Blaze Through the Certified Fire Protection Specialist (CFPS) Exam 2025 – Ignite Your Career Now!

Question: 1 / 400

What happens to the effective ventilation area of an opening as the layer of smoke descends during a flashover?

Increases

Decreases

As a fire progresses and smoke begins to descend during a flashover, the effective ventilation area of an opening decreases. This is primarily due to the way smoke behaves in a fire environment. As the smoke layer descends, it can block or partially obstruct the openings that would typically allow for the upward flow of air. This phenomenon reduces the overall ventilation effectiveness, meaning that the area through which fresh air can enter and smoke can exit is diminished. The accumulation of smoke near the openings not only physically blocks part of the ventilation path but also affects the pressure dynamics within the space, further inhibiting adequate ventilation and leading to a higher concentration of smoke in the area. Understanding these dynamics is crucial for fire protection specialists when designing and implementing strategies for smoke control and ventilation in buildings subjected to fire scenarios.

Get further explanation with Examzify DeepDiveBeta

Remains the same

Fluctuates

Next Question

Report this question

Download Certified Fire Protection Specialist (CFPS) Practice PDF Study Guide
Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy