Static general knowledge makes up about 90% of Part B of the NDA General Ability Test, about 360 of its 400 marks. The NDA & NA (II) 2026 notice divides it into five sections: Physics (about 25%), Chemistry (about 15%), General Science (about 10%), History, Freedom Movement etc. (about 20%) and Geography (about 20%). Half of Part B is science. Physics covers matter, motion, gravitation, heat, sound, light, magnetism, electricity and the working of everyday devices such as the siphon, pressure cooker, periscope and safety fuse. Chemistry covers changes of matter, elements and compounds, common gases, acids, bases and salts, carbon, fertilizers and the materials used to make soap, glass, cement and gunpowder. General Science covers cells, the human body, diseases, diet, the solar system and eminent scientists. Section D spans Indian history and culture, the freedom movement, the Constitution, Five Year Plans, Panchayati Raj and world history from the Renaissance to the Russian Revolution. Geography covers the Earth, rocks, oceans, the atmosphere and climate, and India's resources, industries, ports and trade. This page holds GK24's topic-wise GK notes for NDA, in English and Hindi, written as short facts and tables. Read a topic, then solve its quiz and previous-year questions on this site.
Bacterial DNA is referred to as naked because it is not associated with :
In bacteria the DNA is not wrapped around histone proteins as it is in the chromosomes of eukaryotes, so it is called naked DNA.
Read the full explanation →Given below are the four cases in which certain heat transfer is taking place : 1. Ice is melting in a glass full of water 2. Water is boiling in an open container 3. A metal rod is heated in a furnace 4. A cup of coffee is allowed to cool on a table In which of the above cases, the Newton's Law of Cooling is applicable?
Newton's law of cooling describes a hot body losing heat to cooler surroundings, which is exactly what a cup of coffee on a table does.
Read the full explanation →Which of the following pairs is/are correctly matched ? 1. Malaria : Mycobacterium 2. TB : Plasmodium Select the answer using the code given below:
The two pathogens have been swapped: malaria is caused by Plasmodium and TB by Mycobacterium, so both pairs are wrong.
Read the full explanation →Consider the following statements with reference to sea waves : 1. The height of waves is determined by wind speed, wind duration, and fetch 2. The energy of a wave is proportional to the square of its height 3. Waves retain most of their energy as they travel across the deep ocean Which of the statements given above is/are correct ?
All three statements describe how ocean waves form and travel. Statement 1 is correct: wind-driven waves grow with the wind's speed, the length of time it blows and the fetch, the stretch of open water over which it blows.
Read the full explanation →Which one of the following is not a pass of Arunachal Pradesh?
Muling La lies in the Uttarkashi district of Uttarakhand, on the route from the Gangotri region into Tibet, not in Arunachal Pradesh.
Read the full explanation →In the southern hemisphere, trade winds blow from:
In the southern hemisphere the trade winds are the south-east trades, blowing from the subtropical high towards the equator and turned to their left by the Coriolis force.
Read the full explanation →The amount of heat required to change a liquid to gaseous state without any change in temperature is known as
It is the heat a liquid absorbs to turn into vapour at its boiling point, while its temperature stays the same.
Read the full explanation →Which one of the following rivers is NOT a tributary of river Cauvery ?
The Indravati is a tributary of the Godavari, flowing from Odisha through the Bastar region of Chhattisgarh; it has nothing to do with the Cauvery basin.
Read the full explanation →Who among the following was the first Indian to qualify for the Indian Civil Service ?
He passed the Indian Civil Service examination in London in 1863 and joined the service in 1864, the first Indian to do so.
Read the full explanation →Which one of the following is a major environmental issue in eastern Canada ?
Sulphur and nitrogen oxides from industries in the Great Lakes region and the US Midwest are carried by westerly winds and fall as acid rain and snow over eastern Canada.
Read the full explanation →Advantage(s) of tectonic activity in Iceland include(s) : 1. Source of natural geothermal energy 2. Creation of new land 3. Attraction of tourists Select the correct answer using the code given below:
Iceland's volcanic and tectonic activity gives it cheap geothermal energy, adds new land through eruptions and draws large numbers of tourists.
Read the full explanation →Fundamental laws of physics require
In every isolated system these three quantities stay constant, and no known process has ever been found to break these laws.
Read the full explanation →Which of the following is/are the right/rights mentioned in the 'American Declaration of Independence'? 1. Life 2. Liberty 3. Pursuit of Happiness 4. Fraternity Select the correct answer using the code given below.
The Declaration says that all men are endowed with certain unalienable rights, among which are Life, Liberty and the pursuit of Happiness.
Read the full explanation →Yashovarman was ruler of which one of the following kingdoms?
Yashovarman ruled Kannauj in the first half of the eighth century, between the age of Harsha and the rise of the Gurjara-Pratiharas.
Read the full explanation →Who among the following is known as the architect of Indian planning ?
Mahalanobis. His model shaped the Second Five Year Plan (1956-61), which set India's path of heavy industrialisation, so he is called the architect of Indian planning.
Read the full explanation →Leaves of most plants appear green because the chlorophyll present in it :
The green light that chlorophyll does not use is reflected back to our eyes, so leaves look green. White sunlight contains all the colours of the visible spectrum.
Read the full explanation →The vector of malaria parasites is
Only the female Anopheles bites humans for blood, and in doing so it passes the malaria parasite, Plasmodium, into the bloodstream.
Read the full explanation →Which one among the following volcanic island chains is NOT associated with mid-oceanic ridge?
Hawaii was built by a hotspot in the middle of the Pacific Plate, far from any plate boundary, not by a mid-oceanic ridge.
Read the full explanation →Which one of the following winds is responsible for wildfires in Southern California?
These hot, very dry winds blow from the inland deserts towards the coast of Southern California and spread its autumn wildfires.
Read the full explanation →The Earth's equatorial region bulges outward, but the Earth flattens slightly towards the polar regions due to the :
The spin of the Earth throws the equatorial belt outward, so the planet bulges at the equator and is flattened at the poles.
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