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HVAC EXAM 2 QUESTIONS AND ANSWERS/HVAC EXAM 3 QUESTIONS AND ANSWERS/HVAC Final Exam Q&A 2023/HVAC CONTRACTOR EXAM/HVAC Certification Practice Tests/HVAC Exam 1 QUESTIONS AND ANSWERS/HVAC Exam QUESTIONS AND ANSWERS/HVAC-R Final Exam/HVAC Final Exam 1/HVAC
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03-08-2023
HVAC EXAM 2 QUESTIONS AND ANSWERS/HVAC EXAM 3 QUESTIONS AND ANSWERS/HVAC Final Exam Q&A 2023/HVAC CONTRACTOR EXAM/HVAC Certification Practice Tests/HVAC Exam 1 QUESTIONS AND ANSWERS/HVAC Exam QUESTIONS AND ANSWERS/HVAC-R Final Exam/HVAC Final Exam 1/HVAC
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Examen
HVAC-E Quiz 1. An overcharge of refrigerant will cause: Increased head pressure 2. High pressure gauge reads 146 psig and the liquid line temperature at the condensing unit is 95°F. What is the operating systems sub-cooling?: 35°F subcooling 3. A partiall
Examen
HVAC CONTRACTOR EXAM 1. An instrument that measures potential differences between 2 points in an electrical circuit is called? A. potentiometer B. thermistor C. ohmeter D. voltmeter: voltmeter 2. This device uses a thermal sensing bulb at the outlet of th
Examen
HVAC Certification Practice Tests 1. Propane and Butane are _______ than air:: Heavier 2. What will be the resistance in the circuit if the supply voltage is 30V and current flowing through the circuit is 5A: 6 ohms 3. Temperature at which oil starts to p
Examen
HVAC Exam 1 1. Matter exists in what three forms?: solid, liquid, gas 2. What is temperature measured by? Quantity or intensity: Intensity 3. Define British thermal unit (Btu): Measure of heat energy - amount of energy needed to raise 1 lb of water 1 degr
Examen
Chapter 12 - Refrigeration Principles 1. Refrigeration: is the process of moving heat from an area where it is undesirable to an area where the heat is not objectionable 2. Refrigeration System: is a closed system that controls the pressure and temperatur
Examen
HVAC-R Final Exam 1. volt amps: Transformers are normally rated in? 2. true: An insulated jumper may be used to temporarily jump a component in an electrical circuit(true or false)? 3. divided by 10: When using a 10 wrap multiplier the reading on the mete
Examen
Final Exam 1 1. Cooling: What type of application is a close-on-rise thermostat usually used for? 2. A systems switch and a fan: What two manual switches are found on most low voltage thermostats? 3. The operating mode: Off, cooling, heating. The fan swit
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