PLC relay output modules are used for ________
A) Power isolation for each of the field devices interfaced
B) Field devices with 10 amp current requirements
C) Low level circuitry control
D) None of the above
A
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Identifying all of the loads that operate at the lower voltage and that would use the neutral is the method for determining the ____________________.
Fill in the blank(s) with the appropriate word(s).
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In a flooded chiller, the refrigerant
A) surrounds tubes filled with refrigerant. B) surrounds tubes filled with chilled water. C) circulates in tubes inside the chiller. D) circulates throughout the building.
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The material with the least resistance is
A) silver B) copper C) aluminum D) tin
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What is known as the "Principle of the Conservation of Energy?"
What will be an ideal response?
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