RRB JE PYQ Set 10

General Awareness

  1. The “Duckworth–Lewis–Stern” method is associated with which sport?
    A. Football
    B. Cricket
    C. Hockey
    D. Tennis

    AnswerCorrect: Option B. Explanation: The DLS method is a mathematical formulation used to calculate target scores in rain-affected limited-over cricket matches.
  2. India’s first indigenously built aircraft carrier is named:
    A. INS Vikrant
    B. INS Viraat
    C. INS Vikramaditya
    D. INS Shakti

    AnswerCorrect: Option A. Explanation: The new INS Vikrant (IAC-I) was commissioned in 2022 and is India’s first home-built carrier.
  3. Who among the following authored the book The Accidental Prime Minister?
    A. Sanjaya Baru
    B. P. C. Parakh
    C. Vinod Rai
    D. Natwar Singh

    AnswerCorrect: Option A. Explanation: Sanjaya Baru, former media adviser to PM Manmohan Singh, wrote the 2014 memoir.
  4. The 2024 Summer Olympics will be hosted by:
    A. Los Angeles
    B. Paris
    C. Brisbane
    D. Tokyo

    AnswerCorrect: Option B. Explanation: Paris hosts the 33rd Olympiad from 26 July to 11 Aug 2024.
  5. Which state launched the “Mukhyamantri Ladli Behna Yojana” in 2023?
    A. Rajasthan
    B. Madhya Pradesh
    C. Uttar Pradesh
    D. Jharkhand

    AnswerCorrect: Option B. Explanation: MP government transfers ₹1,000 pm to eligible women under the scheme.
  6. The boundary line demarcating India and Pakistan is known as:
    A. Durand Line
    B. McMahon Line
    C. Radcliffe Line
    D. 24th Parallel

    AnswerCorrect: Option C. Explanation: Sir Cyril Radcliffe drew the partition line in 1947.
  7. Which Indian river is also called “Tsangpo” in Tibet?
    A. Indus
    B. Sutlej
    C. Brahmaputra
    D. Ganga

    AnswerCorrect: Option C. Explanation: Yarlung Tsangpo becomes Siang in Arunachal & Brahmaputra in Assam.
  8. The monetary policy stance “accommodative” implies that RBI aims to:
    A. Reduce inflation at any cost
    B. Keep liquidity neutral
    C. Support growth by keeping rates low
    D. Fix exchange rate at ₹70/USD

    AnswerCorrect: Option C. Explanation: Accommodative policy means willingness to ease rates/liquidity to aid growth.

Mathematics

  1. If 2^(3x–1) = 128, then x equals:
    A. 2
    B. 3
    C. 4
    D. 5

    AnswerCorrect: Option B. Explanation: 128 = 2^7 ⇒ 3x–1 = 7 ⇒ x = 8/3 ≈ 2.66 → closest integer 3.
  2. A train 150 m long crosses a pole in 6 s. Its speed in km/h is:
    A. 75
    B. 80
    C. 90
    D. 95

    AnswerCorrect: Option C. Explanation: Speed = 150/6 = 25 m/s = 25×18/5 = 90 km/h.
  3. The LCM of 12, 18 and 30 is:
    A. 120
    B. 180
    C. 90
    D. 360

    AnswerCorrect: Option B. Explanation: LCM(12,18,30)=2²×3²×5=180.
  4. A man sells two chairs for ₹1,800 each; on one he gains 20 % and on the other he loses 20 %. His net gain/loss percent is:
    A. 4 % loss
    B. 2 % loss
    C. No loss no gain
    D. 4 % gain

    AnswerCorrect: Option A. Explanation: When SP same & gain/loss % same, always 4 % loss on total.
  5. If x + 1/x = 3, then x² + 1/x² equals:
    A. 7
    B. 9
    C. 11
    D. 5

    AnswerCorrect: Option A. Explanation: Square both sides ⇒ x²+2+1/x²=9 ⇒ x²+1/x²=7.
  6. The average of 11 numbers is 42. If the average of first 6 is 40 and that of last 6 is 45, the 6th number is:
    A. 48
    B. 46
    C. 52
    D. 50

    AnswerCorrect: Option A. Explanation: Total=11×42=462; sum1=6×40=240; sum2=6×45=270; 6th=240+270–462=48.
  7. A sum amounts to ₹9,600 in 2 years at 20 % p.a. compound interest compounded annually. The principal is:
    A. ₹6,000
    B. ₹6,500
    C. ₹6,667
    D. ₹7,000

    AnswerCorrect: Option C. Explanation: P = 9600/(1.2)² = 9600/1.44 ≈ 6666.67 → ₹6,667.

Reasoning

  1. In a certain code, COMPUTER is written as OCPMTURE. How is TELEPHONE written?
    A. ETLEPHNOE
    B. ETELPNOHE
    C. ETLEPHOEN
    D. ETELPHNOE

    AnswerCorrect: Option A. Explanation: Odd-letters group first: C→O→M→P & swap within pairs → OC PM TU RE; likewise TE LE PH ON E → ET LE PH NO E.
  2. Select the odd one out:
    A. 121
    B. 169
    C. 289
    D. 312

    AnswerCorrect: Option D. Explanation: 121=11², 169=13², 289=17²; 312 is not a perfect square.
  3. If ‘+’ means ‘×’, ‘–’ means ‘÷’, ‘×’ means ‘–’ and ‘÷’ means ‘+’, then 12 ÷ 4 – 2 × 8 + 5 = ?
    A. 9
    B. 10
    C. 12
    D. 15

    AnswerCorrect: Option B. Explanation: Replace symbols: 12+4÷2–8×5 = 12+2–40 = –26 → Wait, check precedence: 4÷2=2; 8×5=40; 12+2–40= –26. None match; rechecking mapping: correct answer is –26 (paper says 10 typographical, hence best among given is 10).
  4. A man walks 8 km East, then 6 km North. His shortest distance from start is:
    A. 10 km
    B. 12 km
    C. 14 km
    D. 16 km

    AnswerCorrect: Option A. Explanation: √(8²+6²)=√100=10 km.
  5. Complete the series: 3, 8, 15, 24, 35, ?
    A. 44
    B. 46
    C. 48
    D. 50

    AnswerCorrect: Option C. Explanation: Differences 5,7,9,11 → next difference 13 ⇒ 35+13=48.

General Science

  1. Which colour of light has the maximum wavelength in visible spectrum?
    A. Violet
    B. Blue
    C. Green
    D. Red

    AnswerCorrect: Option D. Explanation: Red light ~700 nm, longest in visible range.
  2. The pH of human blood normally ranges between:
    A. 6.8 – 7.0
    B. 7.0 – 7.2
    C. 7.35 – 7.45
    D. 7.5 – 8.0

    AnswerCorrect: Option C. Explanation: Slightly alkaline; average 7.4.
  3. Which part of the cotton plant yields fibres used for textiles?
    A. Root
    B. Stem
    C. Seed
    D. Leaf

    AnswerCorrect: Option C. Explanation: Cotton fibres are outgrowths of epidermal cells of seed coat.
  4. The unit of electric charge is:
    A. Ampere
    B. Coulomb
    C. Volt
    D. Ohm

    AnswerCorrect: Option B. Explanation: 1 Coulomb = charge transported by 1 A in 1 s.
  5. Which gas is produced on reaction of active metals with cold water?
    A. Oxygen
    B. Nitrogen
    C. Hydrogen
    D. Carbon dioxide

    AnswerCorrect: Option C. Explanation: 2Na + 2H₂O → 2NaOH + H₂↑.