Which of the following statements with regard to Black Boxes used in modern aircrafts is/are correct? 1. They carry a beacon emitting red light pulses to facilitate underwater detection. 2. They record both the cockpit voice and flight data. 3. Their memory units are made using either stainless steel or titanium. Select the answer using the code given below:

ObjectiveMcq

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UPSC CSE PRELIMS2026General Studies Aviation SafetyHard

Which of the following statements with regard to Black Boxes used in modern aircrafts is/are correct?

They carry a beacon emitting red light pulses to facilitate underwater detection.
They record both the cockpit voice and flight data.
Their memory units are made using either stainless steel or titanium.

Select the answer using the code given below:

Correct Answer: B — 2 and 3 only

Explanation:

Statement 1 is rejected because black-box underwater locator beacons emit acoustic pulses, not red light. Statements 2 and 3 are accepted because the system records cockpit voice and flight data and uses hardened protective materials like stainless steel or titanium.