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

Author Question: Why is a visual inspection necessary when cleaning ductwork? What will be an ideal ... (Read 28 times)

kodithompson

  • Hero Member
  • *****
  • Posts: 566
on: Jul 26, 2018
Why is a visual inspection necessary when cleaning ductwork?
 
  What will be an ideal response?

Question 2

Describe how two pieces of round sheet metal pipe are joined.
 
  What will be an ideal response?


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

mcarey591

  • Sr. Member
  • ****
  • Posts: 365
Reply #1 on: Jul 26, 2018
Answer to Question 1

A visual inspection is necessary to determine the need for cleaning.

Answer to Question 2

One end of the duct is crimped, making it's outside diameter slightly smaller than the regular duct diameter. A bead behind the crimp serves as a stop when inserting one duct into another. All joints should be fastened with sheet metal screws or rivets. The joint should be sealed with UL 723 duct tape and or mastic.


kodithompson

  • Member
  • Posts: 566
Reply 2 on: Jul 26, 2018
Thanks for the timely response, appreciate it

olderstudent

  • Member
  • Posts: 339
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

For high blood pressure (hypertension), a new class of drug, called a vasopeptidase blocker (inhibitor), has been developed. It decreases blood pressure by simultaneously dilating the peripheral arteries and increasing the body's loss of salt.

Did you know?

Throughout history, plants containing cardiac steroids have been used as heart drugs and as poisons (e.g., in arrows used in combat), emetics, and diuretics.

Did you know?

In ancient Rome, many of the richer people in the population had lead-induced gout. The reason for this is unclear. Lead poisoning has also been linked to madness.

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?

This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.

Testing Visual Fields by Confrontation: Visual Fields Range Testing Visual Fields by Confrontation: Visual Fields Range
Cleaning Agent Cleaning Agent
Psychological Dimensions of the Visual World Psychological Dimensions of the Visual World
Under ideal conditions, a single cell of the bacterium E. coli would divide every 20 minutes to ... Under ideal conditions, a single cell of the bacterium E. coli would divide every 20 minutes to ...
Visual Cliff Experiment Visual Cliff Experiment
For the circuit in Figure 1, assume ideal diodes. The peak inverse voltage is approximately For the circuit in Figure 1, assume ideal diodes. The peak inverse voltage is approximately
Video: Isovolumetric VC, Ventricular ejection, Isovolumetric & Passive ventricular filling

For a complete list of videos, visit our video library