Which of the following is the correct order of the flow in the cooling cycle of an air-source heat pump?
A) Reversing valve, indoor coil, outdoor coil, outdoor TEV, compressor
B) Compressor, reversing valve, outdoor coil, indoor TEV, indoor coil, reversing valve
C) Compressor, reversing valve, indoor coil, outdoor TEV, outdoor coil, reversing valve
D) Outdoor TEV, outdoor coil, reversing valve, compressor, reversing valve, indoor coil
B
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What is the purpose of an Uninterruptible Power Supply (UPS)?
A. Provides AC regulation B. Provide steady-state power during a total failure of the main supply input C. Provide filtering D. All the above
A ________ is insulation sandwiched between two out skin layers
A) EPS B) SIP C) Foam scoop D) OSB
Any exposed live parts must be guarded if they are operating at _____
a. 15V or more between terminals b. 50V or more between terminals c. 240V or more between terminals d. 600V or more between terminals
A wind turbine met mast is only used to support the aviation obstruction light.
Answer the following statement true (T) or false (F)