Defence GK Questions 2026

India stretches across about 30 degrees of longitude, and every degree makes a difference of four minutes in local time.

Herbert Hope Risley, Home Secretary to the Government of India, wrote these words in an official note in December 1904.

Sulphur dioxide dissolves in rainwater to form sulphuric acid, a main cause of acid rain. Burning coal and oil in power stations, smelters and vehicles releases sulphur dioxide and oxides of nitrogen into the air.

The Congress did support the Khilafat movement, so this statement does not describe it. After the First World War, Indian Muslims feared that the Allies would strip the Ottoman Sultan, the Khalifa, of his power and of control over the holy places of Islam.

The first Administrative Reforms Commission recommended a Lokpal and Lokayuktas in its 1966 report. The first ARC, set up in 1966 under Morarji Desai and later chaired by K. Hanumanthaiya, submitted an interim report on the Problems of Redressal of Citizens' Grievances.

With the leaders in jail, people in several regions set up their own governments. The Quit India resolution was passed at the Bombay session of the Congress on 8 August 1942, with Gandhi's call of Do or Die.

Surya Sen was a schoolteacher in Chittagong, not a lawyer in Dhaka, so statement B is not correct. Surya Sen, called Masterda by his followers, taught mathematics at a school in Chittagong.

In it Ashoka says plainly that he has been a lay follower (upasaka) of the Buddha. Minor Rock Edict 1 is found at places such as Maski, Brahmagiri, Rupnath, Sasaram and Gujarra.

The Philosophy of the Bomb was drafted by Bhagwati Charan Vohra of the Hindustan Socialist Republican Association, and Yashpal worked on it with him.

Nagara temples belong to north India, but their shikhara is curvilinear, not pyramidal. The Nagara style spread over the land between the Himalayas and the Vindhyas, from Gujarat and Rajasthan to Odisha.

The so-called lead of a pencil is a mix of graphite and clay; it contains no lead metal. Graphite is a crystalline form, or allotrope, of carbon.

A liquid has no shape of its own, so it must be measured inside a vessel that expands at the same time.

G has the same value everywhere in the universe, for any two masses. The relation is Newton's law of universal gravitation: every two bodies attract each other with a force proportional to the product of their masses and inversely proportional to the square of the distance between them.

The Kelvin and Fahrenheit scales read the same at about 574.25, which is about 301 degrees Celsius. The scales are linked by K = C + 273 and F = (9/5)C + 32.

The lens of the human eye is a converging (convex) lens, not a diverging one, so statement A is not correct.

The rod becomes negative because it gains electrons from the wool. When two materials are rubbed together, only electrons move, because they are the loosely held outer particles of atoms.

This is the Clausius statement of the second law. Rudolf Clausius stated that heat cannot by itself pass from a colder body to a hotter one; work must be done to make it do so.

Jharkhand has railway divisions such as Ranchi and Dhanbad, but no zonal headquarters. Indian Railways is organised into zones, each headed by a General Manager, and every zone is split into divisions.

Bats send out ultrasonic squeaks and listen for the echoes to locate obstacles and prey. This method is called echolocation.

The Dhanbad-Jamshedpur region is known for coal, iron and steel, not cotton textiles. Cotton mills grew where raw cotton, a humid climate, capital, cheap power and markets came together.