The expansion device in a mechanical refrigeration system _____

a. raises the temperature of the refrigerant
b. acts as a heat exchanger
c. provides a pressure drop
d. raises the pressure of the refrigerant


c

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Of the various project delivery methods described in the text, the oldest method is

A) design-build method (DB) method. B) design-bid-build (DBB) method. C) integrated project delivery (IPD) method. D) construction manager at risk (CMAR) method. E) design-negotiate-build (DNB) method.

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To judge a class of hogs, observe them from a distance of about how many feet as they move around?

A. 20 B. 15 C. 10 D. 4

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The primary (low-voltage) ignition system must be working correctly before any spark occurs from a coil. Which component is NOT in the primary ignition circuit?

A) Spark plug wires B) Ignition switch C) Ignition module D) Pickup coil

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How does a cuber typically make the ice cubes?

A) Water is circulated over a vertical tray that freezes water to it. B) Water fills a horizontal tray that is kept below freezing. C) Water is frozen in a cube shaped mold one cube at a time. D) Water fills a cylinder and freezes on the inner walls.

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