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Daily current affairs quiz

Thursday, 22 October 2026

45 questions from 10 news topics of the day — free, with explanations and source articles.

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Quick quiz — 22 October 2026 0 of 10 answered

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Consider the following statements about the 2025 guidelines on closing coal mines:

1.Progressive closure work is done during mining, not only after it ends.

2.Closure funds held in escrow are released against closure work completed.

3.Once escrow is funded, closure becomes the Coal Controller's responsibility.

4.Schools and hospitals the miner built go to the State Government where practicable.

Which of the statements given above are correct?

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

From: SUVIKALP: SKOCH Gold for a Tool Ranking Uses of Former Coal Mines Open full article →

Iron emission lines labelled Fe I, Fe XXV and Fe XXVI have been studied in the X-rays of Centaurus X-3. Consider the following statements:

1.Fe I denotes neutral iron, while Fe II denotes iron that has lost one electron.

2.Fe XXVI denotes iron that keeps only one of its 26 electrons.

3.Fe XXV is a different chemical element from neutral iron because it has fewer electrons.

Which of the statements given above are correct?

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

From: Centaurus X-3: Four Iron Lines Hint at a Stream Feeding a Pulsar Open full article →

With reference to the bonding of carbon, consider the following statements:

1.In diamond, each carbon atom is bonded to four other carbon atoms in a rigid three-dimensional network.

2.In graphite, each carbon atom is bonded to three others in the same plane, and the planes are stacked in layers.

3.The carbon atoms joined by the triple bond in ethyne are sp-hybridised.

Which of the statements given above are correct?

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

From: Diamondiyne: Swedish Chemists Make a Diamond-Like Carbon Network Open full article →

Consider the following statements about the Carbon Offsetting and Reduction Scheme for International Aviation (CORSIA):

1.Participation by States in offsetting was voluntary in its pilot and first phases.

2.Offsetting covers an international route only when both States it links are included.

3.Its second phase, from 2027, exempts all developing countries.

Which of the statements given above are correct?

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

From: CORSIA: India Eyes 1% SAF Blend as 2027 Offsetting Phase Nears Open full article →

Consider the following statements:

1.Under the Vienna Convention on the Law of Treaties, 1969, a written agreement between States under international law is a treaty whatever its designation.

2.The Vienna Convention on the Law of Treaties, 1969 has not yet entered into force.

3.Article 102 of the United Nations Charter requires treaties of Members to be registered with its Secretariat.

Which of the statements given above are correct?

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

From: Badr MoU: Four Countries Team Up on Defence Production and Skills Open full article →

Consider the following statements about public-key cryptography:

1.Its security depends on keeping the public key secret.

2.In a digital signature, the private key signs and anyone holding the matching public key can verify the signature.

3.The two keys are mathematically related, yet working out the private key from the public key should be computationally infeasible.

Which of the statements given above are correct?

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

From: eMudhra: Eight Weak CA Keys, Browser Blocks and a Global TLS Exit Open full article →

Consider the following statements about surveillance radars:

1.A pulsed primary radar works out a target's distance from the time its signal takes to come back after reflection.

2.A three-dimensional surveillance radar gives a target's elevation in addition to its range and bearing.

3.A two-dimensional radar gives a target's height but not its range.

Which of the statements given above are correct?

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

From: LLLR-I: BEL's Rs 770 Crore AESA Radar Order to Track Small Drones Open full article →

Consider the following statements about the India-Bangladesh memorandum of 2022 on the Kushiyara river:

1.It lets each country withdraw water from a common stretch in the dry season, pending a formal sharing agreement.

2.It was signed on behalf of the two countries by their border-guarding forces.

3.It provides for a joint team to monitor the water actually withdrawn by each side.

Which of the statements given above are correct?

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

From: Kushiyara: Border Durga Immersions and the 153-Cusec Water MoU Open full article →

A bivalve native to tropical Indo-Pacific waters attaches itself to hard surfaces with byssal threads, is farmed on ropes along India's coasts, and has become established in Florida, far outside its native range. It is the:

zebra mussel Asian green mussel edible oyster giant clam

From: Vizhinjam Mussels: CMFRI Sea Farm Could Yield 3-4 Tonnes a Crop Open full article →

10.

Consider the following statements about agrivoltaics:

1.It uses the same piece of land for farming and for generating solar electricity.

2.Widening the spacing between rows of panels lets more light reach crops but can lower electricity output per unit of land.

3.A crop that gains from partial shade in a hot, dry climate can respond differently in cooler or cloudier conditions.

Which of the statements given above are correct?

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

From: Agrivoltaics: TERI Study Rates 47.5 Million Hectares as Suitable Open full article →

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