NDA GK Questions 2026

All four are recognised processes by which a river wears away its bed and banks. Hydraulic action is the sheer force of moving water that loosens rock and forces air into cracks.

Ibn Battuta, the Moroccan traveller from Tangier, reached India in 1333. Muhammad bin Tughluq, impressed by his learning, made him the qazi (judge) of Delhi, a post he held for several years.

After years of travel, Guru Nanak (1469-1539) settled at Kartarpur on the banks of the Ravi and set up a centre there.

Buddhist texts such as the Anguttara Nikaya list sixteen mahajanapadas in the sixth century BC. Most were monarchies, but a few were ganas or sanghas, states ruled by an assembly of clan chiefs rather than a single king.

Sholas are patches of stunted, evergreen montane forest found in the sheltered valleys and folds of the high hills of the southern Western Ghats, above about 1,500 metres.

M1, called narrow money, is the most liquid measure of money supply in India. It is made up of currency with the public, demand deposits with banks, and other deposits with the Reserve Bank of India.

Mass wasting, or mass movement, is the downslope movement of rock and soil under the direct pull of gravity, without a carrying agent such as running water or wind.

A sphygmomanometer has an inflatable cuff wrapped around the upper arm, a rubber bulb to pump air into it, and a gauge, traditionally a column of mercury.

The Sargasso Sea lies in the North Atlantic Ocean, east of Bermuda, and it is the only sea in the world with no land coast.

When an electric current is passed through brine, a concentrated aqueous solution of sodium chloride, the salt decomposes. Chlorine gas is given off at the anode and hydrogen gas at the cathode, while sodium hydroxide is left in the solution near the cathode.

Those areas have a Mediterranean climate with dry summers and winter rain, and their vegetation is evergreen scrub such as chaparral and maquis, not rain forest.

The National Water Academy is the training wing of the Central Water Commission, which works under the Union Ministry of Jal Shakti.

RNA is usually single-stranded and its sugar, ribose, carries an extra hydroxyl group, which makes the molecule more reactive and easier to break or alter than double-stranded DNA.

Siyar-ul-Mutakherin, meaning 'Review of Modern Times', was written in Persian by Syed Ghulam Husain Khan Tabatabai and completed around 1781.

The question asks which statement is not correct. The Azamgarh Proclamation was issued in August 1857 in the name of the rebels, and is usually linked with Firoz Shah, a prince of the Mughal family.

The Quad, or Quadrilateral Security Dialogue, has four members: India, the United States, Japan and Australia. France is a major Indo-Pacific partner of India with its island territories in the Indian Ocean, but it is not a member of the grouping.

Chisht, today Chisht-e-Sharif, is a small town in the valley of the Hari Rud river in Herat province of Afghanistan, east of the city of Herat.

By Newton's law of gravitation, the acceleration due to gravity at the surface is g = GM/R², where G is the universal gravitational constant, M is the mass of the Earth and R is its radius.

Kunzru, a member of the Servants of India Society, founded the Seva Samiti at Allahabad in 1914 to organise social service: relief during famines, floods and epidemics, help to pilgrims at melas, and the spread of education and sanitation.

Plantation agriculture is the large-scale growing of a single cash crop such as tea, coffee, rubber, sugarcane, cocoa or bananas, mainly for export.