RRB General Science is one of the most decisive sections in Railway Recruitment Board (RRB) examinations, such as RRB NTPC, RRB Group D, RRB ALP, and RRB Technician. While many candidates underestimate this section, assuming it to be “basic science,” the reality is quite different. Over the years, RRB General Science questions have evolved in terms of conceptual depth, application-based framing, and interdisciplinary coverage.
What is the importance of RRB General Science section?
The importance of RRB General Science tests a candidate’s fundamental understanding of everyday science, making it both fair and challenging. Some of the reasons are given below:
- Asked in almost all major RRB exams
- Questions are direct but concept-based
- High scoring if prepared systematically
- Strong overlap across RRB NTPC, RRB Group D, ALP, Technician
Topic-Wise Weightage of RRB General Science Questions
The following table reflects average trends observed across recent RRB exams:
| Subject | Approximate Weightage | Nature of Questions |
| Physics | 30–35% | Conceptual, numerical-light |
| Biology | 35–40% | Factual + conceptual |
| Chemistry | 25–30% | Memory-based + logic |
Where can I get the RRB General Science Mock Questions?
We have prepared a set of important questions in general science for RRB Group D and other exams. Given below are the questions and their answers:
Q1. A body is thrown vertically upward. What happens to its kinetic energy at the highest point?
A) Maximum
B) Half of initial value
C) Zero
D) Equal to potential energy
Q2. The SI unit of electric potential difference is defined as:
A) Work done per unit charge
B) Charge per unit time
C) Force per unit charge
D) Energy per unit current
Q3. Why does a steel ship float on water while a steel needle sinks?
A) Steel ship has less density
B) Steel ship displaces more water
C) Needle has more mass
D) Steel ship has hollow structure only
Q4. Which phenomenon explains the twinkling of stars?
A) Reflection
B) Refraction
C) Diffraction
D) Dispersion
Q5. The time period of a simple pendulum depends on:
A) Mass of bob
B) Shape of bob
C) Length of pendulum
D) Material of string
Q6. Sound cannot travel through:
A) Air
B) Water
C) Vacuum
D) Steel
Q7. Which color of light has the highest frequency?
A) Red
B) Yellow
C) Blue
D) Violet
Q8. What happens to the resistance of a conductor when its temperature increases?
A) Decreases
B) Remains same
C) Increases
D) Becomes zero
Q9. Which mirror is used in vehicles as rear-view mirror?
A) Concave
B) Plane
C) Convex
D) Cylindrical
Q10. Which physical quantity is measured in watt?
A) Energy
B) Power
C) Force
D) Work
Q11. Which device converts mechanical energy into electrical energy?
A) Motor
B) Generator
C) Transformer
D) Battery
Q12. The phenomenon responsible for rainbow formation is:
A) Reflection only
B) Refraction only
C) Dispersion and internal reflection
D) Diffraction
Q13. What type of lens is used to correct myopia?
A) Convex
B) Concave
C) Cylindrical
D) Plane
Q14. Which of the following has the maximum pressure?
A) Sharp knife
B) Blunt knife
C) Thick object
D) Flat object
Q15. The unit of frequency is:
A) Joule
B) Hertz
C) Newton
D) Pascal
Q16. What happens to weight of an object on the Moon?
A) Becomes zero
B) Increases
C) Decreases
D) Remains same
Q17. Which wave is used in microwave ovens?
A) Infrared
B) Radio
C) Microwaves
D) X-rays
Q18. Which acid is present in lemon?
A) Acetic acid
B) Citric acid
C) Lactic acid
D) Oxalic acid
Q19. Rusting of iron is an example of:
A) Reduction
B) Neutralization
C) Oxidation
D) Displacement
Q20. Which gas is released during photosynthesis?
A) Nitrogen
B) Oxygen
C) Carbon dioxide
D) Hydrogen
Q21. The pH value of pure water is:
A) 5
B) 6
C) 7
D) 8
Q22. Which metal is liquid at room temperature?
A) Sodium
B) Mercury
C) Lead
D) Zinc
Q23. Which substance is used to check acidity of soil?
A) Litmus
B) Turmeric
C) pH paper
D) Phenolphthalein
Q24. Which non-metal is a good conductor of electricity?
A) Sulphur
B) Phosphorus
C) Graphite
D) Iodine
Q25. The chemical formula of washing soda is:
A) NaHCO₃
B) Na₂CO₃·10H₂O
C) CaCO₃
D) NaOH
Q26. Which gas is responsible for acid rain?
A) Oxygen
B) Nitrogen
C) Sulphur dioxide
D) Hydrogen
Q27. What type of reaction is combustion?
A) Endothermic
B) Exothermic
C) Neutralization
D) Decomposition
Q28. Which metal is extracted by electrolysis?
A) Iron
B) Copper
C) Aluminium
D) Zinc
Q29. Which chemical is used to preserve food?
A) Baking soda
B) Sodium benzoate
C) Washing soda
D) Bleaching powder
Q30. Which element is essential for rusting?
A) Nitrogen
B) Hydrogen
C) Oxygen
D) Carbon
Q31. What is the nature of metal oxides?
A) Acidic
B) Basic
C) Neutral
D) Amphoteric
Q32. Which fuel has the highest calorific value?
A) Coal
B) Petrol
C) LPG
D) Hydrogen
Q33. Which compound is used in bleaching cotton?
A) Baking soda
B) Bleaching powder
C) Washing soda
D) Alum
Q34. Which acid is present in curd?
A) Acetic
B) Citric
C) Lactic
D) Formic
Q35. Which part of the cell is known as the “powerhouse”?
A) Ribosome
B) Nucleus
C) Mitochondria
D) Golgi body
Q36. The functional unit of kidney is:
A) Neuron
B) Nephron
C) Alveoli
D) Villus
Q37. Which vitamin deficiency causes night blindness?
A) Vitamin B
B) Vitamin C
C) Vitamin A
D) Vitamin D
Q38. Blood group is determined by:
A) RBC
B) WBC
C) Platelets
D) Plasma
Q39. Which organ controls all activities of the body?
A) Heart
B) Brain
C) Liver
D) Lungs
Q40. Photosynthesis occurs in:
A) Mitochondria
B) Ribosomes
C) Chloroplast
D) Vacuole
Q41. Which gas is essential for respiration?
A) Carbon dioxide
B) Nitrogen
C) Oxygen
D) Hydrogen
Q42. The main function of red blood cells is to:
A) Fight infection
B) Help clotting
C) Transport oxygen
D) Produce hormones
Q43. Which disease is caused by a virus?
A) Malaria
B) Tuberculosis
C) Dengue
D) Typhoid
Q44. Which part of the plant absorbs water?
A) Stem
B) Leaves
C) Root hair
D) Flower
Q45. The largest organ of the human body is:
A) Liver
B) Brain
C) Skin
D) Heart
Q46. Which hormone regulates blood sugar?
A) Thyroxine
B) Insulin
C) Adrenaline
D) Estrogen
Q47. Which component of blood helps in clotting?
A) Plasma
B) RBC
C) WBC
D) Platelets
Q48. Which disease is caused by iodine deficiency?
A) Goitre
B) Rickets
C) Scurvy
D) Anaemia
Q49. Which organ system helps in movement?
A) Nervous
B) Digestive
C) Muscular
D) Respiratory
Q50. Which cell lacks a nucleus in humans?
A) WBC
B) RBC
C) Neuron
D) Platelet
How do I prepare for RRB Science Questions?
Candidates need to follow certain tips and guidelines, such as following the syllabus and exam pattern, attempting mock tests for scoring well in RRB science questions. Given below are some of the tips:
- Understand the complete syllabus and exam pattern properly
- Attempt mock tests regularly
- Solve previous year papers frequently
- Identify your weak areas and work on them
- Monitor your performance through mock tests
- Make short notes for last-minute revision
We hope you got a good idea about the level of difficulty in RRB General Science questions. To read more such blogs, visit our Oliveboard website.
FAQs
General Science is one of the most important sections in all the Railway Exams. Practicing questions from this section is very important if candidates want to qualify for any of the RRB exams.
Yes, you must practice mock tests for RRB exams regularly if you want to qualify for the exam.
To qualify for RRB exams, candidates need to have a proper study schedule. They must study for at least 8-9 hours daily to score well.
A complete set of 20 mock questions is provided in this article.
Yes, the answers are also provided to each question in this article.
Hello! This is Arijit Dutta. I am a skilled Content Writer at Oliveboard with nearly 3+ years of experience in crafting engaging, informative, and exam-focused content for the Railways Domain. With a strong command of language and a keen understanding of learner needs, I contribute significantly to Oliveboard’s mission of delivering high-quality educational resources. Passionate about clear communication and continuous learning, I consistently create content that helps government job aspirants achieve their goals. Outside of work, I enjoy playing cricket and listening to music, which helps me stay balanced and creative in my professional journey.