RRB Group D GK Questions 2026

Razia was the only woman to sit on the throne of Delhi, so she was both the first and the last woman ruler of the Sultanate.

The petiole is the stalk that joins a leaf blade to the stem; it belongs to the leaf, not to the flower, and a leaf without one is called sessile.

The Sabarmati rises in the Aravalli Range in the Udaipur district of Rajasthan, then flows south-west across Gujarat and empties into the Gulf of Khambhat in the Arabian Sea after a course of about 371 km.

Balance is controlled by the inner ear, which holds the vestibular apparatus alongside the organ of hearing. It is made of three semicircular canals set at right angles to one another and two small sacs, the utricle and the saccule.

The speed of any wave is its frequency multiplied by its wavelength, so here 200 Hz times 2 m gives 400 metres per second.

A concave lens, also called a diverging lens, spreads out the rays that fall on it and so can never bring them to a real focus.

The atomic number of an element is by definition the number of protons in its nucleus, so an atomic number of 11 means 11 protons.

After partition left the port of Karachi outside India, Kandla in the Gulf of Kutch was developed as the main gateway for the northern and western hinterland, which makes it the first major port developed after independence.

The programme covers port modernisation and new port development, port connectivity, port linked industrialisation and coastal community development, and it is run by the Ministry of Ports, Shipping and Waterways.

The Airports Authority of India came into being in that year through the merger of the International Airports Authority of India, which ran the international gateways, with the National Airports Authority, which ran the domestic airfields and the air navigation services.

The port in Andhra Pradesh lies in a natural inlet sheltered by the Dolphin's Nose headland, which gives it great depth while keeping it protected, and it is the one Indian major port that works with a separate inner harbour and outer harbour.

The scheme was announced under the National Civil Aviation Policy of 2016 so that unserved and underserved airstrips could be linked to the main network at capped fares, with the gap met through a viability gap funding mechanism.

The airport is named after Kempegowda, the sixteenth century chieftain regarded as the founder of the city.

Cochin International Airport commissioned a solar plant large enough to meet its own consumption, and for that it received the Champion of the Earth award of the United Nations Environment Programme in 2018.

It sits far up the Hooghly river rather than on the open sea, which makes it the only riverine major port in the country, and it is the oldest of the major ports still working; the Haldia dock complex downstream was added to handle larger vessels that cannot reach Kolkata.

The Jawaharlal Nehru Port lies at Nhava Sheva across the harbour from Mumbai, in the Navi Mumbai area, and it handles the largest volume of container traffic of any port in India.

The first stretch of the Kolkata Metro, between Esplanade and Bhowanipore, was opened on 24 October 1984, almost two decades before any other Indian city had a metro.

Murlikant Petkar won the 50 metre freestyle at the 1972 Heidelberg Paralympic Games, and that remained India's only Paralympic gold for thirty-two years.

World Aquatics recognises six disciplines, namely swimming, diving, water polo, artistic swimming, open water swimming and high diving. Rowing is played on water but is governed by a separate international body, World Rowing, long known as FISA, and its Olympic events are listed under rowing, not aquatics.

The body was founded in 1908 in London during that year's Olympic Games, as the Federation Internationale de Natation, and the shortened form FINA stayed in use until it was renamed World Aquatics in 2023.