A filter cart will:
a. provide an external filter after a system is contaminated
b. make moving filters around easier
c. be attached to the machine when an extra filter is needed d. crush old filters for recycling them
A
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Explain how output power rating is used to determine the number of inverters needed in a grid- tie PV system.
What will be an ideal response?
Clean Water Acts were passed in the United States in:
a. 1890 and 1960 c. 1970 and 1990 b. 1930 and 1970 d. 1980 and 2000
The use of a solvent-based mastic may be restricted during application because _____.
a. the system must be hot b. it is flammable c. it can dissolve most types of board insulation d. the system must be cold
Which modes of heat transfer occur in gases, such as air?
What will be an ideal response?