A refrigeration system that uses the evaporator of a higher-temperature system to cool the condenser of a lower-temperature refrigeration system is called a:
A) Transcritical system. B) Cascade system.
C) Subordinate system. D) Supercritical system.
B
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Gerbils are monogamous. What significance does this have with regard to a colony of gerbils?
What will be an ideal response?
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Find I? and V? in the circuit of Fig. 13.142 below using PSpice.
 figure 1.png)
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What type of detector is a circuit designed to respond only to frequency changes of the input signal?
A. Slope B. Ratio C. Quadrature D. Synchronous
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A big reason that communicating systems improve efficiency is
A) they can make intelligent decisions based on actual operating conditions B) they monitor and correct power factor and C) relays consume large amounts of power in conventional systems D) they switch faster than relay systems
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