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

The correct answer, identifying the three elements of the fire combustion triangle, is oxygen, heat, and fuel. This triangle represents the essential components needed for a fire to ignite and sustain combustion.

Oxygen is crucial as it supports the chemical reactions that occur during combustion. Without a sufficient supply of oxygen, a fire cannot start or continue burning.

Heat is the energy source that raises the material to its ignition temperature, allowing combustion to begin. It can come from various sources, such as friction, electrical sparks, or open flames.

Fuel is any combustible material that can burn, including solids, liquids, or gases. For a fire to occur, there needs to be a combustible substance that can react with oxygen in the presence of heat.

When all three elements are present and interacting, a fire can ignite and propagate. If any one of these elements is removed, the fire will be extinguished. Understanding this triangle is critical for fire prevention and safety, especially in medical settings where biomedical equipment may be present.