Railway GK Questions 2026

Archimedes used his principle to test whether the crown of King Hiero II of Syracuse was pure gold. The principle says that a body immersed in a fluid is buoyed up by a force equal to the weight of the fluid it displaces.

Gravitational force is directly proportional to each mass, so doubling one mass doubles the force. Newton law of universal gravitation states that the force between two bodies is F equal to G m1 m2 divided by r squared.

Released at the ministry's World Hydrogen and Fuel Cell Day programme, the report reviews the hydrogen standards the country already has, points to the areas that still need attention and lists the steps needed to deal with them.

The National Green Hydrogen Mission was approved in January 2023 with this outlay, and the money is spread across production of the gas, the manufacture of equipment, pilot projects, research and training.

More than a hundred officials, industry representatives, researchers and experts attended two panel discussions there, one on standards for hydrogen and one on safety at hydrogen facilities, and a gap assessment of the country's hydrogen standards was released.

The Council recommended changes to sections 68, 129 and 130 of the CGST Act so that a vehicle carrying goods may be stopped only when there is specific intelligence about it and an officer of at least this rank has cleared the action.

The Council recommended cutting the ceiling on the general penalty under section 125 of the CGST Act from 25,000 rupees to 10,000 rupees.

The Council recommended the complete withdrawal of arrest powers under the goods and services tax by deleting this section from the CGST Act, 2017, a step presented as part of a trust-based tax system that still keeps deterrence against fraud.

Among the decriminalisation measures taken at the 57th meeting of the GST Council, the money threshold at which a prosecution may be launched was lifted to five crore rupees, so that criminal proceedings are reserved for large cases of fraud and evasion rather than ordinary disputes over tax.

The initiatives he cited as creating capability in emerging fields were the Deep Ocean Mission, the Quantum Mission, artificial intelligence, cyber security and the Anusandhan National Research Foundation, so options A, B and C all appear on that list.

The minister referred to this target together with the opening of the nuclear sector to private participation, and described nuclear power as an important clean-energy source for future requirements, among them the demand created by artificial intelligence and data centres.

The minister described this as the current size of the space economy and said it could reach USD 45 to 46 billion over the next 8 to 10 years if the present momentum continues, crediting the expansion to the opening of the sector and the entry of a wider set…

The minister cited this estimate to show how much livelihood depends on the sector, which is the reason seed quality and modern infrastructure matter well beyond the rearing shed.

The trap here is option C: 74 per cent is Assam’s share of Eri silk production, amounting to 2,131 metric tonnes, and the two shares are routinely swapped in question papers, so the pairing must be learnt together.

The Central Silk Board’s Silkworm Seed Production Centre there received a newly constructed grainage building and cold storage facility, inaugurated by the Union Minister of State for Textiles under the North-East Region Textile Promotion Scheme.

Through Samriddhi Kendras it offers tele-consultation and diagnostics, digital classrooms and skilling, e-governance, banking, soil testing, drone-based agricultural services, employment help and e-commerce under one roof, and it is being piloted at Umri in Madhya Pradesh, Chaurawala in Uttar Pradesh and Narakoduru in Andhra Pradesh.

These projects are funded through the Digital Bharat Nidhi and are meant to carry 4G service into remote and uncovered places that telecom operators had not reached because the commercial case was weak, so the spending bridges a digital divide rather than chasing revenue.

The rules, notified by the Department of Telecommunications under the Telecommunications Act, 2023, came into effect on 1 January 2025 and set up a uniform and transparent framework for laying telecom infrastructure, with rationalised charges and time-bound processing.

The correct answer is viaducts, which take about Rs 8,300 crore, the biggest single item in the structural break-up.

He is the Minister for Road Transport and Highways, and the document was released by him at that Chintan Shivir; the Authority then put it out to mark National Wildlife Week, observed from 2 to 8 October 2026.