« previous next »

Author Question: Fiberboard duct is joined A) using the mechanically self-sealing joints formed on the end of the ... (Read 20 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 is the most common chronic childhood disease in the world. Most children who develop asthma have symptoms before they are 5 years old.

Did you know?

The most common treatment options for addiction include psychotherapy, support groups, and individual counseling.

Did you know?

Illness; diuretics; laxative abuse; hot weather; exercise; sweating; caffeine; alcoholic beverages; starvation diets; inadequate carbohydrate consumption; and diets high in protein, salt, or fiber can cause people to become dehydrated.

Did you know?

The most dangerous mercury compound, dimethyl mercury, is so toxic that even a few microliters spilled on the skin can cause death. Mercury has been shown to accumulate in higher amounts in the following types of fish than other types: swordfish, shark, mackerel, tilefish, crab, and tuna.

Did you know?

Intradermal injections are somewhat difficult to correctly administer because the skin layers are so thin that it is easy to accidentally punch through to the deeper subcutaneous layer.

Range of Motion of the Wrist and Hand Joints, Flexion and Hyperextension of the Fingers Range of Motion of the Wrist and Hand Joints, Flexion and Hyperextension of the Fingers
Formed Elements of Blood Formed Elements of Blood
Blending inheritance formed the basis of nineteenth-century critiques of evolution by natural select Blending inheritance formed the basis of nineteenth-century critiques of evolution by natural select
A mother dies, a father loses his leg—such calamities shattered poor urban families. Orphaned street A mother dies, a father loses his leg—such calamities shattered poor urban families. Orphaned street
Acute arthritis of the finger joints. Acute arthritis of the finger joints.
Types of Movement at Synovial Joints Types of Movement at Synovial Joints
Video: Epidural Hematoma

For a complete list of videos, visit our video library