Name five good insulating materials
What will be an ideal response?
air, mica, rubber, teflon, glass.
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Many electric utility companies generate electricity by using ______________________ generators powered by coal, hydro, nuclear, natural gas, or oil.
Fill in the blank(s) with the appropriate word(s).
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Coaxial means that one or more features have similar axes.
Answer the following statement true (T) or false (F)
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What is the conversion of 20 inches of mercury to psi?
A) 40 psi B) 10 psi C) 2 psi D) 60 psi
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In a variable frequency drive, the ____ control sets the maximum speed of the motor.
A. minimum hertz B. maximum hertz C. current limit D. volts per hertz
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