Reta caro exam 2024 - Study guides, Class notes & Summaries

What best describes pipe fitting for ammonia? - ANSWERS,Copper corrodes fast when moisture Which of these may occur when Ammonia is exposed to hot metallic surfaces? - ANSWERS,Decomposition may occur resulting in release of hydrogen gas. Which statement best describes HCHF's? - ANSWERS,R-22 Which best describes Ammonia at 80 degrees and 177.99Psig? - ANSWERS,80 degrees= 138Psig= non-condensables in the system What is the evaporating pressure for R-22 at 20 degrees? - ANSWERS,43Psig Whic...

Subcooled refrigerant can only be what - ANSWERS,Liquid Superheated refrigerant can only be ? - ANSWERS,Vapor Saturated refrigerant can be what? - ANSWERS,A liquid, vapor or a combination of the two What do you multiply the mass flow rate (lbs./min) by to determine the vapor flow rate through the compressor - ANSWERS,Specific volume (cubic ft./lbs) Three factors to consider when choosing a refrigerant are - ANSWERS,Cost, available, and safety One positive characteristic of halocarbon ...