Subject: Defence

Which of the following statements with regard to drone swarms is/are correct?
1. They use Terahertz band of frequency to communicate with the command centre.
2. Individual drones in the swarm can communicate with other drones in the swarm.
3. GPS Spoofing is a commonly used technique to counter drone swarm attack.

Which of the following statements with regard to stealth technology is/are correct?
1. Stealth objects have a very small radar cross-section and are coated with Radar Absorbing Material.
2. Stealth objects can be detected using specific frequencies.
3. Stealth objects are coated with metamaterials to increase the scattering of electromagnetic radiation.

The Bureau of Indian Standard (BIS) recently introduced a national standard to test and assess bomb disposal system. Which of the following is/are correct?
1. The new standard is known as IS 19445 : 2025.
2. It will improve interoperability of equipment across agencies.
3. It was developed by TBRL, DRDO in collaboration with the 30th Central Scientific Research Institute, Russia.

Which one of the following pairs is NOT correctly matched?
(Indian Army Corps) : (Headquarters)

Which of the following items of defence hardware is/are manufactured in India?
1. Su-30 MKI Fighter Jets
2. T-90 MK-III Tanks
3. Akula Class Submarine

Consider the following statements about Mission Sudarshan Chakra of India:
1. It aims to enhance India’s air defence, ballistic missile defence and aerial offensive capabilities.
2. Designed to enhance rapid, precise, and powerful defence responses, reinforcing India’s strategic autonomy.
3. One of the aims is to cover all public places of India by an expanded nationwide security shield by 2035.