1. Consider the following statements regarding SONAR technology:
1. The term SONAR stands for Sound Navigation and Ranging.
2. It operates on the principle of an echo, using ultrasonic waves to estimate the distance, direction and speed of underwater objects.
3. Sound waves travel faster in water than in air.
Which of the statements given above are correct?
(a) 1 and 2 only
(b) 2 and 3 only
(c) 1 and 3 only
(d) 1, 2 and 3
2. Consider the following statements regarding Artificial Intelligence safety:
1. Air-gapping physically disconnects a computer system from external networks.
2. Sandboxing tests a system within a controlled and restricted environment.
3. AI containment seeks to restrict access to networks and sensitive information.
Which of the statements given above are correct?
(a) 1 and 2 only
(b) 2 and 3 only
(c) 1 and 3 only
(d) 1, 2 and 3
3. Consider the following countries:
1. Bangladesh
2. Bhutan
3. India
4. Maldives
5. Myanmar
6. Nepal
7. Sri Lanka
8. Thailand
How many of the above are members of BIMSTEC?
(a) Only five
(b) Only six
(c) Only seven
(d) All eight
4. Consider the following statements regarding the Line of Actual Control:
1. It is the de facto dividing line between Indian- and Chinese-controlled territories.
2. The western sector of the boundary dispute includes Ladakh and Aksai Chin.
3. It is a mutually demarcated and legally recognised international boundary.
Which of the statements given above are correct?
(a) 1 and 2 only
(b) 2 and 3 only
(c) 1 and 3 only
(d) 1, 2 and 3
5. Consider the following statements regarding preventive detention in India:
1. It seeks to prevent an anticipated future threat rather than punish a past offence.
2. Detention beyond three months generally requires an Advisory Board to report sufficient cause.
3. The detained person must ordinarily be informed of the grounds and allowed to make a representation.
Which of the statements given above are correct?
(a) 1 and 2 only
(b) 2 and 3 only
(c) 1 and 3 only
(d) 1, 2 and 3
6. Consider the following statements:
Statement-I: An order under Section 163 of the Bharatiya Nagarik Suraksha Sanhita can restrict activities or assemblies to prevent urgent danger or public disorder.
Statement-II: Preventive detention, unlike a prohibitory order, directly authorises the detention of an individual.
Which one of the following is correct?
(a) Both statements are correct, and Statement-II explains the distinction in Statement-I
(b) Both statements are correct, but Statement-II does not explain the distinction in Statement-I
(c) Statement-I is correct, but Statement-II is incorrect
(d) Statement-I is incorrect, but Statement-II is correct
7. Consider the following statements regarding PFAS:
1. They are commonly called forever chemicals because many of them persist in the environment.
2. Conventional treatment plants may fail to remove dissolved PFAS effectively.
3. Ordinary chlorination can reliably destroy all PFAS compounds in drinking water.
Which of the statements given above are correct?
(a) 1 and 2 only
(b) 2 and 3 only
(c) 1 and 3 only
(d) 1, 2 and 3
8. Consider the following pairs:
| Treatment method | Principal mechanism |
| Activated carbon | Adsorption of contaminants |
| Reverse osmosis | Membrane-based separation |
| Ion exchange | Exchange using specialised resins |
Which of the pairs given above are correctly matched?
(a) 1 only
(b) 1 and 2 only
(c) 2 and 3 only
(d) 1, 2 and 3
9. Consider the following statements regarding diesel production:
1. Diesel is obtained during the refining and fractional distillation of crude oil.
2. Hydrocracking can convert heavier petroleum fractions into diesel-range fuels.
3. Diesel is generally lighter and more volatile than petrol.
Which of the statements given above are correct?
(a) 1 and 2 only
(b) 2 and 3 only
(c) 1 and 3 only
(d) 1, 2 and 3
10. Consider the following statements regarding the geography of Russia:
1. Russia shares a land boundary with Norway.
2. Russia shares a land boundary with China.
3. Russia has coastlines along both the Baltic Sea and the Black Sea.
4. Russia shares a land boundary with Afghanistan.
How many of the statements given above are correct?
(a) Only one
(b) Only two
(c) Only three
(d) All four
ANSWERS for Daily Current Affairs Prelims Practice (14-10-2026):
1. Answer: (d)
2. Answer: (d)
3. Answer: (c)
4. Answer: (a)
5. Answer: (d)
6. Answer: (a)
7. Answer: (a)
8. Answer: (d)
9. Answer: (a)
10. Answer: (c)
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