Rrb Group D Previous Year Question Paper : In all railway exams, many questions related to general science are asked. These science questions are typically based on topics up to the 10th-grade level, as most fundamental concepts are covered by then. That is why questions related to general science appear in all railway exams.
For candidates preparing for railway exams, this post provides important general science questions and answers in one line, making them easy to remember. If you find these questions and answers useful, do share them with your friends.
Rrb Group D Previous Year Question Paper
Q 1. If one parent has blood type AB and the other O, what blood types can their children have?
Answer: Their children will most likely have blood type A or B.
Q 2. Which blood group can receive blood from any group?
Answer: A person with an AB blood group can receive blood from any group.
Q 3. Which vitamin is found in cod liver oil obtained from fish?
Answer: Cod liver oil is rich in vitamin D.
Q 4. What is Ex situ conservation?
Answer: It is the process of moving endangered or rare species from their natural habitat to another habitat for their protection and conservation.
Q 5. What is the largest contributor to oxygen production on Earth?
Answer: Phytoplankton masses provide the maximum oxygen.
Q 6. Is noise pollution responsible for skin diseases?
Answer: No, skin diseases are not an effect of noise pollution.
Q 7. Which parts of the coriander plant are useful?
Answer: The leaves and dried fruits of coriander are useful.
Q 8. From which plant part is opium obtained?
Answer: Opium is obtained from the unripe fruit of the poppy plant.
Q 9. Which part of the cinnamon tree is used as a spice?
Answer: The bark of the cinnamon tree is used as a spice.
Q 10. Which part of the plant is used to make saffron spice?
Answer: The stigma of the plant is used to make saffron.
Q 11. From which part of the Sunai plant is fiber obtained?
Answer: Fiber is obtained from the stem.
Q 12. Which plant stems are used to produce flax, hemp, and jute?
Answer: Flax, hemp, and jute are obtained from the stem.
Q 13. Which part of the plant is used to obtain cloves?
Answer: Cloves are obtained from the flower bud.
Q 14. From which part of the plant is opium extracted?
Answer: Opium is extracted from the latex of the unripe fruit.
Q 15. Which type of wood is used for making cricket bats?
Answer: Salix purpurea wood is used for making cricket bats.
Q 16. Which plant tissue is responsible for water transportation?
Answer: Xylem tissue is responsible for water transportation in vascular plants.
Q 17. What causes water presence in plants?
Answer: Water transport is responsible for the presence of water in plants.
Q 18. Which plant tissue is responsible for food transport?
Answer: Phloem is responsible for food transport in plants.
Q 19. Which human blood cells lack a nucleus?
Answer: Red blood cells do not have a nucleus.
Q 20. Why are lysosomes called “suicide bags” of the cell?
Answer: Lysosomes contain digestive enzymes that can break down the cell if needed, leading to cell death.
Q 21. What is the nature of the cell membrane in organelles?
Answer: The cell membrane is semipermeable.
Q 22. Which organelle is called the “powerhouse of the cell”?
Answer: Mitochondria are called the “powerhouse of the cell.”
Q 23. Which human blood cells lack mitochondria?
Answer: Red blood cells do not contain mitochondria.
Q 24. Apart from the nucleus, which other organelle contains DNA?
Answer: Mitochondria also contain DNA.
Q 25. Where is DNA found outside the nucleus?
Answer: DNA is found in mitochondria.
Q 26. What is the basic protein to which DNA is attached?
Answer: DNA is attached to a protein called histone.
Q 27. What is the basic unit of life?
Answer: The basic unit of life is the cell.
Q 28. Which organelle is found in plant cells but not in animal cells?
Answer: Chloroplast is found in plant cells but not in animal cells.
Q 29. What is the living part of the cell called?
Answer: The cytoplasm, made up of nuclear fluid and other organelles, is the living part of the cell.
Q 30. What percentage of a cell is composed of water?
Answer: More than 80% of a cell is water.
Q 31. What is the bacterial decomposition of organic matter under anaerobic conditions called?
Answer: It is called fermentation.
Q 32. Which type of organisms belong to umbrella fungi?
Answer: Fungi belong to the umbrella fungi group.
Q 33. What is a typical food web composed of?
Answer: A typical food web includes a tightly packed fungal network.
Q 34. Why does dough rise when yeast is added?
Answer: Dough rises due to the release of carbon dioxide gas by yeast.
Q 35. What type of microorganism is yeast?
Answer: Yeast is a fungus.
Q 36. How does yeast help in making bread?
Answer: Yeast acts as a catalyst for fermentation in bread making.
Q 37. How does yeast reproduce?
Answer: Yeast reproduces through budding.
Q 38. Who discovered penicillin?
Answer: Penicillin was discovered by Alexander Fleming.
Q 39. Which bacteria are responsible for the curdling of milk?
Answer: Lactobacillus bacteria are responsible for curdling milk.
Q 40. Which bacteria help in nitrogen fixation?
Answer: Rhizobium bacteria fix nitrogen.
Q 41. In which plant are symbiotic nitrogen-fixing bacteria found?
Answer: Symbiotic nitrogen-fixing bacteria are found in pea plants.
Q 42. Where do nitrogen-fixing bacteria live in leguminous plants?
Answer: They live in nodules present in the roots of leguminous plants.
Q 43. Which bacterial strains can be used to clean marine oil spills?
Answer: Pseudomonas bacterial strains can help in cleaning marine oil spills.
Q 44. How does refrigeration help in food preservation?
Answer: Refrigeration slows down the rate of biochemical reactions in food.
Q 45. Who first explained blood circulation?
Answer: William Harvey first explained blood circulation.
Q 46. What is the function of the pacemaker in the human body?
Answer: The pacemaker starts the heartbeat.
Q 47. What causes a heart attack?
Answer: A heart attack occurs due to a lack of blood supply to the heart.
Q 48. What is the largest artery in the human body?
Answer: The aorta is the largest artery in the human body.
Q 49. Which type of blood do arteries carry?
Answer: Arteries carry oxygen-rich blood.
Q 50. Which artery carries deoxygenated blood?
Answer: The pulmonary artery carries deoxygenated (impure) blood.
In this post, you have been provided with very important general science questions and answers related to railway exam preparation. These questions have been asked in previous exams and may appear in upcoming ones. Candidates preparing for railway exams should read these questions carefully.