« previous next »

Author Question: Fiberboard duct is joined A) using the mechanically self-sealing joints formed on the end of the ... (Read 57 times)

chandani

  • Hero Member
  • *****
  • Posts: 541
on: Jul 26, 2018
Fiberboard duct is joined
 
  A) using the mechanically self-sealing joints formed on the end of the duct
  B) with sheet metal screws and mastic
  C) with tape and mastic
  D) with staples and UL 181A tape

Question 2

Underwriters Laboratories standard 181 B covers
 
  A) methods of connecting and sealing flexible duct
  B) methods of connecting and sealing metal duct
  C) methods of connecting and sealing all types of duct
  D) methods of connecting and sealing ductboard


nguyenhoanhat

  • Sr. Member
  • ****
  • Posts: 332
Reply #1 on: Jul 26, 2018
Answer to Question 1

D

Answer to Question 2

A


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Asthma cases in Americans are about 75% higher today than they were in 1980.

Did you know?

In 1835 it was discovered that a disease of silkworms known as muscardine could be transferred from one silkworm to another, and was caused by a fungus.

Did you know?

Aspirin is the most widely used drug in the world. It has even been recognized as such by the Guinness Book of World Records.

Did you know?

Medications that are definitely not safe to take when breastfeeding include radioactive drugs, antimetabolites, some cancer (chemotherapy) agents, bromocriptine, ergotamine, methotrexate, and cyclosporine.

Did you know?

The first-known contraceptive was crocodile dung, used in Egypt in 2000 BC. Condoms were also reportedly used, made of animal bladders or intestines.

The salivary glands, parotid, sublingual, and submandibular. This image shows the position of each g The salivary glands, parotid, sublingual, and submandibular. This image shows the position of each g
The following terms describe types of body movement that occur at the diarthrotic joints The following terms describe types of body movement that occur at the diarthrotic joints
The protein keratin, formed by all vertebrates The protein keratin, formed by all vertebrates
Joints of the Right Shoulder Joints of the Right Shoulder
Pressing on the nasolacrimal duct Pressing on the nasolacrimal duct
Move joints in hands. Apply scissoring to metacarpals and figure-8s to fingers. Move joints in hands. Apply scissoring to metacarpals and figure-8s to fingers.
Video: Embryonic development - Week 3

For a complete list of videos, visit our video library