Static GK in railway exams starts with one shared block: Class 10 science. Every RRB exam on GK24 tests it. Group D has 25 questions on Physics, Chemistry and Life Sciences of 10th CBSE level. JE has 30 in CBT-1 and another 15 on Physics and Chemistry in CBT-2. ALP tests General Science in CBT-1 and Basic Science and Engineering in CBT-2, and NTPC lists general science up to 10th inside General Awareness. Beyond science, the lists differ. NTPC names history and the freedom struggle, geography, polity, the economy, art and culture, environment, computers, abbreviations, transport systems in India, world organisations and government bodies. JE names geography, history and culture, polity, the economy and environmental issues, and adds computers and pollution control in CBT-2. This page holds GK24's topic-wise GK notes for railway exams in English and Hindi: General Science, History, Geography, Polity, Economy, Art and Culture, Environment, Computers and static GK, including Indian Railways. Each note is short facts and tables that can be revised in one sitting. Begin with the science notes, since they serve every railway exam, then add the static topics your exam lists, and test each note with its quiz.
How much cargo moved on India's inland waterways in 2025-26?
Cargo movement on inland waterways stood at 29 million metric tonnes in 2014-15 and climbed to 218 MMT in 2025-26, which works out to a compound annual growth rate of 20.13 per cent.
Read the full explanation →India's first riverine lighthouses are being set up on which river?
Four riverine lighthouses, the first of their kind on an inland waterway in India, are being built at Pandu, Bogibeel, Silghat and Biswanath Ghat under a ₹74 crore project announced in March 2026.
Read the full explanation →How many National Waterways does India have at present?
India has declared 111 National Waterways to promote shipping and navigation, and their combined length comes to 20,187 km spread over 23 States and 4 Union Territories.
Read the full explanation →Which one of the following is NOT true for bleaching powder?
Bleaching powder is an oxidising agent, not a reducing agent, so this statement is the false one. Bleaching powder, calcium oxychloride (CaOCl₂), is made by passing chlorine gas over dry slaked lime, Ca(OH)₂.
Read the full explanation →A ball is thrown vertically upward with a speed of 40 m/s. The time taken by the ball to reach the maximum height would be approximately
The ball keeps slowing down by about 9.8 m/s every second until its speed becomes zero at the top, which takes 40 ÷ 9.8 ≈ 4 seconds.
Read the full explanation →Which of the following compounds undergoes/undergo thermal decomposition?
On heating, silver oxide breaks down into silver metal and oxygen, while zinc oxide and magnesium oxide stay unchanged. The reaction is 2Ag₂O → 4Ag + O₂.
Read the full explanation →One advantage of sexual reproduction over asexual reproduction is that it helps species to survive over long evolutionary time. This is because sexual reproduction produces :
Sexual reproduction mixes the genes of two parents, so the young differ from each other and from their parents, and variation helps a species survive changing conditions.
Read the full explanation →Which one of the following statements about the Bhakti movement is NOT correct?
The Bhakti movement did not avoid diversity; it embraced many regional languages, sects and social groups, so this statement is the incorrect one.
Read the full explanation →Who among the following was the last Governor-General of India before the office was permanently abolished?
He held the office from June 1948 until 26 January 1950, when India became a republic and the post was replaced by that of the President.
Read the full explanation →Why a fielder in the ground gradually pulls his hands backward while catching a fast moving cricket ball ?
Pulling the hands back stretches the time in which the ball stops, so its deceleration and the force on the hands become smaller.
Read the full explanation →With respect to electromagnetic waves, the human eye is sensitive to
Vision is caused by the electric field of light acting on the light-sensitive molecules of the retina. Light is an electromagnetic wave in which electric and magnetic fields oscillate at right angles to each other and to the direction of travel.
Read the full explanation →Which one of the following elements is least reactive with water ?
Among the alkali metals, reactivity with water increases down the group, so lithium, at the top, is the least reactive.
Read the full explanation →Which one of the following is the chemical formula of Washing Soda ?
Washing soda is sodium carbonate decahydrate, sodium carbonate with ten molecules of water of crystallisation.
Read the full explanation →If a free electron moves through a potential difference of 1 kV, then the energy gained by the electron is given by
The energy gained is the charge of the electron multiplied by the potential difference it crosses. Energy W = qV.
Read the full explanation →"The sum of emf's and potential differences around a closed loop equals zero" is a consequence of
The statement is Kirchhoff's voltage (loop) law, and it follows from the fact that energy is neither created nor destroyed.
Read the full explanation →Which of the following are the primary colours of light ?
Red, green and blue are the primary colours of light because mixing them in different proportions produces all other colours.
Read the full explanation →To help deep-sea divers breathe, they carry cylinders of oxygen mixed with
Deep-sea divers breathe a mixture of oxygen and helium because helium does not dissolve much in blood under high pressure.
Read the full explanation →In a plant cell, which one of the following contains their own DNA ?
Besides the nucleus, these are the only organelles of a plant cell that carry their own DNA. Mitochondria and chloroplasts have small circular DNA molecules and their own 70S ribosomes, so they can make some of their own proteins and divide on their own.
Read the full explanation →A body sinks in water when
A body sinks when its weight is greater than the buoyant force of the water it displaces, which happens when it is denser than water.
Read the full explanation →What is the upward force acting on a skydiver of mass 60 kg who is falling at a uniform speed of 2 m/s?
At uniform speed the net force is zero, so the upward force must equal the skydiver's weight. Weight is mass times the acceleration due to gravity: 60 kg × 9.8 m/s² = 588 N, acting downward.
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