13 Multiple Choice 2 points What should be the next step taken if a technician has determined that line-voltage and control voltage are available to an HVAC system that will not operate? Check the capacitance of the run capacitor Isolate the circuit that contains the fault Measure the resistance of the compressor motor O Replace the thermostat 14 Multiple Choice 2 points What is the condition of the coil on a 230-volt relay with a resistance reading of OL on a digital ohmmeter? O The coil is shorted O The coil is shunted O The coil is open O The coil is good 15 Multiple Choice 2 points Which of the following items could assist the technician in correctly diagnosing problems in HVAC equipment? Troubleshooting charts Self-diagnostic features Installation and service manuals All of the choices are correct 16 Multiple Choice 2 points Which of the following choices describes a method to check the condition of a control transformer? Check for proper line-voltage to the transformer All of the choices are correct Check to ensure proper low-voltage is being produced by the transformer Check the resistance of the transformer's windings 17 Multiple Choice 2 points What must a person know and understand about an air conditioning system in order to be an effective service technician? Why the equipment operates as it does All of the choices are correct How the system operates When the functions of the system should operate