Defence GK Questions 2026

The energy gained is the charge of the electron multiplied by the potential difference it crosses. Energy W = qV.

The National Water Academy functions at Khadakwasla in Pune, Maharashtra, under the Central Water Commission. The academy began in 1988 as the Central Training Unit of the Central Water Commission and was renamed the National Water Academy in 1997.

The statement is Kirchhoff's voltage (loop) law, and it follows from the fact that energy is neither created nor destroyed.

Red, green and blue are the primary colours of light because mixing them in different proportions produces all other colours.

The Act of 1861 enlarged the Governor General's Executive Council for law-making by adding extra members, and it was the Governor General who nominated them.

Deep-sea divers breathe a mixture of oxygen and helium because helium does not dissolve much in blood under high pressure.

Besides the nucleus, these are the only organelles of a plant cell that carry their own DNA. Mitochondria and chloroplasts have small circular DNA molecules and their own 70S ribosomes, so they can make some of their own proteins and divide on their own.

Taxes were a source of revenue for running the state, not a means of claiming exalted status. Ancient Indian kings used several devices to raise their standing.

Democracy rests on the consent of the people and their equal political rights, while accountability runs from the rulers to the ruled, not the other way round.

A body sinks when its weight is greater than the buoyant force of the water it displaces, which happens when it is denser than water.

At uniform speed the net force is zero, so the upward force must equal the skydiver's weight. Weight is mass times the acceleration due to gravity: 60 kg × 9.8 m/s² = 588 N, acting downward.

With no external force on the system, its centre of mass cannot start moving. The throw is an internal force: X pushes the tool forward and the tool pushes X backward with an equal and opposite force (Newton's third law).

The three word motto, faster, higher, stronger, was coined by Father Henri Didon and taken up by Pierre de Coubertin for the modern games; in 2021 the International Olympic Committee added the fourth word so that the motto now reads faster, higher, stronger, together, to stress solidarity along with individual…

The ILO was set up in 1919 under the Treaty of Versailles, became the first specialised agency of the United Nations in 1946, has its headquarters at Geneva and works on a tripartite basis with governments, employers and workers.

The phrase, for the good of the many and the happiness of the many, comes from Buddhist usage and fits a broadcaster that reaches almost the whole population in many languages; All India Radio took its present name in 1936 and Akashvani was adopted in 1957.

Its motto, meaning the true, the auspicious and the beautiful, is the line that accompanied its familiar logo for decades.

The DRDO was formed in 1958 and works under the Ministry of Defence, developing missiles, radars, armoured vehicles, torpedoes and other defence systems, and its crest carries this Sanskrit line about science being the root of strength.

The service was raised in 1978 and works under the Ministry of Defence, guarding the maritime zones, enforcing fisheries and anti smuggling law and running search and rescue at sea, so the plain promise of Vayam Rakshamah, we protect, is apt.

The line comes from the Mahabharata and appears on the emblem of the Court, which shows the wheel of dharma with the lions of the Ashoka capital.

Sam No Varunah is a Sanskrit prayer from the Taittiriya Upanishad that Varuna, the lord of the waters, be auspicious unto us, which is the natural choice for a sea service, and it is written on the naval crest under the anchor.