Key Takeaways
- The general science for RRB Group D exam tests knowledge in Physics, Chemistry, and Biology, accounting for 25-30% of the total score.
- Key topics include units and measurements, cellular biology, current electricity, and the properties of matter.
- Candidates should use NCERT textbooks for fundamental concepts and practice multiple-choice questions regularly.
- Understanding diagrams and real-life applications of science helps in effectively tackling questions during the exam.
- A free PDF with sample questions is available to aid in preparation for the general science section.
The RRB Group D Exam 2026 is a gateway for candidates aspiring to join various posts in Indian Railways. Among the different subjects included in the examination, general science for RRB Group D plays a crucial role. Understanding this section thoroughly is essential, as it forms a significant portion of the syllabus and tests. The general science section evaluates a candidate’s basic scientific knowledge, reasoning, and application skills. In this article, we provide a comprehensive guide on General Science for RRB Group D, including topics, strategies, and a free PDF to boost your preparation effectively.
Download Top RRB Group D General Science Questions PDF
We have given below a free PDF on the top RRB Group D General Science Questions. To understand the difficulty level of the questions, download and start practising.
Practice the Most Repeated Questions for RRB Group D General Science (Live)
Given below are some of the most repeated general science questions for RRB Group D Exam. Attempt them live and check your score as per the real exam marking scheme. You will get +2 for every correct answer, – 0.5 for every wrong answer, and 0 for unattempted questions.
Q.1 Which gas is essential for the process of photosynthesis?
- Oxygen
- Nitrogen
- Carbon dioxide
- Hydrogen
Correct Answer: 3
Q.2 What is the SI unit of electric current?
- Volt
- Ampere
- Ohm
- Watt
Correct Answer: 2
Q.3 Which part of the human brain controls balance and posture?
- Cerebrum
- Medulla
- Cerebellum
- Hypothalamus
Correct Answer: 3
Q.4 Which acid is present in lemon juice?
- Acetic acid
- Citric acid
- Lactic acid
- Tartaric acid
Correct Answer: 2
Q.5 What type of energy is possessed by a moving object?
- Potential energy
- Heat energy
- Kinetic energy
- Chemical energy
Correct Answer: 3
Q.6 Which vitamin is produced in the human body when exposed to sunlight?
- Vitamin A
- Vitamin B
- Vitamin C
- Vitamin D
Correct Answer: 4
Q.7 Which organ in the human body filters blood?
- Liver
- Heart
- Kidney
- Lungs
Correct Answer: 3
Q.8 What is the boiling point of water at sea level?
- 90°C
- 95°C
- 100°C
- 105°C
Correct Answer: 3
Q.9 Which metal is liquid at room temperature?
- Sodium
- Mercury
- Lead
- Aluminium
Correct Answer: 2
Q.10 What is the main source of energy for the Earth?
- Moon
- Wind
- Sun
- Water
Correct Answer: 3
Q.11 Which blood group is known as the universal donor?
- A
- B
- AB
- O
Correct Answer: 4
Q.12 Which gas is released during respiration?
- Oxygen
- Nitrogen
- Carbon dioxide
- Hydrogen
Correct Answer: 3
Q.13 Which part of the plant is responsible for photosynthesis?
- Root
- Stem
- Leaf
- Flower
Correct Answer: 3
Q.14 What is the chemical formula of common salt?
- NaCl
- KCl
- CaCl₂
- Na₂CO₃
Correct Answer: 1
Q.15 Which mirror is used as a rear-view mirror in vehicles?
- Concave mirror
- Convex mirror
- Plane mirror
- Cylindrical mirror
Correct Answer: 2
Q.16 Which organ is affected by jaundice?
- Kidney
- Liver
- Heart
- Pancreas
Correct Answer: 2
Q.17 What is the unit of frequency?
- Hertz
- Joule
- Pascal
- Newton
Correct Answer: 1
Q.18 Which vitamin deficiency causes scurvy?
- Vitamin A
- Vitamin B
- Vitamin C
- Vitamin D
Correct Answer: 3
Q.19 Which process converts liquid into gas?
- Condensation
- Freezing
- Evaporation
- Melting
Correct Answer: 3
Q.20 Which gas is filled in electric bulbs?
- Oxygen
- Nitrogen
- Carbon dioxide
- Hydrogen
Correct Answer: 2
Q.21 Which part of the eye controls the amount of light entering?
- Retina
- Iris
- Pupil
- Cornea
Correct Answer: 2
Q.22 Which metal is the best conductor of electricity?
- Copper
- Aluminium
- Silver
- Iron
Correct Answer: 3
Q.23 What is the function of red blood cells?
- Fight infection
- Carry oxygen
- Clot blood
- Digest food
Correct Answer: 2
Q.24 Which gas is responsible for the greenhouse effect?
- Oxygen
- Nitrogen
- Carbon dioxide
- Hydrogen
Correct Answer: 3
Q.25 Which force pulls objects towards the Earth?
- Magnetic force
- Electrostatic force
- Gravitational force
- Frictional force
Correct Answer: 3
Q.26 What is the hardest natural substance?
- Gold
- Iron
- Diamond
- Quartz
Correct Answer: 3
Q.27 Which organ produces insulin?
- Liver
- Pancreas
- Kidney
- Stomach
Correct Answer: 2
Q.28 What is the unit of work?
- Newton
- Watt
- Joule
- Ampere
Correct Answer: 3
Q.29 Which acid is present in vinegar?
- Citric acid
- Acetic acid
- Oxalic acid
- Formic acid
Correct Answer: 2
Q.30 Which gas is used in fire extinguishers?
- Oxygen
- Nitrogen
- Carbon dioxide
- Hydrogen
Correct Answer: 3
Q.31 What type of lens is used to correct myopia?
- Convex lens
- Concave lens
- Cylindrical lens
- Bifocal lens
Correct Answer: 2
Q.32 Which vitamin helps in blood clotting?
- Vitamin A
- Vitamin B
- Vitamin C
- Vitamin K
Correct Answer: 4
Q.33 What is the main component of natural gas?
- Ethane
- Propane
- Butane
- Methane
Correct Answer: 4
Q.34 Which blood cells help in fighting diseases?
- RBC
- WBC
- Platelets
- Plasma
Correct Answer: 2
Q.35 Which phenomenon causes the bending of light?
- Reflection
- Refraction
- Diffraction
- Dispersion
Correct Answer: 2
Q.36 Which mineral is required for healthy teeth?
- Iron
- Calcium
- Sodium
- Potassium
Correct Answer: 2
Q.37 Which part of the atom has a positive charge?
- Electron
- Neutron
- Proton
- Nucleus
Correct Answer: 3
Q.38 What is the speed of light in vacuum?
- 3×10⁶ m/s
- 3×10⁷ m/s
- 3×10⁸ m/s
- 3×10⁹ m/s
Correct Answer: 3
Q.39 Which organ helps in breathing?
- Heart
- Lungs
- Kidney
- Liver
Correct Answer: 2
Q.40 Which gas is used in welding?
- Oxygen
- Nitrogen
- Acetylene
- Carbon dioxide
Correct Answer: 3
Q.41 Which process releases energy in the sun?
- Nuclear fission
- Nuclear fusion
- Combustion
- Respiration
Correct Answer: 2
Q.42 Which vitamin deficiency causes night blindness?
- Vitamin A
- Vitamin B
- Vitamin C
- Vitamin D
Correct Answer: 1
Q.43 What is the chemical symbol of iron?
- Ir
- Fe
- In
- I
Correct Answer: 2
Q.44 Which device converts chemical energy into electrical energy?
- Generator
- Motor
- Battery
- Transformer
Correct Answer: 3
Q.45 Which part of the plant absorbs water?
- Leaf
- Stem
- Root
- Flower
Correct Answer: 3
Q.46 Which metal is used for making electrical wires?
- Iron
- Aluminium
- Copper
- Zinc
Correct Answer: 3
Q.47 What is the unit of pressure?
- Pascal
- Newton
- Joule
- Watt
Correct Answer: 1
Q.48 Which disease is caused by the deficiency of iodine?
- Goitre
- Scurvy
- Rickets
- Anaemia
Correct Answer: 1
Q.49 Which part of the ear maintains balance?
- Cochlea
- Auditory canal
- Semicircular canals
- Eardrum
Correct Answer: 3
Q.50 Which gas is used by plants during respiration?
- Carbon dioxide
- Oxygen
- Nitrogen
- Hydrogen
Correct Answer: 2
What is the importance of General Science in RRB Group D Exam Pattern?
The General Science section in RRB Group D Exam Pattern is designed to test the fundamental understanding of Physics, Chemistry, and Biology of candidates. Check out the details given below:
- The marks weightage for General Science is usually 25-30% of the total exam score.
- Questions are often objective, multiple-choice, testing conceptual clarity rather than calculation-heavy problems.
- Understanding everyday applications of science can help solve tricky questions quickly.
What is the RRB Group D Syllabus for General Science?
The RRB Group D syllabus for general science includes topics like units and measurements, cytology, genetics, current electricity, magnetism, and more. Given below are the details:
| Subject | Topics |
| Physics | Units and measurements, Force and Laws of Motion, Work, Energy, and Power, Gravitation, Pressure, Sound, Waves, Heat, Friction, Light- Reflection and Refraction, Current Electricity, Magnetism, Magnetic Effects of Electric Current, Scientific Instruments, Inventions, Important Discoveries Relating to Physics, Sources of Energy |
| Chemistry | Matter, Atoms and Molecules, Structure of Atoms, Chemical Reactions and Equations, Periodic Classification of Elements, Chemical Bonding, Oxidation & Reduction, Combustion and Flame, Acids, Bases & Salts, Electrolysis, Carbon & its Compounds, Fuels, Metallurgy, Synthetic fibers and Plastics, Metals & Non-Metals, Common Facts and discoveries in chemistry |
| Life Sciences | Introduction, Classification of Organism, Cytology, Genetics, Heredity and Evolution, Botany: Classification of Plant Kingdom, Plant Morphology, Plant Tissue, Photosynthesis, Plant Hormones, Plant Diseases, Ecology & Environment, Pollution, Zoology: Classification of Animal Kingdom, Animal Tissue, Human Blood, Organ & Organ System, Human blood and blood groups, Human Eye, Nutrients, Human Diseases, Natural Resources |
How to prepare for RRB Group D General Science?
To prepare efficiently for the general science section, candidates must understand basic formulas, make notes for Newton’s Law, Ohm’s Law, and more. They must also use the best resources, such as NCERT textbooks, in preparation. Check out the table given below:
| Focus Area | Key Topics | Strategy | Resources |
| Physics | Motion, Force, Electricity | Understand basic formulas and units. Make quick notes for key laws (Newton’s Laws, Ohm’s Law, etc.). Revise diagrams for electric circuits. | NCERT Class 9–10 Physics textbooks. Previous year MCQs. |
| Chemistry | Acids, Bases, Chemical Reactions | Memorize properties, examples, and pH values. Note important reactions (neutralization, displacement, etc.).- Prepare quick reference tables. | NCERT Class 9–10 Chemistry textbooks. Practice MCQs from previous papers. |
| Biology | Human Body, Plants | Focus on diagrams and functions (digestive, respiratory, circulatory systems). Learn plant structures and photosynthesis. | NCERT Class 9–10 Biology textbooks. MCQs for diagram labeling and key functions. |
| General Tips | All Science Basics | Make concise revision notes for quick scanning. Focus on understanding rather than rote memorization. Practice pattern-based MCQs regularly. | NCERT Class 9–10 Biology textbooks. MCQs for diagram labelling and key functions. |
FAQs
NCERT books of classes 6–10 for Physics, Chemistry, and Biology are most recommended.
Questions are usually straightforward and factual, but can be application-based. Understanding concepts is more important than rote learning.
Around 20–25% of total study time should be allocated, focusing on conceptual clarity and revision.
Yes, diagrams like the human heart, plant cell, and digestive system are frequently tested.
Yes, some questions may include recent scientific inventions, environmental issues, or daily-life applications.
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