Why do heat pumps operate more efficiently than electric furnaces?
A) Heat pumps use a more direct method of converting electrical energy to heat energy.
B) Refrigerant has a natural affinity for heat.
C) Heat pumps and electric furnaces actually operate at about the same efficiency.
D) They use electricity to move heat rather than converting electricity directly to heat.
D
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A side-by-side analysis of the plumbing and electrical drawings should include which of the following elements?
a. plumbing equipment that requires electrical connections b. conflicts and interferences c. special requirements for electrical information or instructions required to be furnished by the plumbing contractor d. all of the above
drawing can include characteristics of more than one drawing type.
a. True b. False
You can define functions from the command line by first entering the name of the function and then completing the ____________________ to define it.
Fill in the blank(s) with the appropriate word(s).
The pressure difference in an absorption chiller where the source of energy is steam or hot water is produced with the use of a ____________________ solution.
Fill in the blank(s) with the appropriate word(s).