Using the percentage of design flow method, a system that leaks 100 CFM in a system with a design flow of 1,200 CFM has a leakage rate of:
A) 1,200 CFM - 100 CFM = 11 leakage rate.
B) 100 CFM/1,200 CFM = 8 leakage rate.
C) 100 CFM/(1,200 CFM - 100 CFM) = 9 leakage rate.
D) 1,200 CFM/100 CFM = 12 leakage rate.
[Ques. 2] The purpose of TAB is to document that:
A) Initial startup adjustments are made.
B) The duct system does not leak.
C) Each area has the minimum required ventilation.
D) The system is performing as designed.
[Ques. 3] If the compressor oil on a hermetic compressor is acidic, the next step is to change the:
A) Compressor oil once. B) Compressor oil repeatedly.
C) System filter driers repeatedly. D) System filter driers once.
[Ques. 4] You will never see a pump with a profile of:
A) High pressure and high flow. B) High pressure and low flow.
C) Low pressure and low flow. D) Low pressure and high flow.
[Ques. 5] What type of heat pumps are commonly installed above the drop ceiling in each zone in a commercial building?
A) Vertical water source heat pumps B) Air-source packaged heat pumps
C) Horizontal water source heat pumps D) Air-source wall mount heat pumps
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