In a three-position, double-solenoid, spring return valve, there are several options for the center position of the spool. This symbol above indicates a(n) ____ center.

a. open
b. closed
c. float
d. tandem


d. tandem

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? Identify and state the historical significance of John Singleton Copley.

What will be an ideal response?

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When a developer first considers the idea of a project, he may quickly calculate the anticipated cost of the work using a ____ estimate.

A. piece-rate B. multi-rate C. single-rate D. volume

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What are some benefits of synthetic, nontraditional hardscape materials?

What will be an ideal response?

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The free diameter of an external 5100-775 retaining ring is 7.243.

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

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