Multiple Choice 2 points Which of the following components are required for a compressor with part winding motor starting? Two three-pole contactors and time delay relay Two three-pole contactors, three-phase compressor motor with split winding, and a time delay relay A three-pole contactor and a time delay relay ty A three-pole contactor and a three-phase compressor motor Multiple Choice 2 points Which of the following are factors that must be considered in the design of commercial and industrial control systems? \\_) Type of control system to be used kx ) Operating cost of equipment All of the choices are correct ._) Heat transfer medium that will be used in structure system Multiple Choice 2 points Which of the following choices is an output device used on a direct digital control system? vail * (_) Return air temperature sensor mo \\_) Return air damper control fo : . \\_) Outside air temperature sensor a _) Enthalpy control Multiple Choice 2 points Which of the following controlling elements could be used as inputs for a direct digital control system? (3 Outside air temperature, outside air damper, mixed air temperature, and enthalpy control / - J Supply air temperature, return air temperature, outside air temperature, and mixed air temperature Supply air temperature, supply air control damper, outside air temperature, and outside control damper Supply air temperature, supply air control damper, return air temperature, and return air damper control