How does an HPR (head pressure regulating) valve maintain head pressure?
a. It mixes the suction vapor with the condenser liquid to keep pressure up.
b. It backs up refrigerant in the condenser to increase head pressure.
c. It increases the liquid in the receiver in order to keep the pressure up.
b. It backs up refrigerant in the condenser to increase head pressure.
You might also like to view...
List four categories of synthetic auxins used for weed control
What will be an ideal response?
Fill in the blank(s) with the appropriate word(s).
What is a residual oil?
A) Residuals are filtered to remove impurities. B) Residuals are bio-fuels manufactured from ethanol. C) A residual is what is left after all the distillates have been vaporized. D) Residuals evaporate at relatively low temperatures.
The disadvantage of a host-based intrusion detection system (HIDS) is that it
a. can analyze any encrypted data if it is decrypted before reaching the target host. b. consumes resources on the host it resides on and slows that device down. c. monitors log files for inadvisable settings or passwords. d. monitors traffic on the host on which it is installed.