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Author Question: How does a duct blaster measure air leakage in duct systems? A) It measures the airflow required ... (Read 78 times)

plus1

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on: Jul 24, 2018
How does a duct blaster measure air leakage in duct systems?
 
  A) It measures the airflow required to maintain a specified pressure.
  B) It uses a velocimeter to calculate the speed of the sonically diffused airstream.
  C) It measures the time it takes the duct system to depressurize.
  D) It measures the actual leakage area through reflected pressure waves.

Question 2

How much vacuum must a fuel oil pump produce to move fuel oil 20 ft horizontally?
 
  A) 20  5 = 4 in of vacuum B) 20  10 = 2 in of vacuum
  C) 20  2 = 10 in of vacuum D) 20  1 = 20 in of vacuum


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enass

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

A

Answer to Question 2

B


plus1

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Reply 2 on: Jul 24, 2018
Gracias!

brbarasa

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Reply 3 on: Yesterday
Excellent

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