A Y-chromosome means the embryo is _____.
Fill in the blank(s) with the appropriate word(s).
male
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When using the longest run method for sizing fuel gas piping, the required piping capacity must be ____________________ as each additional appliance is connected to the system.
Fill in the blank(s) with the appropriate word(s).
What type of tray design is designed with perforated openings, typically circular, in the tray deck?
A) Sieve tray B) Valve tray C) Bubble cap tray D) Overhead tray
Why are liquid line filter-driers required for all systems using HFC refrigerant?
A) Because the filter-drier is also the metering device in newer systems B) Because the filter-drier also serves as a reservoir for refrigerant C) Because the POE oil used with HFC refrigerant is very hygroscopic D) Because HFC refrigerants often form fluoride crystals inside the system
The amount of space occupied by matter defines:
A) Mass. B) Volume. C) The properties of matter. D) Weight.