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Author Question: Underwriters Laboratories standard 181 A covers: A) Methods of connecting and sealing metal duct. ... (Read 59 times)

karateprodigy

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on: Jul 24, 2018
Underwriters Laboratories standard 181 A covers:
 
  A) Methods of connecting and sealing metal duct.
  B) Methods of connecting and sealing ductboard.
  C) Methods of connecting and sealing all types of duct.
  D) Methods of connecting and sealing flexible duct.

Question 2

What is a dump zone in a zoned air system?
 
  A) The location where exhaust air exits the building
  B) The area where refrigerant is vented while reducing system capacity during low-load operation
  C) The area immediately under a supply register
  D) An area used for dumping excess air and capacity when only one zone is calling


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poopface

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Reply #1 on: Jul 24, 2018
Answer to Question 1

B

Answer to Question 2

D


karateprodigy

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Reply 2 on: Jul 24, 2018
Excellent

kthug

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Reply 3 on: Yesterday
Wow, this really help

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