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    why is nitrogen considered a "non-condensable" gas?
    Answers: 1 | Views: 969 | Rating: 1 | Posted: 10 years ago
    Last answer: ROMOS 10 years ago
    In hvac/r, what special precautions should be taken with drain lines in walk-in coolers? A.freeze protection B.trapped to prevent air from being pulled in C.sloped downward D.all the above
    Answers: 1 | Views: 1344 | Rating: 0 | Posted: 12 years ago
    Last answer: Deleted User 12 years ago
    hvac/r,what is the special valve used in a refrigerated air drier?
    Answers: 1 | Views: 433 | Rating: 0 | Posted: 12 years ago
    Last answer: Deleted User 12 years ago
    the density of tungsten is 1210 lb/ft3. what would be it's specific volume
    Answers: 3 | Views: 4100 | Rating: 1 | Posted: 12 years ago
    Last answer: ROMOS 12 years ago
    do air cooled condensers have lower head pressure than water cooled condensers?
    Answers: 1 | Views: 529 | Rating: 0 | Posted: 13 years ago
    Last answer: Shootah 13 years ago

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