A typical drum brake uses how many hold-down springs?

A) 6 B) 4 C) 2 D) 1


C

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____ is the process of selecting protective devices so that there is a minimum of power interruption in case of a fault or overload.

A. Transformation B. Masking C. Coordination D. Correlation

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Immigrants coming to the United States before 1860

A. depressed the economy due to their poverty. B. found themselves involved in few cultural conflicts. C. had little impact on society until after the Civil War. D. settled mostly in the South. E. helped to fuel economic expansion.

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System instrumentation is found on the _____.

a. site plan b. plan views c. P&ID d. isometrics

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What are the three structural members involved in post-and-beam construction?

A. Posts, beams, and planks B. Girders, joists, and planks C. Posts, joists, and rafters D. Girders, beams, and rafters

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