When a geothermal heat pump system uses antifreeze in the loop, how is antifreeze added to the loop?
A) By pouring the antifreeze in the loop after it is connected
B) By temporarily connecting a purge unit
C) By pouring the antifreeze in the loop before it is connected
D) By pumping the antifreeze in under pressure
B
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Identify the compounding period for the following interest statements: (a) nominal 7% per year, compounded monthly; (b) effective 6.8% per year, compounded monthly; and (c) effective 3.4% per quarter, compounded weekly.
What will be an ideal response?
Which of the following devices does NOT rely upon the principles of electromagnetism to function?
A. Solenoid B. Headlight C. Relay D. Ignition coil
The requirements for construction and application of panelboards are set forth in NEC® Article _______.
What will be an ideal response?
The oil pressure gauge should come up to normal within how long after starting the engine
1) Minutes. 2) Seconds. 3) It does not matter.