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RRB Group D 2025-26 12 August 2026 Shift 1 GK Questions – with answers & solutions

All 43 GK / GS questions asked in RRB Group D 2025-26 on 12 August 2026 Shift 1, with correct answers and short solutions, subject-wise: Current Affairs, Static GK, Economics, Physics, Biology, Chemistry.

📚 43 questions🗓️ 12 August 2026⏰ Shift 1
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Subjects: Current Affairs (17) · Static GK (2) · Economics (1) · Physics (10) · Biology (7) · Chemistry (6)

Current Affairs (17)

National Affairs and Government Initiatives · National events and launches

Q1. Who organized the Prakriti 2026 conference under the patronage of the Ministry of Power and the Ministry of Environment, Forest and Climate Change?

  1. (a) Indian Meteorological Department
  2. (b) Bureau of Energy Efficiency
  3. (c) Central Pollution Control Board
  4. (d) NITI Aayog
Answer & solution

Answer: (b) Bureau of Energy Efficiency

Answer: Option 2 – Bureau of Energy Efficiency.
• TheBureau of Energy Efficiency (BEE)organised the Prakriti 2026 conference under the Ministries of Power and Environment.
Defence and Security - Current · Defence acquisitions and indigenous systems

Q2. What is the name of the sixth Nilgiri-class stealth frigate delivered to the Indian Navy by Mazagon Dock Shipbuilders Limited on April 30, 2026?

  1. (a) Vindhyagiri
  2. (b) Mahendragiri
  3. (c) Nilgiri
  4. (d) Taragiri
Answer & solution

Answer: (b) Mahendragiri

Answer: Option 2 – Mahendragiri.
•INS Mahendragiri, the sixth Nilgiri-class stealth frigate, was delivered by MDL on 30 April 2026.
International Affairs and Summits · Global events and elections

Q3. Following a deadly mass shooting in Australia in December 2025, Prime Minister Anthony Albanese announced a major national gun buyback scheme. At which prominent Australian location did this occur?

  1. (a) Lindt Cafe, Sydney
  2. (b) Bondi Beach, Sydney
  3. (c) Port Arthur, Tasmania
  4. (d) Wieambilla, Queensland
Answer & solution

Answer: (b) Bondi Beach, Sydney

Answer: Option 2 – Bondi Beach, Sydney.
• The December 2025 mass shooting that prompted Australia's gun-buyback scheme occurred atBondi Beach, Sydney.
Environment and Climate - Current · New protected areas and Ramsar sites

Q4. Which bird sanctuary in Uttar Pradesh was added to the Ramsar List in 2026 as a Wetland of International Importance?

  1. (a) Patna Bird Sanctuary
  2. (b) Okhla Bird Sanctuary
  3. (c) Sur Sarovar Bird Sanctuary
  4. (d) Nawabganj Bird Sanctuary
Answer & solution

Answer: (a) Patna Bird Sanctuary

Answer: Option 1 – Patna Bird Sanctuary.
•Patna Bird Sanctuary (UP)was added to the Ramsar List in 2026.
Awards and Honours - Current · National awards - current

Q5. In January 2026, which eminent individual from Kerala was honored with the Padma Vibhushan for their significant contributions in Public Affairs, specifically in judicial rectitude and constitutional governance?

  1. (a) P. Sathasivam
  2. (b) K. T. Thomas
  3. (c) Jasti Chelameswar
  4. (d) Kurian Joseph
Answer & solution

Answer: (b) K. T. Thomas

Answer: Option 2 – K. T. Thomas.
• Former Supreme Court judgeK. T. Thomas(Kerala) received the Padma Vibhushan (Jan 2026) in Public Affairs.
Books, Obituaries and Days - Current · Days and themes - current year

Q6. Which dates were observed as Financial Literacy Week 2026 by RBI, focusing on safe banking practices?

  1. (a) February 15 to 19, 2026
  2. (b) February 1 to 5, 2026
  3. (c) February 20 to 24, 2026
  4. (d) February 9 to 13, 2026
Answer & solution

Answer: (d) February 9 to 13, 2026

Answer: Option 4 – February 9 to 13, 2026.
• RBI observed Financial Literacy Week 2026 from9–13 February 2026.
Defence and Security - Current · Defence acquisitions and indigenous systems

Q7. On May 7, 2026, Defence Research and Development Organisation and the Indian Air Force successfully conducted the maiden flight-trial of _____.

  1. (a) Tactical Airborne Reconnaissance Aircraft
  2. (b) Target Acquisition and Radar Assistance
  3. (c) Tactical Advanced Range Augmentation
  4. (d) Tactical Aviation Response Armament
Answer & solution

Answer: (c) Tactical Advanced Range Augmentation

Answer: Option 3 – Tactical Advanced Range Augmentation.
• DRDO and the IAF conducted the maiden flight-trial of this system on 7 May 2026 (per the question's framing).
Sports - Current · Records and achievements

Q8. At the LA Track Fest in May 2026, Habtom Samuel achieved a historic feat in collegiate athletics. What record did he break?

  1. (a) NCAA 1500m record
  2. (b) NCAA 110m hurdles record
  3. (c) NCAA 5000m record
  4. (d) NCAA Long Jump record
Answer & solution

Answer: (c) NCAA 5000m record

Answer: Option 3 – NCAA 5000m record.
• At the LA Track Fest (May 2026), Habtom Samuel broke theNCAA 5000 m record.
Defence and Security - Current · Military exercises - current

Q9. Which command hosted the high-level Joint Operations Conclave under the All Domain Joint Operations (ADJO) Exercise 2026 framework in February 2026?

  1. (a) Central Air Command
  2. (b) Western Air Command
  3. (c) Southern Command
  4. (d) Eastern Naval Command
Answer & solution

Answer: (b) Western Air Command

Answer: Option 2 – Western Air Command.
•Western Air Commandhosted the Joint Operations Conclave under ADJO Exercise 2026 (Feb 2026).
State News · State elections and results

Q10. Which of the following leaders took oath as the Chief Minister of West Bengal in India in May 2026?

  1. (a) Mamata Banerjee
  2. (b) Suvendu Adhikari
  3. (c) Dilip Ghosh
  4. (d) Sukanta Majumdar
Answer & solution

Answer: (b) Suvendu Adhikari

Answer: Option 2 – Suvendu Adhikari.
•Suvendu Adhikaritook oath as Chief Minister of West Bengal (May 2026).
National Affairs and Government Initiatives · National events and launches

Q11. The Special Commonwealth Games Edition of the 75th edition of Fit India Sundays on Cycle, led by Minister of State for Youth Affairs & Sports in May 2026, was organised at which institution campus?

  1. (a) Indian Institute of Technology Guwahati
  2. (b) National Institute of Technology Silchar
  3. (c) Indian Institute of Technology Delhi
  4. (d) Indian Institute of Science Bengaluru
Answer & solution

Answer: (a) Indian Institute of Technology Guwahati

Answer: Option 1 – IIT Guwahati.
• The 75th 'Fit India Sundays on Cycle' (Commonwealth Games special edition) was held atIIT Guwahati(May 2026).
National Affairs and Government Initiatives · National events and launches

Q12. Which dashboard was launched by Union Home Minister Amit Shah during the inauguration of the new Cybercrime Branch of the Central Bureau of Investigation (CBI) in New Delhi in February 2026?

  1. (a) Unified Women Safety Monitoring Portal
  2. (b) State Cyber Crime Coordination Centre (S4C) dashboard
  3. (c) Digital Governance Monitoring Dashboard
  4. (d) Central Financial Fraud Analysis Dashboard
Answer & solution

Answer: (b) State Cyber Crime Coordination Centre (S4C) dashboard

Answer: Option 2 – State Cyber Crime Coordination Centre (S4C) dashboard.
• Amit Shah launched theS4C dashboardat the CBI's new Cybercrime Branch (Feb 2026).
Science, Technology and Space - Current · Space missions - current

Q13. In 2026, which space agency carried four astronauts around the far side of the Moon, testing systems and workflows for future missions?

  1. (a) ISRO (India)
  2. (b) ESA (Europe)
  3. (c) NASA (USA)
  4. (d) CNSA (China)
Answer & solution

Answer: (c) NASA (USA)

Answer: Option 3 – NASA (USA).
• In 2026NASAcarried four astronauts around the far side of the Moon (Artemis-II style mission).
Books, Obituaries and Days - Current · Books released

Q14. Which of the following organizations published the book 'Janjati Gaurav' in March 2026 to document the history and contributions of India's tribal communities?

  1. (a) Indira Gandhi National Centre for Arts
  2. (b) Ministry of Tribal Affairs
  3. (c) National Book Trust
  4. (d) Sahitya Akademi
Answer & solution

Answer: (a) Indira Gandhi National Centre for Arts

Answer: Option 1 – Indira Gandhi National Centre for the Arts.
•IGNCApublished 'Janjati Gaurav' (March 2026) documenting tribal history and contributions.
Awards and Honours - Current · Sports and film awards - current

Q15. In 2026, which tennis star was named Laureus World Sportsman of the Year for his performances, which included winning the French and US Opens?

  1. (a) Novak Djokovic
  2. (b) Alexander Zverev
  3. (c) Carlos Alcaraz
  4. (d) Jannik Sinner
Answer & solution

Answer: (c) Carlos Alcaraz

Answer: Option 3 – Carlos Alcaraz.
•Carlos Alcarazwas named Laureus World Sportsman of the Year 2026.
National Affairs and Government Initiatives · National events and launches

Q16. In April 2026, the Ministry of Social Justice reported disbursing nearly Rs. 8,000 crore to over 75 lakh beneficiaries. Which community did this specific budget allocation target?

  1. (a) The Particularly Vulnerable Tribal Groups (PVTGs)
  2. (b) The six notified minority communities (Christians, Muslims, etc.)
  3. (c) The Parsi community specifically
  4. (d) The Scheduled Caste (SC) beneficiaries
Answer & solution

Answer: (d) The Scheduled Caste (SC) beneficiaries

Answer: Option 4 – The Scheduled Caste (SC) beneficiaries.
• The ~₹8,000 crore disbursed (April 2026) to over 75 lakh beneficiaries targetedScheduled Castebeneficiaries.
National Affairs and Government Initiatives · Policies, laws and bills

Q17. In May 2026, the government revised financial grants for National Sports Federations (NSFs). Under these new guidelines, what is the revised grant for hosting international tournaments?

  1. (a) ₹90 Lakh
  2. (b) ₹5 Crore
  3. (c) ₹1 Crore
  4. (d) ₹2 Crore
Answer & solution

Answer: (d) ₹2 Crore

Answer: Option 4 – ₹2 Crore.
• The revised NSF grant for hosting international tournaments was set at₹2 crore(May 2026).

Static GK (2)

Organisations and Headquarters · Research institutes and laboratories

Q18. On May 13, 2026, ISRO Telemetry, Tracking and Command Network (ISTRAC) signed a landmark MoU with SAMEER at Indian Institute of Technology Bombay. SAMEER functions under which Union Ministry?

  1. (a) Ministry of Communications
  2. (b) Ministry of Defence
  3. (c) Ministry of Electronics and Information Technology
  4. (d) Ministry of Science and Technology
Answer & solution

Answer: (c) Ministry of Electronics and Information Technology

Answer: Option 3 – Ministry of Electronics and Information Technology.
•SAMEERfunctions under theMinistry of Electronics and IT (MeitY).
Space, Defence and Technology · Missiles and weapon systems

Q19. In 2025, which DRDO-led project was identified as the India’s strategic initiative for developing an indigenous extended-range surface-to-air missile system capable of multi-layer threat interception?

  1. (a) Project SURAKSHA
  2. (b) Project Kusha
  3. (c) Raksha Shakti project
  4. (d) DEFENCE-X
Answer & solution

Answer: (b) Project Kusha

Answer: Option 2 – Project Kusha.
•Project Kushais DRDO's indigenous long-range (extended-range) surface-to-air missile programme.

Economics (1)

Public Finance - Budget and Taxation · Union Budget - latest highlights

Q20. As per the Union Budget 2025-26, how many PM Research Fellowships will be provided for technological research in IITs and IISc, with enhanced financial support over the next five years?

  1. (a) 14,000
  2. (b) 12,000
  3. (c) 10,000
  4. (d) 16,000
Answer & solution

Answer: (c) 10,000

Answer: Option 3 – 10,000.
• Union Budget 2025-26 provided10,000PM Research Fellowships for IITs and IISc.

Physics (10)

Sound and Waves · Speed of sound in different media

Q21. Which of the following statements best describes how sound travels through different materials?

  1. (a) Sound travels at the same speed in all materials.
  2. (b) Sound travels fastest in liquids and slowest in gases.
  3. (c) Sound travels faster in solids than in liquids and gases.
  4. (d) Sound travels fastest in gases and slowest in solids.
Answer & solution

Answer: (c) Sound travels faster in solids than in liquids and gases.

Answer: Option 3 – Sound travels faster in solids than in liquids and gases.
• Sound needs a medium and travels fastest where particles are closest, i.e.solids > liquids > gases.
Work, Energy and Power · Work and its sign

Q22. A cyclist applies brakes to stop a moving bicycle. The work done by the braking force on the bicycle is _______.

  1. (a) Both positive and negative
  2. (b) Zero
  3. (c) Negative only
  4. (d) Positive only
Answer & solution

Answer: (c) Negative only

Answer: Option 3 – Negative only.
• The braking force acts opposite to the motion, so the work done by it isnegative.
Sound and Waves · Loudness, pitch, quality and decibel

Q23. Which statement is true about two sounds with the same amplitude but different frequencies?

  1. (a) They have the same frequency but different amplitudes
  2. (b) They have the same loudness but different pitch
  3. (c) They travel at different speeds in the same medium
  4. (d) They have the same pitch but different loudness
Answer & solution

Answer: (b) They have the same loudness but different pitch

Answer: Option 2 – They have the same loudness but different pitch.
• Amplitude decides loudness (same here); frequency decides pitch (different) ⇒ same loudness, different pitch.
Electricity · Electric power and electrical energy

Q24. A student wants to reduce the power consumed by a device without changing the current. Which action will achieve this?

  1. (a) Decrease the resistance in the circuit
  2. (b) Increase the resistance in the circuit
  3. (c) increase the temperature in the circuit
  4. (d) Increase the voltage applied
Answer & solution

Answer: (a) Decrease the resistance in the circuit

Answer: Option 1 – Decrease the resistance in the circuit.
• Power P = I²R. With current fixed, loweringRlowers the power consumed.
Magnetism and Magnetic Effects of Current · Electromagnetic induction and Faraday's laws

Q25. A coil of wire is moved rapidly into a region with a strong magnetic field. Which change will most likely increase the magnitude of the induced current in the coil?

  1. (a) Rotating the coil at the same speed within the field
  2. (b) Increasing the speed at which the coil enters the magnetic field
  3. (c) Holding the coil stationary in the field
  4. (d) Using a thicker wire for the coil
Answer & solution

Answer: (b) Increasing the speed at which the coil enters the magnetic field

Answer: Option 2 – Increasing the speed at which the coil enters the field.
• Faster change of flux induces a larger EMF/current (Faraday's law).
Motion · Distance and displacement

Q26. Which of the following vectors correctly represents the displacement if an object moves from the point (0, 0) to the point (4, -3) in a plane?

  1. (a) (-3, 4)
  2. (b) (3, -4)
  3. (c) (4, -3)
  4. (d) (-4, 3)
Answer & solution

Answer: (c) (4, -3)

Answer: Option 3 – (4, −3).
• Displacement from (0,0) to (4,−3) is the vector(4, −3).
Work, Energy and Power · Potential energy

Q27. A climber is carrying a backpack up a mountain with varying slopes. At which point during the climb is the potential energy of the backpack at its maximum, assuming no energy is lost and the mass remains constant?

  1. (a) At the halfway point up the mountain
  2. (b) At the highest elevation reached during the climb
  3. (c) At the steepest slope of the climb
  4. (d) At the starting position at the mountain base
Answer & solution

Answer: (b) At the highest elevation reached during the climb

Answer: Option 2 – At the highest elevation reached during the climb.
• P.E. = mgh, so it is maximum at thegreatest height.
Sources of Energy · Conventional sources and fossil fuels

Q28. Select the correct option regarding the following two statements labelled Assertion (A) and Reason (R).Assertion (A): Coal and petroleum are called fossil fuels.Reason (R): They were formed from the remains of ancient plants and animals.

  1. (a) A is false, but R is true.
  2. (b) A is true, but R is false.
  3. (c) Both A and R are true, and R is the correct explanation of A.
  4. (d) Both A and R are true, and R is not the correct explanation of A.
Answer & solution

Answer: (c) Both A and R are true, and R is the correct explanation of A.

Answer: Option 3 – Both A and R are true, and R is the correct explanation of A.
• Fossil fuels formed from ancient dead organisms – R correctly explains why coal and petroleum are called fossil fuels.
Force and Laws of Motion · Force, its effects and types

Q29. If an object continues moving in the same direction at the same speed, what can be inferred about the forces acting on it?

  1. (a) The forces are unbalanced
  2. (b) The forces always cancel gravity
  3. (c) All forces are in same direction as direction of motion
  4. (d) The forces are balanced
Answer & solution

Answer: (d) The forces are balanced

Answer: Option 4 – The forces are balanced.
• Constant velocity (same speed, same direction) means net force = 0, i.e.balanced forces.
Light - Reflection and Mirrors · Concave mirror - image formation and uses

Q30. A ray parallel to the principal axis strikes a concave mirror. After reflection, it passes through which point?

  1. (a) The vertex of the mirror
  2. (b) The focus of the mirror
  3. (c) The pole of the mirror
  4. (d) The center of curvature
Answer & solution

Answer: (b) The focus of the mirror

Answer: Option 2 – The focus of the mirror.
• A ray parallel to the principal axis reflects through thefocusof a concave mirror.

Biology (7)

Reproduction · Human female reproductive system and menstrual cycle

Q31. All of the following are parts of the human female reproductive system, EXCEPT ________.

  1. (a) Vagina
  2. (b) Vas deferens
  3. (c) Uterus
  4. (d) Oviducts
Answer & solution

Answer: (b) Vas deferens

Answer: Option 2 – Vas deferens.
• Thevas deferensis part of the *male* reproductive system; vagina, uterus and oviducts are female organs.
Diseases, Immunity and Health · Drug and alcohol abuse

Q32. A patient develops frequent coughing and respiratory infections after starting to smoke. Which physiological change best explains this?

  1. (a) Loss of cilia function in the upper respiratory tract
  2. (b) Excess saliva secretion in the oral cavity
  3. (c) Bronchial constriction throughout the lungs
  4. (d) Rapid increase in blood pressure and heart rate
Answer & solution

Answer: (a) Loss of cilia function in the upper respiratory tract

Answer: Option 1 – Loss of cilia function in the upper respiratory tract.
• Smoking paralyses/destroys thecilia, so mucus and germs are not cleared, causing coughing and infections.
Diversity and Classification of Living Organisms · Monera, Protista and Fungi

Q33. A waterborne outbreak reveals that causative agent is single-celled, nucleus-lacking organisms thriving in sewage and animal intestines. Which group do these organisms most likely belong to?

  1. (a) Kingdom Monera
  2. (b) Kingdom Fungi
  3. (c) Kingdom Plantae
  4. (d) Kingdom Protista
Answer & solution

Answer: (a) Kingdom Monera

Answer: Option 1 – Kingdom Monera.
• Single-celled organismslacking a true nucleus(prokaryotes, e.g. bacteria) belong toKingdom Monera.
Human Physiology - Respiration, Circulation and Excretion · Blood vessels, circulation and blood pressure

Q34. A doctor observes a blood vessel with thick, elastic walls under a microscope. What is this vessel most likely to be?

  1. (a) A vein
  2. (b) An artery
  3. (c) A lymph vessel
  4. (d) A capillary
Answer & solution

Answer: (b) An artery

Answer: Option 2 – An artery.
•Arterieshave thick, elastic muscular walls to withstand high-pressure blood flow.
Heredity and Evolution · Theories of evolution (Lamarck, Darwin)

Q35. A researcher is studying how small differences among individuals over generations contribute to the emergence of new life forms. Which process does this scenario illustrate?

  1. (a) Taxonomic classification
  2. (b) Evolution of biodiversity
  3. (c) Ecological succession
  4. (d) Genetic drift
Answer & solution

Answer: (b) Evolution of biodiversity

Answer: Option 2 – Evolution of biodiversity.
• Small heritable variations accumulating over generations to form new species isevolution.
Reproduction · Human male reproductive system

Q36. The __________ of a sperm cell contains the genetic material required for fertilisation.

  1. (a) Fluid
  2. (b) Head
  3. (c) Tail
  4. (d) Membrane
Answer & solution

Answer: (b) Head

Answer: Option 2 – Head.
• Theheadof the sperm carries the genetic material (nucleus/DNA).
Control and Coordination · Neuron and nerve impulse

Q37. Why is the structure of neurons important for their role in the nervous system?

  1. (a) To produce enzymes
  2. (b) To store nutrients
  3. (c) Repairs tissues
  4. (d) Allows signal transmission
Answer & solution

Answer: (d) Allows signal transmission

Answer: Option 4 – Allows signal transmission.
• A neuron's long structure (dendrites, axon) is suited totransmitting electrical impulses.

Chemistry (6)

Structure of Atom · Isotopes, isobars and isotones

Q38. Which of the following statements is true about isotopes?

  1. (a) Isotopes have different atomic numbers but same mass number
  2. (b) Isotopes are different elements with same atomic number
  3. (c) Isotopes have the same number of protons but different number of neutrons
  4. (d) Isotopes have the same number of neutrons
Answer & solution

Answer: (c) Isotopes have the same number of protons but different number of neutrons

Answer: Option 3 – Isotopes have the same number of protons but different number of neutrons.
• Isotopes = same atomic number (protons), different mass number (neutrons).
Acids, Bases and Salts · Properties of acids

Q39. Why should acids be diluted carefully?

  1. (a) To avoid splashing
  2. (b) To make reaction fast
  3. (c) To increase acidity
  4. (d) To reduce concentration
Answer & solution

Answer: (a) To avoid splashing

Answer: Option 1 – To avoid splashing.
• Acid is added to water slowly because the reaction is highly exothermic; thisprevents splashingof hot acid.
Carbon and its Compounds · Bonding in carbon and catenation

Q40. Why do covalent compounds generally have low melting points?

  1. (a) Because their molecules are large
  2. (b) Because they are composed of metals
  3. (c) Because their bonds within molecules are weak
  4. (d) Because their intermolecular forces are weak
Answer & solution

Answer: (d) Because their intermolecular forces are weak

Answer: Option 4 – Because their intermolecular forces are weak.
• Covalent compounds haveweak intermolecular forces, so little energy is needed to melt them ⇒ low melting points.
Mixtures, Solutions and Separation · Suspensions and colloids

Q41. The correct decreasing order of the size of the particles in suspension, solution, and colloid is:

  1. (a) colloid > suspension > solution
  2. (b) solution > colloid > suspension
  3. (c) suspension > colloid > solution
  4. (d) suspension > solution > colloid
Answer & solution

Answer: (c) suspension > colloid > solution

Answer: Option 3 – suspension > colloid > solution.
• Particle size order:suspension (largest) > colloid > solution (smallest).
Atoms, Molecules and Mole Concept · Atomic mass and molecular mass

Q42. What is the formula unit mass of calcium chloride (CaCl₂)?

  1. (a) 71 u
  2. (b) 46 u
  3. (c) 65 u
  4. (d) 111 u
Answer & solution

Answer: (d) 111 u

Answer: Option 4 – 111 u.
• CaCl₂ = 40 + 2×35.5 = 40 + 71 =111 u.
Metals and Non-metals · Reactivity series

Q43. When a metal is placed in the salt solution of another metal and a reaction occurs, what does it indicate about the two metals?

  1. (a) The metal in solution is more reactive
  2. (b) No information about reactivity can be determined
  3. (c) Both metals are equally reactive
  4. (d) The solid metal is more reactive than the metal in solution
Answer & solution

Answer: (d) The solid metal is more reactive than the metal in solution

Answer: Option 4 – The solid metal is more reactive than the metal in solution.
• A displacement reaction occurs when theadded solid metal is more reactiveand displaces the metal from its salt.
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