Certified Energy Auditor Practice Exam

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What is a characteristic feature of turbulent airflow?

Smooth and consistent movement

Random and chaotic movement

Turbulent airflow is characterized by random and chaotic movement of air. In this type of flow, the fluid particles move in multiple directions and at varying speeds, creating a complex pattern. This unpredictable nature leads to fluctuations in pressure and can result in mixing of air layers.

In contrast, the other options describe characteristics of laminar flow, where air moves smoothly in parallel layers with minimal mixing, maintaining a consistent and predictable flow path. Turbulent airflow is common in many real-world scenarios, such as in the atmosphere and various industrial applications, where the interaction of different air currents and environmental factors contributes to the observed chaotic behavior. Understanding the nature of turbulent airflow is crucial for applications in energy auditing, HVAC systems design, and aerodynamic studies, as it affects factors like resistance, heat transfer, and efficiency.

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Predictable and steady flow

Straight and direct path

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