Nate Ac Service Certification Exam With 100% Correct Answers 2023

What factors should a technician determine when replacing a contactor? A. Coil voltage, number of poles, and contact ratings B. Coil voltage, coil henries, number of poles, and contact rating C. Coil voltage, coil amp draw, wire sizes, and number of poles D. Coil voltage, coil resistance, number of poles, and coil henries {Ans: *D}Return air leakage in a hot attic will: A. Increase capacity B. Decrease capacity C. Increase airflow D. Decrease airflow {Ans: B. Decrease capacity}If the technician beleives that a hermetic compressor has a permanently open internal overload protector, the technician should test the compressor while it is: A. cool. B. bypassed. C. hot. D. running. {Ans: A. cool.}An important consideration when installing a motorized economizer is to check to be certain that: A. the vanes are set for a maximum 10% outdoor air. B. the vanes open on any call for cooling. C. the vanes operate without binding. D. the vanes are permanently set at 50%. {Ans: C. the vanes operate without binding.}With the thermostat blower switch set to ON, which of the following measurements indicates a call for residential indoor blower operation? A. 0 volts at the load side of the