A
To provide acoustic countermeasures that distract and lure incoming homing torpedoes away from the vessel
B
To accelerate the vessel in shallow coastal waters during littoral combat
C
To pump water through external nozzles for high-speed marine propulsion
D
To map the ocean floor using high-frequency sonar pulses for underwater navigation
Correct answer: (a) To provide acoustic countermeasures that distract and lure incoming homing torpedoes away from the vessel
Explanation
A Torpedo Decoy System is a defensive acoustic countermeasure launched to distract and lure incoming homing torpedoes away from the vessel, making B correct. Option B describes waterjet propulsion, option D describes sonar systems, and option C also describes waterjet propulsion mechanisms.
Same topic · past papers
UPSC has asked this before
These previous-year questions sit on the same topic. Open one to practise the earlier ask.
-
2025 · Q44 · UPPGS
With reference to 'Atal Tunnel' which of the following statements is/are correct? 1. This tunnel is the world's longest highway tunnel. 2. This tunnel is built in the Pir Panjal range of Himalayas. Select the correct answer from the code given below: -
2025 · Q49 · UPPGS
Given below are two statements, one is labelled as Assertion (A) : and the other as Reason (R). Assertion (A): Buland Darwaja was constructed at Fatehpur Sikri by the Mughal emperor Akbar. Reason (R): Akbar built this monument to commemorate the birth of his son Jahangir.