Certified Biomedical Equipment Technician (CBET) Practice Exam 2026 - Free Biomedical Equipment Technician Practice Questions and Study Guide

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What characterizes a passive scavenging system?

Uses mechanical suction

Relies on passive flow of gas

A passive scavenging system is characterized by its reliance on the natural movement of gases rather than any mechanical source. This system typically utilizes gravity and pressure gradients to allow anesthetic gases to flow out of the system without the need for powered suction.

In contrast to active systems, which may use mechanical pumps that require electrical power to create suction and actively manage gas flow, passive systems function effectively without such requirements. They capitalize on the physical principles of gas flow, enabling the gas to exit the environment naturally, thus ensuring safety without the need for complex electronic monitoring or active pressure management.

This simplifies the installation and maintenance of the system, making passive scavenging systems effective in various clinical situations where powered systems may not be practical or necessary.

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Requires electrical power to operate

Involves active monitoring of pressure

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