What is a common cause of clear algae and slime in an ice machine?
a. Yeast from the production of fresh bread, and also from beer.
b. The lack of light and the presence of moisture inside an ice machine.
c. Improper treatment of the water supplied to the ice machine.
a. Yeast from the production of fresh bread, and also from beer.
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Gasoline should be stored in approved containers that include what color(s)?
A) A yellow container with red lettering B) A yellow container C) A red container with yellow lettering D) A red container
The three-phase three-wire system is made by connecting the ____ windings of a three-phase transformer bank in ____ and connecting the three lines to a three-phase panel.
a. secondary; either wye or delta b. secondary; wye c. primary; delta d. primary; wye
____________________ are symbolic names that represent values stored in memory.
Fill in the blank(s) with the appropriate word(s).
If the low side test pressure is not know, the maximum pressure that should be used for leak testing an R-22 refrigeration system with hermetic compressor is:
A) 150 psig. B) 300 psig. C) 200 psig. D) 250 psig.