Static GK is not a separate section in RRB Group D, but it decides most of the paper's recall marks. General Science is 25 questions of Physics, Chemistry and Life Sciences at 10th standard (CBSE) level as per CEN 09/2025, and the 20 General Awareness questions lean on the standing facts behind the news: the sport, the award, the institution, the state, the river or the scientist an event touches. This page holds GK24's topic-wise GK notes for RRB Group D. The General Science notes go topic by topic through motion and force, work, energy and power, gravitation, heat, light, sound, electricity and magnetism, atomic structure and the periodic table, chemical reactions, acids, bases and salts, metals and non-metals, and carbon compounds, and the Life Sciences notes cover cells, the human body, nutrition, diseases, plants and genetics. The static GK notes cover Indian Railways zones and facts, national symbols, first and largest in India and the world, awards and honours, important days, books and authors, sports GK, art and culture, and the basics of Indian Polity, Geography, History and the Economy. Each note is short facts and tables that can be revised in one sitting. Read a note, then solve its quiz and the previous-year questions on this site to check what stayed.
Mechanical energy is equal to:
The mechanical energy of a body is the sum of the energy of its motion and the energy of its position.
Read the full explanation →While releasing the arrow from a stretched bow, the Potential Energy of the bow is converted into?
A stretched bow stores elastic potential energy, and when the string is released that store becomes the kinetic energy of the flying arrow.
Read the full explanation →A boy raises a box with a weight of 120 N from a height of 2 m. The work done by him is ________.
Work done against gravity is weight multiplied by height, so 120 × 2 = 240 joules.
Read the full explanation →What is the principle on which brakes work?
Brakes work on friction: a lining is pressed against a moving drum or disc, and the rubbing force slows the wheel down.
Read the full explanation →An object with a mass of 22 kg moving with a velocity of 5 m/s possesses kinetic energy of:
Kinetic energy is half m v squared, so half of 22 multiplied by 5 multiplied by 5 gives 275 joules.
Read the full explanation →A body of mass 2 kg is thrown upward with an initial velocity of 20 m/s. After 2 seconds, its kinetic energy will be: (g = 10 m/s²)
The body is thrown up at 20 m/s and gravity takes away 10 m/s of speed every second, so after 2 seconds its speed is zero.
Read the full explanation →Which of the following is a trivalent doping element?
Boron has three electrons in its outermost shell, so it is a trivalent element and is used as a p-type dopant.
Read the full explanation →What is meant by ABS?
ABS stands for anti-lock braking system, a safety device that keeps the wheels from locking during hard braking.
Read the full explanation →How many P-N junction diode(s) is/are required for a full wave rectifier circuit? (Center-Tap)
A centre-tap full wave rectifier needs two p-n junction diodes, one for each half of the input cycle. The secondary winding of the transformer is tapped at its middle, so its two halves give equal voltages of opposite sign.
Read the full explanation →What is the physical state of water at 12°C?
At normal atmospheric pressure water stays liquid between 0 °C and 100 °C, and 12 °C lies inside that range.
Read the full explanation →If a silicon diode is operating in forward bias in a circuit with 12 V supply and 240 Ω resistor, then what will be the voltage drop across the diode?
A silicon diode in forward bias drops about 0.7 volt across itself, whatever the supply voltage is.
Read the full explanation →The essential organs in a flower for reproduction are:
The stamen and the pistil make the male and female gametes, so they are the essential or reproductive organs of a flower.
Read the full explanation →Which of the following metals does NOT react with Oxygen even at a high temperature?
Silver is a noble metal and does not combine with oxygen even when it is heated strongly. Metals react with oxygen according to their place in the reactivity series.
Read the full explanation →A ball is dropped from a height of 10 m. It strikes the ground and rebounds up to a height of 2.5 m. During the collision, the per cent loss in the kinetic energy is:
The ball falls from 10 m but rises back only 2.5 m, so it keeps one quarter of its energy and loses three quarters.
Read the full explanation →Moss and Marchantia comes under which of the following?
Moss, or Funaria, and Marchantia, a liverwort, are bryophytes, the group called the amphibians of the plant kingdom because they live on land but need water for reproduction.
Read the full explanation →Which bridge connects Dibrugarh in Assam to Pasighat in Arunachal Pradesh?
The Bogibeel bridge crosses the Brahmaputra near Dibrugarh in Assam and links the south bank to the north bank on the way to Pasighat in Arunachal Pradesh.
Read the full explanation →Sandstone is an example of:
Sandstone forms when grains of sand carried by rivers, wind or waves settle in layers and are cemented together over long periods, which makes it a sedimentary rock.
Read the full explanation →Lavani is a folk dance form of:
Lavani is the best known folk dance of Maharashtra, performed by women in a nine-yard sari to the beat of the dholki.
Read the full explanation →Which of the following is an outer planet of the solar system?
Saturn lies beyond the asteroid belt, so it is an outer planet. The eight planets are divided by the asteroid belt that runs between Mars and Jupiter.
Read the full explanation →Which of the followings was NOT a Harappan city?
Mehrgarh was a Neolithic farming village, not a city of the Harappan civilisation. It lies on the Kachi plain of Balochistan and goes back to about 7000 BCE, thousands of years before the mature Harappan phase of 2600 to 1900 BCE.
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