1. With reference to INS Ikshak, consider the following statements:

1. It is the third vessel of the Survey Vessel (Large) – Sandhayak class.
2. It is the first SVL-class ship to be based at the Eastern Naval Command.
3. It has more than 80% indigenous content.

Which of the statements given above is/are correct?

• 1 and 3 only
• 2 and 3 only
• 1 only
• 1, 2 and 3

2. The Black-headed Ibis (Threskiornis melanocephalus) is correctly described by which of the following?

1. It is a wading bird belonging to the family Threskiornithidae.
2. It is the only native ibis species in its range with white plumage and black head.
3. It is endemic to India.

Select the correct answer using the code below:

• 1 and 2 only
• 2 and 3 only
• 1 only
• 1, 2 and 3

3. With reference to the UN Water Convention, consider the following statements:

1. It is a legally binding international framework.
2. It is serviced by the UNECE.
3. It replaced all existing bilateral river water treaties.

Which of the statements given above is/are correct?

• 1 and 2 only
• 2 and 3 only
• 1 only
• 1, 2 and 3

4. GPS spoofing differs from GPS jamming in that spoofing:

• Blocks satellite signals completely
• Uses physical damage to satellites
• Transmits fake signals that appear genuine
• Disables ground-based navigation aids

5. Which of the following are produced from non-coding DNA?

1. tRNA
2. rRNA
3. Regulatory RNA

Select the correct answer:

• 1 and 2 only
• 2 and 3 only
• 1, 2 and 3
• 3 only