A basic law concerning transformers is that all values of a transformer are ____ to its turns ratio.

a. exponentially related
b. inversely proportional
c. logarithmically related
d. proportional



d. proportional

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Commercial central heating and cooling systems refer to:

A) Single- to three-story office buildings only. B) Structures used for businesses in general. C) Retail shopping malls only. D) Single-story office buildings only.

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As the size of an angle increases the sine, tangent, and secant functions ____________________.

Fill in the blank(s) with the appropriate word(s).

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The device shown as a in the figure above is a _____



A) circuit breaker
B) thermal overload device
C) low-pressure switch
D) high-pressure switch

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15. What is an electrotachometer?

What will be an ideal response?

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