Static GK carries most of the 100 marks of the CDS General Knowledge paper. Of the 120 questions in the CDS (II) 2026 paper, about 20 were on Indian Polity, about 20 on the History of India, about 15 on Geography and the environment, about 10 on the Indian Economy and about 37 on Physics, Chemistry and Biology, which makes CDS the most science-heavy General Knowledge paper among the major recruitment exams. Polity questions test writs, the NHRC, electoral systems, disqualification of legislators, GST and delimitation. History runs from the Upanishads and the Shunga dynasty to Vijayanagara, temple architecture, the Sylhet referendum and the SNDP Yogam. Geography asks about the atmosphere, earthquakes and tsunamis, Ramsar sites, mangroves and World Heritage sites. Science stays at school level but expects reasoning: a lens problem, a magnetic field direction, molarity versus molality, what cooking soda is, how enzymes act. This page holds GK24's topic-wise GK notes for CDS, written as short facts and tables so that a topic can be revised in one sitting. Read a topic, then solve its previous-year questions and quiz on this site to check what stayed with you.
Code Division Multiple Access (CDMA) technology is primarily used in:
CDMA is a channel access method that lets many mobile users share the same radio frequency band at the same time.
Read the full explanation →Consider the following statements with reference to earthquakes:
1. Collapse earthquakes are most common.
2. Tsunamis are waves generated by the tremors and not an earthquake in itself.
3. High magnitude earthquakes i.e. 8+ are quite rare whereas 'tiny' types occur almost every minute.
Which of the statements given above are correct?
Statement 1 is false because tectonic earthquakes, not collapse earthquakes, are the most common type. Earthquakes are grouped by cause: tectonic (sliding of rocks along a fault), volcanic, collapse (the roofs of underground mines or caverns falling in), explosion (from nuclear or chemical blasts) and reservoir-induced.
Read the full explanation →With reference to earthquakes, which of the following statements are correct?
1. Earthquakes largely occur along the converging plate boundaries.
2. Point of origin of earthquake in lithosphere is known as focus/hypocentre.
3. Intensity of earthquake decreases with distance from the epicentre.
4. Epicentre of earthquake always remains over continents only.
Select the correct answer using the code given below.
The first three statements are true, while statement 4 is false because many earthquakes have their epicentre under the sea.
Read the full explanation →'Plum Pudding Model' for an atom was proposed by
Thomson proposed in 1904 that an atom is a sphere of positive charge with electrons embedded in it, like plums in a pudding or seeds in a watermelon.
Read the full explanation →A person is standing on a frictionless horizontal ground. How can he move by a certain distance on this ground?
On a frictionless surface the person can move only by throwing something out in one direction, and a sneeze pushes air forward so the body recoils backward.
Read the full explanation →In which one of the following physiological processes, excess water escapes in the form of droplets from a plant?
Guttation is the loss of water in the form of liquid droplets from the edges and tips of leaves. Guttation happens mostly at night or early in the morning, when the soil is moist and the air is humid, so transpiration is slow.
Read the full explanation →Pakyong Airport is located in
Pakyong Airport, near Gangtok in the Pakyong district of Sikkim, is the first and only airport of the state. The airport was built by the Airports Authority of India and inaugurated by the Prime Minister in September 2018, with commercial flights starting in October 2018.
Read the full explanation →A car undergoes a uniform circular motion. The acceleration of the car is
In uniform circular motion the speed stays the same, but the direction of the velocity keeps changing, so the car is always accelerating and the direction of that acceleration keeps changing too.
Read the full explanation →Who among the following was one of the founders of the Indian Society of Oriental Art?
He founded the Indian Society of Oriental Art in Calcutta in 1907 together with his brother Gaganendranath Tagore and E.B.
Read the full explanation →National Disaster Management Authority is headed by
Under the Disaster Management Act, 2005, the Prime Minister is the ex officio chairperson of the National Disaster Management Authority (NDMA).
Read the full explanation →What were Manigramam and Nanadesi in early medieval India?
Manigramam and Nanadesi were powerful trade guilds of south India in the early medieval period. In the age of the Pallavas, Cholas and later Chalukyas, merchants organised themselves into guilds that ran long-distance and overseas trade.
Read the full explanation →The Chevrons is the name of the cricket team of which one of the following countries?
'The Chevrons' is the nickname of the Zimbabwe national cricket team, taken from the chevron pattern linked with the stone walls of Great Zimbabwe.
Read the full explanation →In which one of the following cases do both physical and chemical changes take place?
When a candle burns, the wax first melts and turns to vapour, which is a physical change, and the vapour then burns in air, which is a chemical change.
Read the full explanation →Consider the following statements:
1. The Flag Code of India superseded the 'Flag Code-India'.
2. The state emblem of India is an adaptation of the Lion Capital of Ashoka at Sarnath.
Which of the statements given above is/are correct?
The Flag Code of India, 2002 replaced the older 'Flag Code-India', and the State Emblem is taken from Ashoka's Lion Capital at Sarnath.
Read the full explanation →Which one among the following is used in a simple microscope?
A simple microscope is just a convex (converging) lens of short focal length, held close to the eye, which gives an enlarged image of a small object.
Read the full explanation →Chronologically arrange the formation of the following political associations, beginning from the earliest:
1. Poona Sarvajanik Sabha
2. Indian Association
3. Madras Mahajan Sabha
4. Bombay Presidency Association
Select the answer using the code given below:
The four bodies were founded in 1870, 1876, 1884 and 1885 respectively, which is the order of the question. The Poona Sarvajanik Sabha was set up in 1870, and Justice M.G.
Read the full explanation →In MP3 compression scheme, 60 minutes of music can be stored in about:
At the common MP3 bit rate of 128 kilobits per second, one hour of music takes roughly 55 to 60 megabytes, so about 50 MB is the closest figure.
Read the full explanation →Which of the following statements related to the stages of evolution of the present atmosphere are correct?
1. The first stage is marked by the loss of primordial atmosphere.
2. In the second stage, the hot interior of the earth contributed to the evolution of the atmosphere.
3. Finally, the composition of the atmosphere was modified by the living world through the process of photosynthesis.
Select the answer using the code given below:
All three statements describe, in the right order, the three stages through which the present atmosphere of the Earth evolved.
Read the full explanation →To which hospital was the patient taken after the Indian Air Force flight landed?
The Ministry of Defence said the patient was transferred there for further treatment after the aircraft landed at Palam.
Read the full explanation →The critically ill patient was airlifted from Leh and landed at which place?
The Indian Air Force aircraft flew the patient from Leh and landed at Palam, after which the patient was moved to the All India Institute of Medical Sciences for further treatment.
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