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Author Question: How does the technician know which way to install a disposable panel air filter? A) Most ... (Read 122 times)

nummyann

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on: Jul 24, 2018
How does the technician know which way to install a disposable panel air filter?
 
  A) Most disposable filters can be installed in either direction.
  B) The arrow on the side of the filter points in the direction of airflow.
  C) The arrow on the side of the filter points towards the entering air side.
  D) The side of the filter that is reinforced should be installed in the entering airflow.

Question 2

The noise criteria (NC) rating system used to rate the sound levels of registers and grilles is:
 
  A) The decibel reading at a frequency of 1,500 Hz.
  B) The average decibel reading of five specific frequencies of sound.
  C) Based on graphical analysis of standing pressure waves.
  D) A subjective scale ranking registers from 110.


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chem1s3

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

B

Answer to Question 2

A


nummyann

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Reply 2 on: Jul 24, 2018
Excellent

debra928

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Reply 3 on: Yesterday
Gracias!

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