RRB NTPC PYQ Set 5

  1. Which of the following rivers does NOT originate in India?

    • A. Brahmaputra
    • B. Godavari
    • C. Kaveri
    • D. Mahanadi
    AnswerCorrect: Option A. The Brahmaputra rises in the Chemayungdung glacier in Tibet, outside India.
  2. The book “The Discovery of India” was written by

    • A. C. Rajagopalachari
    • B. Jawaharlal Nehru
    • C. Mahatma Gandhi
    • D. Subhas Chandra Bose
    AnswerCorrect: Option B. Written by Nehru during his Ahmednagar jail term (1942-46).
  3. Which Article of the Indian Constitution deals with the impeachment of the President?

    • A. Article 52
    • B. Article 74
    • C. Article 61
    • D. Article 356
    AnswerCorrect: Option C. Article 61 prescribes the procedure for removal of the President.
  4. The 2026 Commonwealth Games are scheduled to be hosted by

    • A. Australia
    • B. Scotland
    • C. Canada
    • D. India
    AnswerCorrect: Option A. Victoria state (Australia) will host the 2026 edition.
  5. India’s first dedicated solar observatory mission is

    • A. Chandrayaan-3
    • B. Aditya-L1
    • C. AstroSat
    • D. RISAT-2B
    AnswerCorrect: Option B. Aditya-L1 will study the Sun’s corona from L1 point.
  6. Which of the following pairs is NOT correctly matched?

    • A. World Environment Day – 5 June
    • B. World Ozone Day – 16 September
    • C. Earth Day – 22 April
    • D. World Water Day – 14 March
    AnswerCorrect: Option D. World Water Day is observed on 22 March.
  7. The currency of Argentina is

    • A. Peso
    • B. Real
    • C. Lira
    • D. Franc
    AnswerCorrect: Option A. Argentine Peso.
  8. “Saffron” is obtained from which part of the plant?

    • A. Root
    • B. Stigma
    • C. Leaf
    • D. Stem bark
    AnswerCorrect: Option B. Dried stigmas of Crocus sativus flower.
  9. A train crosses a pole in 12 seconds. If the length of the train is 180 m, the speed of the train is

    • A. 54 km/h
    • B. 60 km/h
    • C. 45 km/h
    • D. 72 km/h
    AnswerCorrect: Option A. Speed = 180 m / 12 s = 15 m/s ⇒ 15 × 3.6 = 54 km/h.
  10. The compound interest on ₹5,000 at 8 % p.a. for 2 years, compounded annually, is

    • A. ₹832
    • B. ₹816
    • C. ₹864
    • D. ₹800
    AnswerCorrect: Option A. CI = 5000[(1.08)² – 1] = 5000 × 0.1664 = ₹832.
  11. If 3^(x+2) = 81, then x equals

    • A. 1
    • B. 2
    • C. 3
    • D. 4
    AnswerCorrect: Option B. 81 = 3⁴ ⇒ x + 2 = 4 ⇒ x = 2.
  12. A man sold two pens for ₹1,500 each. On one he gains 25 % and on the other he loses 25 %. His overall gain/loss percent is

    • A. 6.25 % loss
    • B. 6.25 % gain
    • C. No profit no loss
    • D. 5 % loss
    AnswerCorrect: Option A. When gain & loss % same, loss % = (25)²/100 = 6.25 %.
  13. The average of 11 numbers is 42. If the average of first 6 numbers is 37 and that of last 6 numbers is 46, the sixth number is

    • A. 42
    • B. 40
    • C. 38
    • D. 44
    AnswerCorrect: Option B. Sum 11 = 462; sum first 6 = 222; sum last 6 = 276. Sixth = 222 + 276 – 462 = 40.
  14. A can finish a work in 12 days and B in 15 days. If they work together for 4 days, the fraction of work left is

    • A. 1/3
    • B. 2/5
    • C. 3/5
    • D. 2/3
    AnswerCorrect: Option B. 4(1/12 + 1/15) = 4(9/60)= 36/60 = 3/5 done ⇒ 2/5 left.
  15. A cone of height 24 cm has base radius 7 cm. Its curved surface area is (π = 22/7)

    • A. 550 cm²
    • B. 528 cm²
    • C. 484 cm²
    • D. 572 cm²
    AnswerCorrect: Option A. Slant l = √(24²+7²)=25 cm; CSA = πrl = 22/7 × 7 × 25 = 550 cm².
  16. Complete the series: 5, 10, 13, 26, 29, 58, ?

    • A. 61
    • B. 65
    • C. 69
    • D. 118
    AnswerCorrect: Option A. Pattern ×2, +3, ×2, +3 … 58 + 3 = 61.
  17. If ‘MOTHER’ is coded as ‘ORXJKU’, then ‘DAUGHTER’ is coded as

    • A. FDCIJKUX
    • B. GDWJKUHS
    • C. FDWJKUHS
    • D. GDWHUKJS
    AnswerCorrect: Option B. Each letter +3 ⇒ D→G, A→D … R→U.
  18. Select the odd one out:

    • A. Copper
    • B. Aluminium
    • C. Brass
    • D. Silver
    AnswerCorrect: Option C. Brass is an alloy; rest are pure metals.
  19. Statement: All books are pens. Some pens are pencils. Conclusion:

    1. Some books are pencils.
    2. Some pencils are pens.
    • A. Only 1 follows
    • B. Only 2 follows
    • C. Both 1 and 2 follow
    • D. Neither 1 nor 2 follows
    AnswerCorrect: Option B. Only conclusion 2 is valid.
  20. Pointing to a photograph Arun said, “She is the only daughter of my father’s son.” How is the girl related to Arun?

    • A. Daughter
    • B. Sister
    • C. Niece
    • D. Cannot be determined
    AnswerCorrect: Option A. Father’s son is Arun himself; hence only daughter is his daughter.
  21. Which of the following is NOT a greenhouse gas?

    • A. Methane
    • B. Nitrogen
    • C. Nitrous oxide
    • D. Carbon dioxide
    AnswerCorrect: Option B. N₂ is not a greenhouse gas.
  22. The SI unit of electric charge is

    • A. Ampere
    • B. Coulomb
    • C. Volt
    • D. Ohm
    AnswerCorrect: Option B. Coulomb.
  23. The process of conversion of sugar into alcohol is called

    • A. Glycolysis
    • B. Fermentation
    • C. Esterification
    • D. Hydrogenation
    AnswerCorrect: Option B. Fermentation by yeast.
  24. The number of neutrons in the isotope ³⁷Cl is

    • A. 17
    • B. 20
    • C. 37
    • D. 19
    AnswerCorrect: Option B. 37 – 17 = 20 neutrons.
  25. Which organ in the human body is primarily affected by the hepatitis virus?

    • A. Lungs
    • B. Liver
    • C. Kidneys
    • D. Heart
    AnswerCorrect: Option B. Hepatitis causes inflammation of the liver.