State Exams GK Questions 2026

In a scramjet, short for supersonic combustion ramjet, the air taken in from the atmosphere stays supersonic while the fuel is burnt in it, which is what allows sustained flight at hypersonic speed.

CVRDE, near Chennai, is the DRDO laboratory for armoured fighting vehicles, and the Arjun main battle tank was designed there and is produced at the Heavy Vehicles Factory in the same town.

GTRE is the DRDO laboratory for aero engines, and the Kaveri turbofan was taken up there for the Tejas light combat aircraft.

Trishul was designed as a quick reaction weapon to protect warships and forward army positions from low flying aircraft and from sea skimming missiles, so it needed very fast response over a short distance rather than long reach.

In Mission Shakti, on 27 March 2019, an interceptor developed for ballistic missile defence was used to destroy one of India's own satellites in low earth orbit, showing that the country could strike a target in space.

Astra is a beyond visual range air-to-air missile, which means it is fired from a fighter aircraft at an enemy aircraft the pilot cannot see with the eye, using radar to find and follow the target.

Nirbhay flies below the speed of sound but for a much greater distance than BrahMos, staying low to avoid radar, and it can change course in flight and loiter over an area before striking.

DRDO was formed in that year by bringing together the Technical Development Establishment of the Indian Army, the Directorate of Technical Development and Production and the Defence Science Organisation, so that defence research would be done under one roof.

BrahMos is built by BrahMos Aerospace, a joint venture formed in 1998 between DRDO and the Russian firm NPO Mashinostroyeniya, and the name joins a great river of each country.

Nag is a third generation anti-tank guided missile of the fire and forget kind, which means that once the seeker has locked on to the target the operator need not keep guiding it, and the crew can move away at once.

The Integrated Guided Missile Development Programme was approved in 1983 and Kalam, then at the Defence Research and Development Laboratory, was made its head.

Shaurya is the land based version of the submarine launched K-15 Sagarika, and it is stored and fired from a sealed canister, which lets it be moved by road and launched at short notice.

Shanti Van, the forest of peace, lies north of Raj Ghat on the bank of the Yamuna and marks the place where the first Prime Minister of India was cremated in 1964.

Until then cases from Delhi went to the Punjab High Court, and a separate High Court for Delhi was set up in 1966 by an Act of Parliament, with jurisdiction that then extended over Delhi and for some years over other areas as well.

The founder of the Tughlaq dynasty built Tughlaqabad in the early fourteenth century as the third of Delhi's historic cities, with massive sloping rubble walls on a rocky outcrop in the south of the present city.

The Asola Bhatti Wildlife Sanctuary lies on the southern Delhi Ridge, the last northern spur of the Aravalli range, and covers old mining land that has been restored to thorn forest.

The ruler of Amber and founder of Jaipur built the Delhi Jantar Mantar in 1724, the first of the five observatories he raised, the others being at Jaipur, Ujjain, Mathura and Varanasi.

He began the tower, of which only the first storey was raised in his lifetime, and it stands beside the Quwwat-ul-Islam mosque he built in the Qutub complex.

Shah Jahan built the fort between 1639 and 1648 as the citadel of his new capital Shahjahanabad, and it was inscribed on the World Heritage List in 2007.

After the 1911 announcement the two British architects planned the new capital, Lutyens designing the Viceroy's House, now Rashtrapati Bhavan, and laying out the central vista, while Baker designed the two Secretariat blocks on Raisina Hill and the circular Council House that became Parliament House.