Nonconductive grommets or plastic bushings should be used to prevent a destructive galvanic reaction
between steel framing members and _____.
a. copper piping
b. aluminum siding
c. nonmetallic sheathed cable
d. PVC piping
a
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____________________ are stationary inductive devices that transfer electric energy from one circuit to another by induction.
Fill in the blank(s) with the appropriate word(s).
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Bioenergy crops are a renewable energy source
Indicate whether the statement is true or false
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Openings are rarely avoided in fire-rated walls.
Answer the following statement true (T) or false (F)
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Two technicians are discussing the length of an actuators' duty cycle. What type signal are they most likely discussing?
A) AC current B) Pulse width modulation C) Analog D) None of these
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