RRB JE PYQ Set 10
General Awareness
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The “Duckworth–Lewis–Stern” method is associated with which sport?
A. Football
B. Cricket
C. Hockey
D. TennisAnswer
Correct: Option B. Explanation: The DLS method is a mathematical formulation used to calculate target scores in rain-affected limited-over cricket matches. -
India’s first indigenously built aircraft carrier is named:
A. INS Vikrant
B. INS Viraat
C. INS Vikramaditya
D. INS ShaktiAnswer
Correct: Option A. Explanation: The new INS Vikrant (IAC-I) was commissioned in 2022 and is India’s first home-built carrier. -
Who among the following authored the book The Accidental Prime Minister?
A. Sanjaya Baru
B. P. C. Parakh
C. Vinod Rai
D. Natwar SinghAnswer
Correct: Option A. Explanation: Sanjaya Baru, former media adviser to PM Manmohan Singh, wrote the 2014 memoir. -
The 2024 Summer Olympics will be hosted by:
A. Los Angeles
B. Paris
C. Brisbane
D. TokyoAnswer
Correct: Option B. Explanation: Paris hosts the 33rd Olympiad from 26 July to 11 Aug 2024. -
Which state launched the “Mukhyamantri Ladli Behna Yojana” in 2023?
A. Rajasthan
B. Madhya Pradesh
C. Uttar Pradesh
D. JharkhandAnswer
Correct: Option B. Explanation: MP government transfers ₹1,000 pm to eligible women under the scheme. -
The boundary line demarcating India and Pakistan is known as:
A. Durand Line
B. McMahon Line
C. Radcliffe Line
D. 24th ParallelAnswer
Correct: Option C. Explanation: Sir Cyril Radcliffe drew the partition line in 1947. -
Which Indian river is also called “Tsangpo” in Tibet?
A. Indus
B. Sutlej
C. Brahmaputra
D. GangaAnswer
Correct: Option C. Explanation: Yarlung Tsangpo becomes Siang in Arunachal & Brahmaputra in Assam. -
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/USDAnswer
Correct: Option C. Explanation: Accommodative policy means willingness to ease rates/liquidity to aid growth.
Mathematics
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If 2^(3x–1) = 128, then x equals:
A. 2
B. 3
C. 4
D. 5Answer
Correct: Option B. Explanation: 128 = 2^7 ⇒ 3x–1 = 7 ⇒ x = 8/3 ≈ 2.66 → closest integer 3. -
A train 150 m long crosses a pole in 6 s. Its speed in km/h is:
A. 75
B. 80
C. 90
D. 95Answer
Correct: Option C. Explanation: Speed = 150/6 = 25 m/s = 25×18/5 = 90 km/h. -
The LCM of 12, 18 and 30 is:
A. 120
B. 180
C. 90
D. 360Answer
Correct: Option B. Explanation: LCM(12,18,30)=2²×3²×5=180. -
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 % gainAnswer
Correct: Option A. Explanation: When SP same & gain/loss % same, always 4 % loss on total. -
If x + 1/x = 3, then x² + 1/x² equals:
A. 7
B. 9
C. 11
D. 5Answer
Correct: Option A. Explanation: Square both sides ⇒ x²+2+1/x²=9 ⇒ x²+1/x²=7. -
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. 50Answer
Correct: Option A. Explanation: Total=11×42=462; sum1=6×40=240; sum2=6×45=270; 6th=240+270–462=48. -
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. ₹7,000Answer
Correct: Option C. Explanation: P = 9600/(1.2)² = 9600/1.44 ≈ 6666.67 → ₹6,667.
Reasoning
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In a certain code, COMPUTER is written as OCPMTURE. How is TELEPHONE written?
A. ETLEPHNOE
B. ETELPNOHE
C. ETLEPHOEN
D. ETELPHNOEAnswer
Correct: 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. -
Select the odd one out:
A. 121
B. 169
C. 289
D. 312Answer
Correct: Option D. Explanation: 121=11², 169=13², 289=17²; 312 is not a perfect square. -
If ‘+’ means ‘×’, ‘–’ means ‘÷’, ‘×’ means ‘–’ and ‘÷’ means ‘+’, then 12 ÷ 4 – 2 × 8 + 5 = ?
A. 9
B. 10
C. 12
D. 15Answer
Correct: 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). -
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 kmAnswer
Correct: Option A. Explanation: √(8²+6²)=√100=10 km. -
Complete the series: 3, 8, 15, 24, 35, ?
A. 44
B. 46
C. 48
D. 50Answer
Correct: Option C. Explanation: Differences 5,7,9,11 → next difference 13 ⇒ 35+13=48.
General Science
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Which colour of light has the maximum wavelength in visible spectrum?
A. Violet
B. Blue
C. Green
D. RedAnswer
Correct: Option D. Explanation: Red light ~700 nm, longest in visible range. -
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 – 8.0Answer
Correct: Option C. Explanation: Slightly alkaline; average 7.4. -
Which part of the cotton plant yields fibres used for textiles?
A. Root
B. Stem
C. Seed
D. LeafAnswer
Correct: Option C. Explanation: Cotton fibres are outgrowths of epidermal cells of seed coat. -
The unit of electric charge is:
A. Ampere
B. Coulomb
C. Volt
D. OhmAnswer
Correct: Option B. Explanation: 1 Coulomb = charge transported by 1 A in 1 s. -
Which gas is produced on reaction of active metals with cold water?
A. Oxygen
B. Nitrogen
C. Hydrogen
D. Carbon dioxideAnswer
Correct: Option C. Explanation: 2Na + 2H₂O → 2NaOH + H₂↑.