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badkarma2007 badkarma2007
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6 years ago
What is done when an HVACR system is commissioned?
 
  A) The system is checked to make sure it is operating as designed.
  B) The system is named.
  C) The system is designed.
  D) The system is started for the first time.


[Ques. 2] Water circulating pumps are rated by:
 
  A) Head pressure. B) Wet and dry capacity.
  C) Flow. D) Flow and head pressure.


[Ques. 3] What code restrictions can prevent using an open-loop geothermal system?
 
  A) Some states have bans on any type of geothermal system.
  B) Some states require all discharged water to stay on the owner's property.
  C) Geothermal systems typically are not very efficient.
  D) Patent and copyright laws often prohibit the use of open-loop systems.


[Ques. 4] What is the equivalent length of a 5-in connector with a 90-degree ell?
 
  A) 9 ft B) 11 ft C) 7 ft D) 5 ft


[Ques. 5] Using the CFM per 100 sq ft method, a 1,600 sq ft house leaking 120 CFM has a leakage rate of:
 
  A) 1,600/120 = 13 CFM per 100 sq ft. B) 1,600 + 120 = 1,720 CFM.
  C) 1,600 - 120 = 1,480 CFM. D) 120/16 = 7.5 CFM per 100 sq ft.
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QuinnQuinn
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Posts: 344
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6 years ago
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badkarma2007 Author
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#2
6 years ago
Such an awesome helper!
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