The ______ streamlines airflow through the core.

The ______ streamlines airflow through the core.

• A. Plenum
• B. Manifold
• C. Duct
• D. Shroud

Answer: (C)

Directing air through a defined channel is essential for efficient flow through the core. A duct provides this exact pathway, creating an uninterrupted, smooth route from the intake into the core. This focused channel helps maintain a steady air velocity, minimizes bends and pressure losses, and reduces turbulence, all of which improve the efficiency of the core’s airflow. A plenum, by contrast, is a larger chamber that collects and distributes air to multiple paths; it’s about spreading air out, not guiding it through a single straight path. A manifold likewise focuses on gathering or distributing air to multiple destinations rather than forcing a single, streamlined through-flow. A shroud can guide or confine flow around a component to reduce leakage and improve efficiency near the edges, but it doesn’t provide the primary through-path that directly streams air through the core. So, the component that best streamlines airflow through the core is the duct.

Directing air through a defined channel is essential for efficient flow through the core. A duct provides this exact pathway, creating an uninterrupted, smooth route from the intake into the core. This focused channel helps maintain a steady air velocity, minimizes bends and pressure losses, and reduces turbulence, all of which improve the efficiency of the core’s airflow.

A plenum, by contrast, is a larger chamber that collects and distributes air to multiple paths; it’s about spreading air out, not guiding it through a single straight path. A manifold likewise focuses on gathering or distributing air to multiple destinations rather than forcing a single, streamlined through-flow. A shroud can guide or confine flow around a component to reduce leakage and improve efficiency near the edges, but it doesn’t provide the primary through-path that directly streams air through the core.

So, the component that best streamlines airflow through the core is the duct.