Hvac qu - Study guides, Class notes & Summaries

What does NEC stand for? - National Electric Code What is Ampacity? - The current carrying capacity of wire or cable expressed in amperes or amps. What is EMF? - Electromotive Force (volts) What is Amperage? - The measurement of electrical flow in a conductor. You check volts in parallel or series? - parallel You check amps in parallel or series? - series What is Voltage? - The difference in potential force between two points. Most often called Electromotiv...

Heat which causes a change in temperature of a substance is called; : Sensible Heat. heat added to substance without a rise in temperature; (example: liquid refrigerant to gas) this process is called? : Latent heat of vaporization. Heat added to the refrigerant in a vapor state after the evaporation process is called; : Superheat. A scroll compressor move refrigerant by means of; : Involute Spirals. The movement of heat by way of fluid (or air) is called; : Convection. The movement o...

SOS Mechanic Certification- HVAC Questions With Complete Solutions

OS Mechanic Certification- HVAC questions and answers.

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Michigan Mechanic Certification- HVAC QUESTIONS & ANSWERS 2024 ( A+ GRADED 100% VERIFIED)

SOS Mechanic Certification- HVAC Questions With Complete Solutions

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Intro to hvac questions and answers already passed Which of these heating methods is most commonly used as a heat source in cold climates? Natural gas furnaces Which of the following is a device used to maintain indoor air quality? Ultraviolet light The purpose of an evaporator in a refrigeration cycle is to transfer heat from the air to the refrigerant Heat can be transferred from a refrigerant to the outdoors on a hot day because the refrigerant is warmer than the out door ai...

Michigan Mechanic Certification- HVAC Questions and Answers 100% Solved Cooling system leak diagnosis Correct answer Pressure test or dye test Purpose of a radiator Correct answer The purpose of the radiator is to dissipate heat that is picked up by coolant in the engine into the air passing through its fins and tubes Symptoms of low coolant Correct answer Engine overheating and no heat from the HVAC system Purpose of the thermostat Correct answer The purpose of the thermostat is to tr...