When is the optimal time for determining a system's balance point?

A) after installing electrical strip heat B) before purchasing a heat pump system
C) when outdoor temperatures are moderate D) when you run the system at full capacity


B

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A diamond with a solid colored triangle at the top and bottom that are connected by a vertical line represents a/an __________________.

A. accumulator B. filter C. reservoir D. cooler

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Compared to relay logic systems, solid-state logic systems:

A) Use less power to operate. B) Consume about the same amount of power to operate. C) Use more power to operate. D) Consume no power to operate.

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Tying one input of a NAND gate directly to ground

A) forces the output to 0. B) has no effect on the output. C) creates an invalid condition. D) forces the output to 1.

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Binary counters are one type of circuit that can be constructed from flip-flops

Indicate whether the statement is true or false

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