DGCA CPL Technical General Practice Questions - DGCA Commercial Pilot License (CPL) Technical General Exam

What is the primary cause of induced drag on an aircraft wing?

Skin friction between the air molecules and the wing surface. The physical profile of the wing disturbing the air path. Airflow pressure differential between the upper and lower surfaces spilling around the wingtips to form vortices. Interference of the airflow at the junction of the wing and fuselage.

Correct Answer:

Airflow pressure differential between the upper and lower surfaces spilling around the wingtips to form vortices.

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