CWEA Maintenance Technologist Practice Test 2026 – Complete Exam Prep

Question: 1 / 400

Which instrument is typically used to measure pressure?

Manometer

A manometer is specifically designed to measure pressure. It operates based on the principle of balancing a column of liquid against the pressure being measured. Typically used for measuring the pressure of gases or liquids, a manometer provides readings in units such as pascals, atmospheres, or inches of mercury, depending on the specific application. This instrument can be found in various systems, including HVAC, water supply, and industrial processes, where monitoring pressure is crucial for safety and efficiency.

In contrast, an ammeter measures electric current, a voltmeter measures electric potential difference, and a thermometer measures temperature. Each of these instruments serves a distinct purpose in various fields, illustrating the specialized nature of measurement tools based on what physical parameter is being assessed.

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Ammeter

Voltmeter

Thermometer

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