When compared to rafters, ridgeboards are typically _____.

a. half-again as wide
b. one dimension wider
c. one dimension narrower
d. twice as wide


Answer: B

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What type of electrical current reverses its direction periodically?

A) Fission B) Direct current C) Random current D) Alternating current

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Most brake pedal installations are an example of what is called a ____-class lever.

A. first B. second C. third D. fourth

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When the base of an NPN transistor is more negative than the emitter, it is

A) shorted. B) OFF. C) ON. D) cannot tell.

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A dimension is a measurement written as a _____

A) symbol B) number C) range D) letter

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