Air & Refrigeration flashcards
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| What is resistance measured in? | ohms
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| Force times distance equals what? | f x d = work
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| What does rpm mean? | rpm= revolutions per minute
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| 1 horsepower is equal to how many watts? | 1 hp = 746 watts
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| What is latent heat of condensation? | latent heat of condensation isamount of heat energy, in btu/lb required to change vapor into a liquid
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| What is latent heat of vaporation? | latent heat of vaporation is the amount of heat energy, in btu/lb required to change a substance into a vapor
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| What is latent heat? | latent or hidden heat is heat added but no temperature rises
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| What is sensible heat? | sensible heat is when temperature changes and can be registered
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| What is natural convection? | natural convection is heated air that rises naturally
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| What is Convection in dealing with heat? | convection is heat when it is moved from one place to another
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| What is conduction when dealing with heat? | conduction is heat when it is moved from one molecule to another
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| What is One Ton Of Refrigeration? | in a 24hr period, 144BTU x 2000lbs = 288,000 BTU
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| What is a Evaporator? | a evaporator absorbs heat into the system 3 functions 1. absorb heat 2. allow heat to boil off 3. allow heat to superheat refrigerant vapors
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| What is a compressor? | also known as a vapor pump, it reduces the pressure on low side and increases the heat on the high side
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| What is a reciprocating compressor? | a compressor that uses a piston in a cylinder to compress the refrigerant
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Created by:
Raj S
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