The purpose of starting the motor in the ____ configuration is to limit the locked-rotor starting current of these very large motors.
a. NEMA
b. IEC
c. WYE
d. voltage
c. WYE
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According to Ohm's Law, what is the resistance when 1 volt pushes 1 ampere of current through a conductor?
A. 0 ohm B. 1 ohm C. 1 watt D. 1 coulomb
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Most hydronic heating systems are
A) Open systems in cooling and closed systems in heating B) Closed piping systems C) Closed systems in cooling and open in heating D) Open piping systems
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The amount of water that air can hold depends on ____________________
A) Absolute pressure and temperature. B) Absolute pressure and dew point. C) The air temperature. D) Barometric pressure and evaporation.
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White cast iron has almost no ____.
A. malleability B. plasticity C. adjustability D. ductility E. none of the above
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