1. Consider the following statements regarding Exercise Cyclone:

1. It is an annual naval exercise between India and Egypt.
2. The exercise is conducted alternatively in India and Egypt.
3. The third edition (2025) is being held at the Mahajan Field Firing Range, Rajasthan.

Which of the above statements are correct?

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

2. Consider the following statements about Pulmonary Arterial Hypertension (PAH):

1. It is caused by narrowing and thickening of the small arteries in the lungs.
2. It increases the workload on the heart, particularly the left ventricle.
3. PAH is curable with long-term medication and therapy.

Which of the statements given above is/are correct?

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

3. With reference to the R-37M missile, recently in the news, consider the following statements:

1. It is a long-range air-to-air missile developed by Israel and used by NATO forces.
2. It can travel at hypersonic speeds of up to Mach 6.
3. The missile is capable of targeting high-value aerial assets beyond visual range.

Which of the statements given are correct?

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

4. The Quipu Superstructure significantly affects astronomical observations due to which of the following phenomena?

1. Gravitational lensing
2. Cosmic Microwave Background fluctuations
3. Radioactive decay interference
4. Distortion of the Hubble Constant measurements

Select the correct answer using the code below:

• 1, 2 and 4 only
• 2 and 3 only
• 1 and 4 only
• 1, 2, 3 and 4

5. Which of the following is true about the Harmonised System (HS) Code?

1. It is developed by the United Nations (UN).
2. It is used globally for the classification of traded goods.
3. India uses a 10-digit code for customs and trade classification.
4. The HS Code is updated every 10 years by the World Customs Organization (WCO).

Select the correct answer using the code below:

• 1, 2, and 4 only
• 2 only
• 1, 3, and 4 only
• 2 and 4 only