A/C Study guide HVAC TCAT EXAM QUESTIONS AND ANSWERS 100% CORRECT

Absolute Humidity - ANSWERThe weight of water vapor in a given amount of air (Grains per cubic foot) Absolute Pressure - ANSWERPressure measured with a base of zero Absolute Temperature - ANSWERA temperature scale using absolute zero as a reference - Rankin or Kelvin Scale (may be measures in degrees C or F) Absolute Zero - ANSWERTheoretical temperature at which all molecular activity ceases = -273.16 C or -456.69 F 250% - ANSWERBy approximately how much (%) does a start capacitor increase motor torque? C. Both - ANSWERTech A says that it is possible to identify the start and run windings of a motor with an ohm meter by noting which has higher resistance, indicating the start windings. Tech B say the highest resistance will be noted when measuring from run to start terminals. Which is correct? A. Tech A B. Tech B C. Both D. Neigher Compressor - ANSWERThe heart of a system, keeps the refridgerant flowing at specific rates of flow, at specific temperatures. Inlet (suction), shuts down system if pressure drops too low. - ANSWEROn which side of a compressor is the low pressure switch, inlet or outlet, and what function does it provide?