Why does some of the refrigerant liquid flash vaporize in the metering device?
What will be an ideal response?
The refrigerant starts to flash from a liquid to a gas because the pressure has dropped to the saturation point. The small amount of liquid flashing cools the remaining liquid.
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Which of the following are trends for the future regarding environmental protection?
A. Public pressure from environmental advocacy groups. B. Improved public relation. C. Fear of liability and risk. D. All of the above.
In a parallel out shift register, data is available all at one time on the outputs
Indicate whether the statement is true or false
What is a big advantage of the bubbler system?
What will be an ideal response?
When a voltage is present at an input terminal that has the same address as an examine-off contact, a ____________________ (0, 1) is present at its addressed memory bit, it is in the ____________________ (true, false) condition, and logic continuity in its rung ____________________(does, does not) exist.
Fill in the blank(s) with the appropriate word(s).