Railway GK Questions 2026

Rain is called acid rain when its pH falls below 5.6. Even clean rain is slightly acidic, because carbon dioxide in the air dissolves in it and forms weak carbonic acid, which brings its pH down to about 5.6.

Bretton Woods set up fixed, not floating, exchange rates. At the Bretton Woods Conference in New Hampshire, USA, in July 1944, 44 Allied nations agreed on a new post-war money order.

Each reaction is labelled with its correct type, so every pair is matched correctly. In I, iron is more reactive than copper and pushes it out of copper sulphate, a displacement reaction.

The nationwide drive opened on 20 October 2026 and continues to 8 November 2026, a window chosen so that it covers the days before the festival, when firecrackers are bought, as well as the days after it, when air quality usually stays poor.

Citizens have been asked to celebrate a clean and green Diwali in line with this mission, whose approach is to change everyday habits rather than wait for large interventions, and the pledge items follow from it directly: no firecrackers, earthen diyas and energy-efficient lights, no single-use plastic, waste segregated at…

The campaign is nationwide, but the cities covered under the National Clean Air Programme, numbering 130, have been singled out for special attention, because that is where the burden on air quality is heaviest and where a cracker-free festival makes the greatest difference.

The campaign was launched by this centre of WWF-India, working with the support of the Union Ministry of Environment, Forest and Climate Change, and it runs from 20 October to 8 November 2026.

Opened in 2025, it gave air access to more than ten districts of Bihar, cut the journey to Kolkata to about two hours and to Patna to roughly one, and it carries the state's longest runway at close to 2.8 km, long enough for A320 and B737 aircraft.

The correct answer is Rs 28,840 crore, the total provision for the next phase of the scheme launched on 4 July 2026 and running from FY 2026-27 to FY 2035-36.

That is the number of regional routes put into service across the country in the ten years since the scheme began, and it sits alongside the other headline totals of the decade: more than 3.68 lakh flights and 1.72 crore passengers.

The Regional Connectivity Scheme, named UDAN for Ude Desh ka Aam Nagrik, was launched on that day, and its promise of affordable yet commercially viable regional flying came out of the National Civil Aviation Policy adopted the same year.

The Son is a right-bank tributary that flows straight into the Ganga, meeting it near Patna in Bihar.

The International Day for the Preservation of the Ozone Layer is observed on 16 September, not 16 November. The date marks the signing of the Montreal Protocol on 16 September 1987, the treaty that phased out chlorofluorocarbons and other ozone-depleting substances.

The Bhakra Nangal Project is built on the Satluj, and its canals carry Satluj water to Punjab, Haryana and Rajasthan.

As its name says, the Act guarantees work to households in rural areas; towns and cities are outside its scope.

Of the four elements of xylem, only xylem parenchyma is made of living cells; tracheids, vessels and xylem fibres are dead at maturity.

Energy passes one way from the Sun through the food chain and is lost as heat, while nutrients are used again and again.

Nanda Devi National Park lies in the Chamoli district of Uttarakhand, around India's second-highest peak, Nanda Devi. The park is a vast glacial basin ringed by high peaks and was inscribed on the UNESCO World Heritage list in 1988 for its wild, untouched landscape.

A gamma ray is a photon of energy with no mass and no charge, so emitting it leaves the count of protons and neutrons unchanged.

Loktak Lake lies in the valley of Manipur, south of Imphal, and is the largest freshwater lake in north-east India.