RRB Group D GK Questions 2026

This soil bacterium naturally transfers a part of its tumour inducing plasmid, called the Ti plasmid, into the cells of a dicotyledonous plant and causes crown gall disease; genetic engineers disarm the plasmid, insert the gene they want and use the bacterium as a vector, which is why it is…

A restriction endonuclease recognises a short palindromic sequence in DNA and cuts both strands there, leaving sticky ends that can pair with another piece cut by the same enzyme; Hind II was the first such enzyme to be discovered and EcoRI from Escherichia coli is the most widely used.

The correct answer is B, Gopal Krishna Gokhale, who founded the Servants of India Society at Poona in 1905 to train men who would devote their lives to public service on small salaries, and who was the moderate leader Gandhi acknowledged as his political guru.

He became the youngest president of the Indian National Congress in 1923 and later the first Education Minister of independent India, whose birthday is observed as National Education Day.

The correct answer is B, Sarojini Naidu, who presided over the Kanpur session of 1925 and so became the first Indian woman to hold the office; she is called the Nightingale of India for her poetry and later became the first woman Governor of a province in independent India.

The correct answer is B, Subhas Chandra Bose, who used the line while addressing the soldiers of the Indian National Army, and whose other calls, Dilli Chalo and Jai Hind, come from the same years in the east.

The correct answer is A, the Khudai Khidmatgar, the Servants of God, a non-violent volunteer force of the North-West Frontier Province whose members wore red shirts and joined the civil disobedience movement in large numbers.

He was thrice president of the Indian National Congress, the first Indian to be elected to the British House of Commons, and the author of Poverty and Un-British Rule in India, in which he worked out the drain of wealth from India to Britain.

The peasants of Bardoli taluka in Surat district refused to pay a steep increase in land revenue, Vallabhbhai Patel organised the resistance, the government was forced to appoint an inquiry and roll back most of the increase, and the women of Bardoli gave him the title Sardar.

The correct answer is A, Chittaranjan Das, the Bengal leader who gave up a large legal practice for the non-cooperation movement, defended the Alipore bomb case accused, and founded the Swaraj Party with Motilal Nehru in 1923 to contest the legislatures from within.

The correct answer is B, Valentine Chirol, a British journalist of The Times who used the phrase for Tilak in his book on Indian unrest, holding his writings responsible for turning the people against the government; Tilak sued him for defamation and lost, and the title stuck as a mark…

The correct answer is B, Subhas Chandra Bose, who called Gandhi the Father of the Nation in a radio broadcast in 1944, asking for his blessings for the fight the Indian National Army was carrying on from the east.

He launched the Marathi fortnightly Mooknayak, meaning leader of the voiceless, in January 1920 with help from Shahu Maharaj of Kolhapur, and used it to argue the case of the depressed classes; Bahishkrit Bharat, Janata and Prabuddha Bharat followed.

The Saffir-Simpson hurricane wind scale puts a storm of the Atlantic and the eastern Pacific in one of five categories by its sustained wind, from Category 1, which begins at about 119 km/h, to Category 5 at 252 km/h and above, and a storm of Category 3 or higher is…

The Bay of Bengal gets about four cyclones for every one that forms in the Arabian Sea.

The eye is ten to fifty kilometres across, the air inside it sinks rather than rises, the wind is light and the sky can even be clear, while the atmospheric pressure there is the lowest in the whole system.

A cyclone is a low pressure system, so air flows inwards towards the centre, and the Coriolis force deflects moving air to the left in the Southern Hemisphere, which turns that inflow into a clockwise spiral.

The India Meteorological Department attaches a colour to the severity of the expected weather so that an administration can act without reading the whole bulletin.

The warning comes in four stages, each tied to a number of hours before the adverse weather is expected on the coast.

The names themselves are contributed by the thirteen member countries of the panel, but the centre at New Delhi, which the India Meteorological Department runs, takes the next name from the list, announces it when a deep depression strengthens into a cyclonic storm, and issues advisories to all the member…