In a Given Circuit, the Three-Phase Load Has a Power

question 10

Multiple Choice

In a given circuit, the three-phase load has a power requirement of 75 kVA, and the single-phase load requires an additional 50 kVA. Three 25-kVA transformers could be used to supply the three-phase power needed. The addition of the single-phase load, however, requires ____.

• A) one of the transformers to be larger
• B) two of the transformers to be larger
• C) all three of the transformers to be larger
• D) a fourth transformer

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Definitions:

Tukey's Multiple Comparison

A statistical method used to find the differences among group means in a set of data, while controlling for error rate.

F-Test

A statistical test used to compare two variances and determine if they are significantly different from each other.

ANOVA

Short for "Analysis of Variance," a statistical method used to compare the means of three or more samples to assess if at least one of the means is significantly different from the others.

Means Differ

A term indicating that there is a statistical difference between the averages of two or more groups.