Which of the following is not listed as a product or process uncertainty?

A. Materials
B. Cost
C. Design
D. Channels


Answer: D

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A(n) ____ occurs when it is possible for one contact to open before another closes or for one contact to close before another opens.

A. bypass B. contact race C. off-delay D. on-delay

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The mixture is not stable and forms two liquid phases. One of the phases as a composition of 22% component 1, while other phase has a composition of 97% of component 1.

Consider the figure that provides the molar Gibbs free energy of mixing as a function of composition for a binary mixture.
If the overall composition of the mixture is 20% of component 1, is the mixture stable? If not, what are estimates of the compositions of the liquid phases that are in equilibrium?

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Backfill material that is compacted will be more dense than before it is compacted so, to fill a certain volume with compacted material, a larger volume of loose material will be required.

Answer the following statement true (T) or false (F)

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Why are time-delay fuses or HVACR-rated circuit breakers used?

A) They are required to meet current electrical codes. B) They are easier to install than standard fuses and circuit breakers. C) They are used to prevent nuisance tripping when the compressor starts. D) They are cheaper than standard fuses and circuit breakers.

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