Railway GK Questions 2026

Andre Geim and Konstantin Novoselov of the University of Manchester shared the Nobel Prize in Physics in 2010 for groundbreaking experiments on graphene, the single atom thick sheet of carbon they had lifted from graphite with ordinary adhesive tape.

The Japanese physicist Sumio Iijima, then at the NEC laboratory, reported multi walled carbon nanotubes in 1991 using a transmission electron microscope, and the date and the name are the facts asked.

Buckminsterfullerene, discovered in 1985, has sixty carbon atoms arranged in a closed cage of twenty hexagons and twelve pentagons, exactly the pattern of a stitched football, and the twelve pentagons are what allow a flat hexagonal sheet to curve into a closed ball.

The American physicist Richard Feynman delivered the talk There's Plenty of Room at the Bottom to the American Physical Society at Caltech in December 1959, in which he argued that there is no law of physics forbidding the manipulation of individual atoms, and the lecture is treated as the conceptual…

The Japanese engineer Norio Taniguchi used the word nanotechnology in 1974 to describe machining to tolerances of a nanometre, and that is the coinage examiners expect.

The prefix nano stands for ten raised to the power minus nine, so one nanometre is one billionth of a metre, which is also ten angstrom, and nanotechnology is defined as work in the band of one to one hundred nanometres.

Kalpakkam, on the coast south of Chennai, carries the Madras Atomic Power Station with its two indigenous pressurised heavy water reactors and the Indira Gandhi Centre for Atomic Research, the centre of India's fast breeder reactor programme under the Department of Atomic Energy.

Coimbatore, on the Noyyal river below the Palakkad Gap, earned the name from its cotton mills, textile machinery works and pump industry, and the nearby Tiruppur is the knitwear and hosiery centre.

The Thirukkural of the poet Thiruvalluvar has 1,330 couplets arranged in 133 chapters of ten each, grouped into three parts on virtue, wealth and love, and the 133 foot statue of Thiruvalluvar off Kanyakumari records those 133 chapters.

On 10 July 1806 the Indian sepoys of the garrison at Vellore in present day Tamil Nadu rose against their British officers over new regulations on dress, beards and caste marks, and the rising, though crushed within a day, is remembered as the first major mutiny of Indian soldiers, half…

The Nilgiri Biosphere Reserve, notified in 1986, was the first biosphere reserve in India and spreads across Tamil Nadu, Kerala and Karnataka, taking in Mudumalai, Mukurthi, Bandipur, Wayanad and Silent Valley.

The Nilgiri tahr, a wild goat found only on the higher slopes of the Western Ghats in Tamil Nadu and Kerala, is the state animal of Tamil Nadu, and the Mukurthi national park and the Anamalai hills are its strongholds.

Tamil Nadu elects 39 members to the Lok Sabha and 18 to the Rajya Sabha, and its Legislative Assembly has 234 seats; the Legislative Council was abolished in 1986, so the legislature is unicameral.

The Kallanai, called the Grand Anicut by the British, was built across the Kaveri near Tiruchirappalli by the early Chola king Karikala, and it still spreads the river's water across the delta of Thanjavur, which is why that delta is called the rice bowl of Tamil Nadu.

Mahabalipuram or Mamallapuram, the port town of the Pallavas on the Coromandel coast, carries the rock cut Pancha Rathas and the relief called Arjuna's Penance from the reign of Narasimhavarman I, and the structural Shore Temple from that of Narasimhavarman II, Rajasimha; the group was inscribed as a World Heritage…

The Brihadeeswarar or Peruvudaiyar temple at Thanjavur, also called the Big Temple, was completed about 1010 CE by Rajaraja Chola I, and its tall vimana of granite is the high point of Dravidian temple architecture; it is the core of the Great Living Chola Temples inscribed as a World Heritage…

Doddabetta, about 2,637 metres high and close to Udhagamandalam or Ooty, is the highest point in Tamil Nadu and the highest in the Nilgiri range, where the Western and Eastern Ghats meet.

Madras State was created on 1 November 1956 under the States Reorganisation Act, and the change of name to Tamil Nadu took effect on 14 January 1969 under the Madras State Alteration of Name Act.

Rana Kumbha of Mewar raised the nine-storeyed Vijay Stambha inside Chittorgarh fort in about 1448 to mark his victory over Mahmud Khilji of Malwa, and he also built the great hill fort of Kumbhalgarh, whose outer wall is among the longest fortification walls in the world.

The Gateway of India on the Apollo Bunder waterfront at Mumbai was designed by the Scottish architect George Wittet in a style that blends Gujarati work with Islamic arch forms, and it was completed in 1924 to commemorate the landing of King George V and Queen Mary in 1911.