Which of the following options best defines the commonly used term 'Black Box'?

Options :
  1. It is a box in which high grade uranium is kept to prevent radiation
  2. It is a time capsule in which records of important events are kept to be opened at a later date
  3. It is a flight recorder in an aeroplane
  4. None of these

Answer and Explanation :-

Answer: Option 3


A flight recorder is an electronic recording device placed in an aircraft for the purpose of facilitating the investigation of aviation accidents and incidents. Commonly referred to as a black box, there are two common types of flight recorder, the flight data recorder (FDR) and the cockpit voice recorder (CVR). In some cases, the two recorders may be combined in a single unit. Flight recorders are required to be capable of surviving the conditions likely to be encountered in a severe aircraft accident. For this reason, they are typically specified to withstand an impact of 3400 g and temperatures of over 1,000 °C (1,830 °F) as required by EUROCAE (European Organization for Civil Aviation Equipment) ED-112.

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