Which type of circuit is uncommon in HVACR work?

a. Series circuit
b. Resistive circuit
c. Parallel circuit
d. Transformer-powered circuit


a. Series circuit

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Calculate the load center length for a branch circuit consisting of the following noncontinuous loads

125A at 80' from the source 75A at 110' from the source 50A at 100' from the source a. 95.1' b. 92' c. 93' d. 94.6'

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What component of a heat exchanger holds the tubes in a tube bundle apart so they do not touch one another?

A) Baffles B) Tube sheet C) Tube bundle D) Spacer rods

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Splices made with conductors of different sizes can be most easily accommodated using a(n) _____.

a. heat-shrink kit b. split bolt connector c. taped splice d. expanding foam sealant

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The fastest growing mass communication medium is ________

Fill in the blank(s) with correct word

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