In a direct digital control system the primary controller is the
A) bleed type thermostat. B) voltage amplifier.
C) HVACR computer. D) Wheatstone bridge.
C
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Convert a 1:100,000 RF to a graphic scale.
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Voltage loss is the result of _________.
A. Size, length and resistance of the wire B. Old cable C. Crosstalk D. Poor shielding
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DC refers to what?
What will be an ideal response?
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Which of the following refrigerant oils is glycol-based?
A) Alkylbenzene B) POE C) PAG D) PVE
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