Railway GK Questions 2026

In August 2008 the eastern embankment of the Kosi gave way at Kusaha, upstream of the Bhimnagar barrage and inside Nepal.

The Karmanasa rises on the Kaimur plateau, flows north along part of the boundary between Bihar and Uttar Pradesh and meets the Ganga near Chausa in Buxar district, the same place at which the Ganga enters Bihar.

The Kosi project that followed the 1954 agreement between India and Nepal has three parts: a barrage at Bhimnagar on the border, long embankments on both banks of the river downstream, and canals, of which the Eastern Kosi Main Canal is the largest.

Kabartal, also called Kanwar Jheel, lies in Begusarai district and is an ox-bow lake left behind by the Burhi Gandak.

The Son rises at Amarkantak in Madhya Pradesh, the same plateau that gives birth to the Narmada, flows north-east through Rohtas and joins the Ganga near Maner, a little west of Patna.

The Gandak rises in Nepal, where it is called the Narayani or the Sapt Gandaki, enters Bihar at Valmikinagar in West Champaran and flows south-east to meet the Ganga at Sonpur, across the river from Patna.

The Ganga comes into Bihar from Uttar Pradesh near Chausa, flows from west to east for about 445 kilometres and leaves the state for West Bengal near Rajmahal, splitting Bihar into the North Bihar plain and the South Bihar plain on the way.

The Kosi earns the name because it brings an exceptionally heavy load of silt down from Nepal, drops it the moment it reaches the flat North Bihar plain, raises its own bed above the surrounding land and then breaks out into a new channel.

The correct answer is A, Mirzapur and Sonbhadra, the Vindhyan districts of the south-east, where dry deciduous forest grows on hilly ground and the tendu tree is common; its leaves are collected and dried to roll bidis and give seasonal work to thousands of forest dwellers, along with khair for…

Heavy rainfall and a high water table there support tropical moist deciduous forest in which sal, Shorea robusta, is the chief tree, in Lakhimpur Kheri, Bahraich, Pilibhit, Shravasti, Balrampur and Gorakhpur, and Dudhwa National Park and the Pilibhit Tiger Reserve lie inside this belt.

Formed on the Vindhyan and Deccan trap rocks of the south, it is clayey, dark and able to hold water through a dry spell, which is why the gram, wheat, oilseed and pulse crops of Jhansi, Jalaun, Hamirpur and Banda depend on it.

Bhur is the raised sandy soil of the upper doab in districts such as Meerut, Bulandshahr and Aligarh, blown into low ridges by the wind, poor in moisture and organic matter, and fit for bajra, barley and, where irrigation reaches, for sugarcane.

Usar, also called reh, is the saline and alkaline soil of districts such as Raebareli, Unnao, Hardoi, Kanpur and Aligarh, where sodium salts gather on the surface; gypsum, which is calcium sulphate, replaces the sodium on the clay particles with calcium, the sodium is then washed away by drainage, and…

Bhangar is the old alluvium of the higher ground away from the present river channels; it is darker, more clayey and dotted with the lime concretions called kankar, and it is not renewed by fresh silt.

Western disturbances travel from the Mediterranean across Iran and Pakistan and give the plains a few spells of light rain in December, January and February, exactly when wheat, gram, barley and mustard are standing in the field, so farmers call this shower the golden drops.

It is a hot, dry and dusty wind that blows from the west over the northern plains in the afternoons of May and early June, pushing the temperature past forty-five degrees Celsius in Agra, Jhansi and Banda and causing heat stroke, and it stops only when the monsoon arrives.

The monsoon current enters from the Bay of Bengal in the south-east and loses moisture as it travels up the plain, so the eastern districts and the Terai of Gorakhpur, Bahraich and Lakhimpur Kheri are the wettest, while Mathura, Agra and the Bundelkhand districts of Jhansi, Jalaun and Banda are…

This branch strikes the Ganga delta, is turned west by the Himalaya and moves up the Ganga plain, so it reaches eastern Uttar Pradesh about the middle of June and then travels on to the west, which is why the east of the state gets both earlier and heavier rain.

Placed in a cavern under about 1,300 metres of rock at Pottipuram in the Bodi West Hills, it is designed to catch atmospheric neutrinos and measure how they change from one flavour to another, the phenomenon of neutrino oscillation; the magnetic field lets it tell a neutrino from an antineutrino.

The site was chosen for its flat, seismically quiet ground, the Union Cabinet approved the project in principle in 2016 and in full in April 2023, and it is being executed by the Department of Atomic Energy and the Department of Science and Technology with IPR, RRCAT Indore and IUCAA…