The most common method to establish a current path through the gas uses a high-frequency ____________________ current carried through the conductor, the electrode, and back from the nozzle tip.
Fill in the blank(s) with the appropriate word(s).
alternating
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?One way in which casting differs from extrusion or molding is that casting ____.
A. ?is initiated as a solid B. ?uses atmospheric pressure to fill the mold C. ?uses at least 300 psi to fill the mold D. ?uses PC and PP materials
Determining probable construction costs are _____ estimates.
a. pre-construction b. resource c. preliminary d. detailed
If refrigerant from an air-conditioning system contacts your skin or eyes it will _____ them.
What will be an ideal response?
A refrigeration system that uses the evaporator of a higher-temperature system to cool the condenser of a lower-temperature refrigeration system is called a:
A) Subordinate system. B) Supercritical system. C) Cascade system. D) Transcritical system.