RRB Group D 2026 | 3rd August 3rd Shift Questions & Answers | Railway Exam

Main ideas / concepts covered (Q&A format)

1. Gravitational potential energy

   • Formula given: ( P = mgh )
   • (Note: the correct concept is gravitational potential energy.)

2. Male reproductive system (identification of what is not included)

   • Fallopian tube is not part of the male reproductive system.

3. Prevention of rusting in iron

   • Coating iron with zinc: Galvanization.

4. Energy molecule produced/used by plants

   • Plants make usable energy as ATP (via cellular respiration/mitochondria).

5. Image formed by a concave mirror

   • If the object is between principal focus (F) and pole (P): image is
     • virtual, erect, and enlarged.

6. Food preservation using vinegar (pickles)

   • Works by lowering pH / creating acidic conditions, so microbes cannot survive.

7. Electric energy calculation

   • Heater: 2000 W running for 1 hour
   • Electric energy consumed: 72 lakh joule (as given).

8. Plant tissue for flexibility

   • Collenchyma provides flexibility and bending without breaking.

9. Why a pool appears shallower

   • Due to refraction of light.

10. Refractive index change from water to air

    • Relative refractive index of air with respect to water decreases.

11. Tagore anniversary in 2026

    • 165th birthday anniversary of Rabindranath Tagore.

12. NIMHANS 2 in Union Budget 2026–27

    • Linked to the health care and mental health sector.

13. Gender budget share (women & girls)

    • 9.37% of the total Union budget.

14. Plant growth in width

    • Due to lateral meristem.

15. Charge of a neutron

    • Neutron has a neutral charge.

16. Why objects (pencil/rod) appear bent in water

    • Due to refraction of light.

17. Molecular mass of H₂O and CH₃COOH

    • Given results: 18 and 60 (units as stated).

18. Padma Vibhushan (Art) for 2026

    • Awardee: M.S. N. Rajam.

19. India’s largest automobile export hub (record loading)

    • Mundra Port (record loading of 6,008 cars).

20. Australian Open tournament category

    • Part of the Grand Slam tennis tournament.

21. Final medal tally at Milano Cortina 2026 Winter Olympics

    • Top country: Norway (total 41 medals).

22. New Controller General of Defense Accounts (May 2026)

    • Smt. Alka Nangia Arora.

23. Venue of India AI Impact Summit 2026 (New Delhi)

    • Bharat Mandapam.

24. Method to concentrate/separate iron oxide ores

    • Magnetic separation.

25. Best conductor for flow of electricity (as per option)

    • Aluminum.

26. Photosynthesis byproduct from water photolysis

    • Released gas: oxygen.

27. Average speed calculation

    • Distance: 30 cm in 1.5 hours
    • Average speed stated: 20 cm per hour.

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Methodology / instructions presented

• None explicitly as a step-by-step procedure.
• The content is primarily multiple-choice Q&A where “correct answer” selections are provided.
• A conceptual process mentioned:
  • Photosynthesis (photolysis of water) → releases oxygen.

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Speakers / sources featured

• No named speaker is identified in the subtitles.
• The host/video creator is only referenced indirectly (e.g., prompts to subscribe/download PDFs); no personal name is provided.
• Sources appear as institutions/named entities in questions (e.g., Union Budget 2026–27, NIMHANS 2, Bharat Mandapam, Padma awards), not as interviewees.