General Science · NDA previous year questions

2025 10 questions

1. Q532025 · 14 Sept 2025

   One parsec in astronomical units (A.U.) is about

   1. A.$2\times 10^3$ A.U.
   2. B.$2\times 10^4$ A.U.
   3. C.$2\times 10^5$ A.U.
   4. D.$2\times 10^6$ A.U.
   Show answer

   Answer: C

2. Q672025 · 14 Sept 2025

   A body sinks in water when

   1. A.density of water is greater than density of body
   2. B.density of water is less than density of body
   3. C.density of water is equal to density of body
   4. D.the body is heavy
   Show answer

   Answer: B

3. Q732025 · 14 Sept 2025

   A person can see nearby objects clearly but cannot see distant object distinctly, the person is suffering with

   1. A.Hypermetropia
   2. B.Presbyopia
   3. C.Myopia
   4. D.None of above
   Show answer

   Answer: C

4. Q792025 · 14 Sept 2025

   Which one of the following is NOT present in cement ?

   1. A.$2CaO.Si{\mathrm{O}}_2$
   2. B.$3CaO.Si{\mathrm{O}}_2$
   3. C.$4CaO.Si{\mathrm{O}}_2$
   4. D.$3CaO.A{\mathrm{l}}_2{\mathrm{O}}_3$
   Show answer

   Answer: C

5. Q852025 · 14 Sept 2025

   Which one: of the following is considered to be the purest source of water ?

   1. A.River water
   2. B.Sea water
   3. C.Well water
   4. D.Rain water
   Show answer

   Answer: D

6. Q912025 · 14 Sept 2025

   The book ‘The Origin of Species by Means of Natural Selection’ was authored by

   1. A.Charles Darwin
   2. B.Carolus Linnaeus
   3. C.Barbara McClintock
   4. D.Copernicus
   Show answer

   Answer: A

7. Q932025 · 14 Sept 2025

   The amount of air breathed in and out during a normal respiration by human lungs is referred to as

   1. A.Vital capacity
   2. B.Tidal volume
   3. C.Inspiratory volume
   4. D.Total lung capacity
   Show answer

   Answer: B

8. Q572025 · 13 Apr 2025

   Which one of the following is also known as Dry ice in its solid form?

   1. A.SiO₂
   2. B.CO₂
   3. C.CaO
   4. D.MgO
   Show answer

   Answer: B

9. Q702025 · 13 Apr 2025

   Cambium is an example of

   1. A.Lateral meristem
   2. B.Apical meristem
   3. C.Intercalary meristem
   4. D.Permanent tissue
   Show answer

   Answer: A

10. Q742025 · 13 Apr 2025

    Initial discovery of antibiotic penicillin was done by

    1. A.Francis Crick
    2. B.Maurice Wilkins
    3. C.Charles Darwin
    4. D.Alexander Fleming
    Show answer

    Answer: D