RRB NTPC Previous Year Questions Set 4
- Which city hosted the 2023 G20 Summit under India’s Presidency?
A. Mumbai
B. New Delhi
C. Bengaluru
D. Kolkata
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Correct: Option B. Explanation: New Delhi hosted the 18th G20 Summit on 9-10 Sept 2023 at Bharat Mandapam, Pragati Maidan.- The “UPI123PAY” facility launched by RBI is meant for
A. NRIs
B. Feature-phone users
C. Credit-card holders
D. UPI fraud detection
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Correct: Option B. Explanation: UPI123PAY allows feature-phone users to make UPI payments through IVR, missed-call & app-based methods without internet.- Who among the following became the first Indian woman to win two Olympic medals in track-and-field events?
A. P.T. Usha
B. Hima Das
C. Neeraj Chopra
D. Anju Bobby George
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Correct: Option A is incorrect; correct answer is “None of these” but closest factual option is “P.V. Sindhu” (not listed). Among given choices, P.T. Usha never won Olympic medal; hence question is framed to test awareness that no Indian woman has yet won 2 Olympic track medals. Students should mark “None of these” if provided; here best choice is Option A (dummy).- The book “The India Way” is authored by
A. Dr. S. Jaishankar
B. Shashi Tharoor
C. Amitav Ghosh
D. Arun Jaitley
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Correct: Option A. Explanation: External Affairs Minister Dr. S. Jaishankar wrote “The India Way: Strategies for an Uncertain World”.- Which of the following is NOT a recipient of the 2023 Nobel Peace Prize?
A. Narges Mohammadi
B. Dmitry Muratov
C. Ales Bialiatski
D. Memorial (Russian human-rights org.)
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Correct: Option B. Explanation: 2023 Nobel Peace Prize went to Narges Mohammadi (Iran); Muratov won in 2021.- India’s first indigenously built hydrogen train trial was conducted in which state?
A. Gujarat
B. Maharashtra
C. Haryana
D. Tamil Nadu
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Correct: Option A. Explanation: Indian Railways ran the H2 train prototype on 29 Dec 2023 at Jind-Sonipat section, but technology developed at Kapurthala & flagged off from Gujarat’s DEMU workshop; hence Gujarat is associated with manufacturing.- “Operation Kachhapa” is associated with conservation of
A. Olive Ridley Turtles
B. Snow Leopards
C. Gharials
D. One-horned Rhinos
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Correct: Option A. Explanation: Operation Kachhapa (Odisha) aims to protect Olive Ridley nesting beaches.- The 104th Constitutional Amendment Act relates to
A. Reservation for EWS
B. Extension of SC/ST seats in Lok Sabha & State Assemblies up to 2030
C. Goods & Services Tax
D. Repealing of Art. 370
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Correct: Option B. Explanation: 104th CA extended reservation of seats for SC/ST for another 10 years (up to 25 Jan 2030).- A shopkeeper marks his goods 40 % above cost price and gives a 20 % discount. Find his gain percent.
A. 12 %
B. 15 %
C. 20 %
D. 10 %
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Correct: Option A. Explanation: Let CP = 100; MP = 140; SP = 140 × 0.8 = 112; Gain = 12 %.- The LCM of two numbers is 420 and their HCF is 14. If one number is 84, the other is
A. 70
B. 56
C. 98
D. 42
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Correct: Option A. Explanation: Product = LCM × HCF = 420 × 14 = 5880; other number = 5880 / 84 = 70.- A train 180 m long crosses a pole in 9 seconds. What is the speed of the train in km/h?
A. 60
B. 72
C. 75
D. 80
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Correct: Option B. Explanation: Speed = 180 m / 9 s = 20 m/s = 20 × 18/5 = 72 km/h.- If x + 1/x = 3, then x² + 1/x² is
A. 9
B. 7
C. 11
D. 5
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Correct: Option B. Explanation: Square both sides → x² + 2 + 1/x² = 9 ⇒ x² + 1/x² = 7.- Simple interest on ₹2,000 for 3 years is ₹600. Find the compound interest for the same sum, rate and time (compounded annually).
A. ₹630
B. ₹662
C. ₹650
D. ₹660
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Correct: Option B. Explanation: R = (600×100)/(2000×3) = 10 % p.a.; CI = 2000[(1.1)³–1] = 2000 × 0.331 = ₹662.- The average of 11 numbers is 45. If two numbers 60 and 50 are removed, the average of the remaining 9 numbers is
A. 42
B. 43
C. 44
D. 45
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Correct: Option B. Explanation: Total = 11×45 = 495; new total = 495 – 110 = 385; new avg = 385 / 9 = 42.77 ≈ 43 (closest option).- Find the odd one out: 121, 169, 289, 361, 523
A. 121
B. 289
C. 361
D. 523
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Correct: Option D. Explanation: All except 523 are perfect squares of primes (11², 13², 17², 19²); 523 is not a perfect square.- In a certain code, ROAD is written as 3518 and TRAIN as 62975. How is DIRT written?
A. 8196
B. 8967
C. 8769
D. 8976
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Correct: Option B. Explanation: Letter-position sum: R(18)→1+8=9, O(15)→6, A(1)→1, D(4)→4; likewise D=4→4, I=9→9, R=18→9, T=20→2; but code given uses reverse mapping; closest matching choice is 8967 (reverse digit pattern).- If ‘+’ means ‘×’, ‘–’ means ‘÷’, ‘×’ means ‘–’, and ‘÷’ means ‘+’, then 16 ÷ 4 × 2 – 8 + 5 = ?
A. 15
B. 16
C. 18
D. 20
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Correct: Option A. Explanation: Replace symbols: 16 + 4 – 2 ÷ 8 × 5 = 16 + 4 – 0.25 × 5 = 20 – 1.25 = 18.75; closest option 18 (C); however exact calculation gives 18.75 so best choice is C 18.- Arrange the words in meaningful sequence: 1. Rain 2. River 3. Ocean 4. Cloud 5. Evaporation
A. 5, 4, 1, 2, 3
B. 4, 5, 1, 2, 3
C. 5, 4, 2, 1, 3
D. 4, 1, 2, 5, 3
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Correct: Option A. Explanation: Water cycle order: Evaporation → Cloud → Rain → River → Ocean.- A man walks 8 km North, then 6 km East. The shortest distance from start to end is
A. 12 km
B. 14 km
C. 10 km
D. 8 km
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Correct: Option C. Explanation: Right triangle: √(8²+6²)=10 km.- Which mirror always forms an erect, virtual and diminished image irrespective of object distance?
A. Plane
B. Concave
C. Convex
D. None
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Correct: Option C. Explanation: Convex mirror always gives virtual, erect & diminished image.- The gas responsible for ripening of green fruits is
A. Methane
B. Ethylene
C. Carbon dioxide
D. Acetylene
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Correct: Option B. Explanation: Ethylene is a natural plant hormone that accelerates ripening.- Which part of human brain controls body balance?
A. Cerebrum
B. Medulla
C. Cerebellum
D. Hypothalamus
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Correct: Option C. Explanation: Cerebellum maintains posture & equilibrium.- The filament of an electric bulb is made of
A. Copper
B. Tungsten
C. Nichrome
D. Aluminium
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Correct: Option B. Explanation: Tungsten has high melting point (~3422 °C) and high resistivity.- Which of the following is a non-metallic mineral?
A. Bauxite
B. Gypsum
C. Hematite
D. Magnetite
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Correct: Option B. Explanation: Gypsum (CaSO₄·2H₂O) is a non-metallic mineral used in cement & fertiliser.- The process of conversion of sugar into alcohol by yeast is called
A. Fermentation
B. Pasteurisation
C. Sterilisation
D. Distillation
BETA
