The effects of small carbon particles inside the refrigeration system include:
A) Making the compressor shell brittle.
B) Grounding hermetic compressor terminals.
C) Strengthening the compressor motor magnetic field.
D) Improving internal compressor lubrication.
B
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A ____ is part of a building plan that describes the various symbols and abbreviations used on the plan.
a. scale b. system c. control d. legend
Which of the following is used to supply biocides to steam and water systems?
a. Dual media filter b. Brine tank c. Automatic chemical feed controller d. Boiler blowdown control system
Which HVAC wiring connections are low voltage?
A. from the condensing unit to the air handler B. from the circuit panel to the condensing unit C. from the circuit panel to the air handler D. from the outside disconnect to the condensing unit
A truly global firm operates as a single integrated organization.
Answer the following statement true (T) or false (F)