What is the line sweeping on a radar display called?

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Multiple Choice

What is the line sweeping on a radar display called?

Explanation:
Plan Position Indicator describes the circular, plan-view radar display that uses a rotating sweep line to show the radar’s current bearing. In a PPI, range is shown as concentric rings and bearing around the edge, so the sweeping line traces the direction the radar is looking and helps plot targets on the two‑dimensional map. This display type is the standard name for a radar presentation that inherently features that sweeping line, which is why it’s the best choice. The other terms do not refer to the display type—their usage is generic or not standard for naming this particular presentation.

Plan Position Indicator describes the circular, plan-view radar display that uses a rotating sweep line to show the radar’s current bearing. In a PPI, range is shown as concentric rings and bearing around the edge, so the sweeping line traces the direction the radar is looking and helps plot targets on the two‑dimensional map. This display type is the standard name for a radar presentation that inherently features that sweeping line, which is why it’s the best choice. The other terms do not refer to the display type—their usage is generic or not standard for naming this particular presentation.

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