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Heat which causes a change in temperature of a substance is called : Sensible heat Heat added to a substance without a rise in temperature : Latent heat Heat added to the refrigerant in a vapor state after the evaporation process is called : Superheat Scroll compressor move refrigerant by : I...

What is current flow? : D.The flow of electrons in a circuit What is impedance? : A.Opposition to alternating current Like charges will : B.Repel each other Any material that will readily release electrons is called: : B.A conductor The symbol for current is: : B. I Electricity can produce...

1. A gas furnace is to be installed in a garage. The burners and ignition sources must be located ______ above the floor. A: 6 inches B: 12 inches C: 18 inches D: 24 inches : C: 18 inches 2. A good description of how hi-metai fan switch operates the blower motor on a gas furnace is: A: te...

An air-to-air heat pump has many of the same components as an air conditioning system. The major difference is that a heat pump also has an : Reversing valve What is the difference between "demand defrost" and "timed defrost"? : Demand defrost happens only when needed and timed defrost is b...

using an ohmmeter, there is 120 VAC between high speed and ground wires, this indicates : open if temperature rise is too high... : increase fan speed how many of the 3 OSHA conditions defining confined spaces must be met : all 3 what causes the temperature limit safety switch to shut off th...

Heat which causes a change in temperature of a substance is called : Sensible Heat Heat added to a substance without a rise in temperature is called : Latent Heat Heat added to refrigerant in a vapor state after the evaporation process is called : Superheat A scroll compressor moved refrigeran...