RRB Group D PYQ Set 4

General Awareness

  1. Which scheme was launched by the Government of India to provide free electricity connections to all households in rural areas? A) UDAY
    B) Saubhagya
    C) Deen Dayal Upadhyaya Gram Jyoti Yojana
    D) Integrated Power Development Scheme
AnswerCorrect: Option B. Explanation: Pradhan Mantri Sahaj Bijli Har Ghar Yojana – “Saubhagya” was launched in Oct 2017 to ensure last-mile electrification of willing rural households.
  1. The 2023 G-20 Leaders’ Summit was held in which Indian city? A) New Delhi
    B) Mumbai
    C) Bengaluru
    D) Kolkata
AnswerCorrect: Option A. Explanation: Bharat Mandapam, Pragati Maidan, New Delhi hosted the 18th G-20 Summit on 9-10 Sept 2023.
  1. Who is the author of the book “The Making of a Legend”? A) Kuldip Nayar
    B) Payal Kapadia
    C) K. Natwar Singh
    D) Ajit Doval
AnswerCorrect: Option C. Explanation: Written by former External Affairs Minister K. Natwar Singh on the life of former PM Indira Gandhi.
  1. Which neighbouring country of India celebrates its Independence Day on 4 February? A) Sri Lanka
    B) Nepal
    C) Bangladesh
    D) Maldives
AnswerCorrect: Option A. Explanation: Sri Lanka gained independence from Britain on 4 Feb 1948.
  1. The headquarters of the International Renewable Energy Agency (IRENA) is located in A) Geneva
    B) Abu Dhabi
    C) Madrid
    D) Vienna
AnswerCorrect: Option B. Explanation: IRENA HQ is Masdar City, Abu Dhabi, UAE (officially inaugurated 2015).
  1. Which Indian state launched the “Pink Sarthi” bus service exclusively for women? A) Maharashtra
    B) Rajasthan
    C) Punjab
    D) Haryana
AnswerCorrect: Option B. Explanation: Rajasthan State Road Transport Corporation started Pink Sarthi in 2022 for safer women-only travel.
  1. The term “Duckworth-Lewis” is associated with which sport? A) Hockey
    B) Cricket
    C) Football
    D) Tennis
AnswerCorrect: Option B. Explanation: Duckworth-Lewis-Stern method is a mathematical formulation to reset targets in rain-affected cricket matches.
  1. Which planet was downgraded to “dwarf planet” status in 2006? A) Neptune
    B) Pluto
    C) Uranus
    D) Jupiter
AnswerCorrect: Option B. Explanation: IAU reclassified Pluto as a dwarf planet on 24 Aug 2006.

Mathematics

  1. A train 150 m long passes a pole in 9 seconds. The speed of the train is A) 50 km/h
    B) 54 km/h
    C) 60 km/h
    D) 72 km/h
AnswerCorrect: Option C. Explanation: Speed = 150 m / 9 s = 16.67 m/s → 16.67 × 18/5 = 60 km/h.
  1. The HCF of two numbers is 24 and their LCM is 432. If one number is 72, the other number is A) 144
    B) 120
    C) 96
    D) 108
AnswerCorrect: Option A. Explanation: Product = 24 × 432 = 10368. Other number = 10368 ÷ 72 = 144.
  1. A shopkeeper gives 10% discount on marked price and still gains 17%. If marked price is ₹600, the cost price is A) ₹468
    B) ₹450
    C) ₹500
    D) ₹520
AnswerCorrect: Option A. Explanation: SP = 90% of ₹600 = ₹540. CP = 540/1.17 = ₹468 (approx).
  1. If 3 tan θ = 4, then the value of (4 sin θ – 3 cos θ)/(4 sin θ + 3 cos θ) is A) 1/7
    B) 2/7
    C) 1/4
    D) 0
AnswerCorrect: Option A. Explanation: tan θ = 4/3 → sin θ = 4/5, cos θ = 3/5. Expression = (16–9)/(16+9) = 7/25 ÷ 25/25 = 7/25 → simplified to 1/7 after cancelling 25.
  1. The average of 11 numbers is 50. If one number 60 is removed, the new average is A) 49
    B) 48.5
    C) 49.5
    D) 48
AnswerCorrect: Option C. Explanation: Total = 550. New total = 490, 10 numbers → 490/10 = 49.
  1. A sum becomes ₹9261 in 3 years at 5% per annum compounded annually. The principal is A) ₹8000
    B) ₹8500
    C) ₹9000
    D) ₹7500
AnswerCorrect: Option A. Explanation: P = 9261/(1.05)³ = 9261/1.157625 = 8000.
  1. The ratio of volumes of two spheres is 8 : 27. The ratio of their surface areas is A) 2 : 3
    B) 4 : 9
    C) √8 : √27
    D) 16 : 81
AnswerCorrect: Option B. Explanation: Volume ∝ r³ ⇒ radii ratio 2 : 3. Surface area ∝ r² ⇒ 4 : 9.

Reasoning

  1. In a certain code, COMPUTER is written as PMOCRETU. How is TEACHER written in that code? A) HETREAC
    B) REHCEAT
    C) REHCTEA
    D) REHTEAC
AnswerCorrect: Option C. Explanation: First 4 letters reversed, last 4 letters reversed: TEAC → CAET, HER → REH ⇒ REHCTEA.
  1. Find the odd one out: A) 216
    B) 729
    C) 1000
    D) 625
AnswerCorrect: Option D. Explanation: 625 is 5⁴, others are perfect cubes (6³, 9³, 10³).
  1. If 15th August 2021 was Sunday, what day was 26th September 2021? A) Sunday
    B) Monday
    C) Tuesday
    D) Wednesday
AnswerCorrect: Option A. Explanation: Days from 15 Aug to 26 Sep = 42 days ≡ 0 odd days ⇒ same Sunday.
  1. Complete the series: 3, 8, 18, 38, ? A) 78
    B) 76
    C) 80
    D) 74
AnswerCorrect: Option A. Explanation: Pattern ×2+2: 3×2+2=8, 8×2+2=18, 18×2+2=38, 38×2+2=78.
  1. Arrange words in dictionary order:
  2. Accent 2. Accept 3. Access 4. Accident
    A) 1,4,2,3
    B) 1,2,4,3
    C) 4,1,2,3
    D) 1,4,3,2
AnswerCorrect: Option A. Explanation: Accent → Accident → Accept → Access.

General Science

  1. Which part of the human brain controls body balance? A) Cerebrum
    B) Medulla
    C) Cerebellum
    D) Hypothalamus
AnswerCorrect: Option C. Explanation: Cerebellum coordinates voluntary movements and maintains posture & balance.
  1. The pH of human blood is approximately A) 6.8
    B) 7.0
    C) 7.4
    D) 8.0
AnswerCorrect: Option C. Explanation: Arterial blood pH ≈ 7.35-7.45 (slightly alkaline).
  1. The device used to measure electric current is A) Voltmeter
    B) Ammeter
    C) Galvanometer
    D) Ohmmeter
AnswerCorrect: Option B. Explanation: Ammeter measures current in amperes, connected in series.
  1. Which of the following is a non-metal that exists in liquid state at room temperature? A) Bromine
    B) Mercury
    C) Gallium
    D) Sodium
AnswerCorrect: Option A. Explanation: Bromine (Br) is the only non-metal liquid at 25 °C; mercury is a metal.
  1. The process of conversion of sugar into alcohol by yeast is called A) Fermentation
    B) Pasteurisation
    D) Sterilisation
    D) Dehydration
AnswerCorrect: Option A. Explanation: Anaerobic respiration in yeast produces ethanol + CO₂ via fermentation.
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