Like many multisplit units, variable refrigerant flow (VRF) systems use ________ compressors and electronic expansion valves to change the volume of refrigerant being circulated in the system
A) reciprocating B) scroll C) inverter driven D) screw
C
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The propagation delay from input to output in an op-amp causes
A) voltage lag B) phase shift C) differential D) current lag
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What is a spandrel beam?
What will be an ideal response?
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What air property is measured in grains?
A) Wet-bulb temperatures. B) The weight of air. C) Grains are used to measure the amount of water in the air. D) Relative humidity.
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Describe the steps that should be performed prior to flashing the BCM.
What will be an ideal response?
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