RRB Group D GK Questions 2026

The correct answer is B, Tamil Nadu, which passed a state Right to Information Act in 1997, the first such law in the country and eight years ahead of the central Right to Information Act of 2005.

The idea came from the First Administrative Reforms Commission, which recommended a Lokpal at the Centre and a Lokayukta in the states to look into complaints of corruption and maladministration against public functionaries.

Jawaharlal Nehru inaugurated the Panchayati Raj system at Nagaur on 2 October 1959, putting into practice the three-tier design recommended by the Balwant Rai Mehta Committee of 1957: the gram panchayat at the village level, the panchayat samiti at the block level and the zila parishad at the district level.

It was created as Andhra State on 1 October 1953 by separating the Telugu-speaking districts of the old Madras State.

This is a glucose analogue in which fluorine-18 replaces a hydroxyl group.

It regulates the use of pre-natal diagnostic techniques, requires every ultrasound clinic to be registered and to keep records, and prohibits sex selection before or after conception as well as the communication of the sex of the foetus to anyone.

Gadolinium is a rare earth element whose ion is strongly paramagnetic, so it shortens the relaxation time of nearby hydrogen nuclei and brightens the tissue it reaches.

Hounsfield, an engineer at EMI in Britain, built the first clinical CT scanner, and Cormack, a physicist, had independently worked out the mathematics of reconstructing a cross-section from measurements taken along many directions.

When sound is reflected from a moving target, the frequency of the echo is shifted: higher when the blood is moving towards the probe and lower when it is moving away.

Certain crystals develop a voltage across their faces when they are mechanically squeezed, and conversely change shape when a voltage is applied.

The tesla is the SI unit of magnetic flux density, and clinical MRI scanners commonly work at one and a half or three tesla, produced by a superconducting coil kept cold by liquid helium.

A single proton, the nucleus of ordinary hydrogen, has a spin and therefore a magnetic moment, and hydrogen is by far the most abundant such nucleus in the body because the body is largely water and fat.

The cutoff or minimum wavelength of the continuous X-ray spectrum arises when an electron gives up its entire kinetic energy in a single collision with the target.

The Hounsfield unit, named after Godfrey Hounsfield, expresses how strongly a small volume of tissue attenuates X-rays, on a scale fixed by definition at zero for water and minus one thousand for air.

MRI works by placing the hydrogen nuclei of the body in a strong static magnetic field and disturbing them with radiofrequency pulses, which lie in the harmless low-energy part of the electromagnetic spectrum.

Working with a discharge tube at the University of Wurzburg in November 1895, Roentgen noticed that a screen coated with a fluorescent salt glowed even when the tube was covered, and he traced the effect to an unknown penetrating radiation that he called X-radiation.

Three islands were renamed in 2018: Ross Island became Netaji Subhas Chandra Bose Dweep, Neil Island became Shaheed Dweep and Havelock Island became Swaraj Dweep, the words Shaheed and Swaraj being the names Netaji himself had used for the islands during the Second World War.

The city at the meeting of the Ganga and the Yamuna, where the Kumbh is held, was renamed Prayagraj in 2018, and in the same year the Faizabad district of the state was renamed Ayodhya and Mughalsarai Junction became Pandit Deen Dayal Upadhyaya Junction.

Parliament passed the law that changed the English spelling of the state's name to Odisha, together with a constitutional amendment that changed the name of its language from Oriya to Odia, so that both matched the local pronunciation.

Saigon was the capital of South Vietnam, and after the north and the south were united the city was renamed in 1976 after Ho Chi Minh, the leader of the Vietnamese independence movement.