a record of ice sheet growth and decay Ice cores also preserve a record of ice sheet growth and decay
Outgroup role in relative rate test Outgroup role in relative rate test
Video: Glycolysis Animation

For a complete list of videos, visit our video library