The output of a certain bandpass filter is one-fourth the value of the input power. The dB power gain for the circuit is
A) 6 dB B) 10 dB C) -6 dB D) 0.25 dB
C
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____ contracts are usually the owner's choice of last resort because they can place the owner in a vulnerable financial position.
A. Cost-plus B. Unit-price C. Contingency D. Fixed cost
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A defrost timer is normally used to stop the compressor periodically and energize a defrost heating element when the refrigeration system has developed too much frost
Indicate whether the statement is true or false
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The output unit of a PC performs calculation and logical decisions
Indicate whether the statement is true or false
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Using steel piping in a refrigeration system that uses ammonia will prevent _____
A) fire B) explosion C) corrosion D) contamination
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