Gas Heat ESCO Practice Exam

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An inclined manometer measures:

  1. pressures above 1 in. WC

  2. temperatures below 32°F

  3. pressures below 1 in. WC

  4. temperatures above 212°F

The correct answer is: pressures below 1 in. WC

An inclined manometer is used to measure small pressure differences between two points. It is designed to measure pressures that are below 1 in. WC (water column). For this reason, options A and D are incorrect as they refer to pressures above and temperatures above the specified values, respectively. Option B is also incorrect because manometers measure pressure, not temperature. Therefore, the correct answer is C, pressures below 1 in. WC.

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