RRB Group D Previous Year Questions Set 4
General Awareness
- 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
Show Answer
Correct: 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.
- The 2023 G-20 Leaders’ Summit was held in which Indian city?
- A) New Delhi
- B) Mumbai
- C) Bengaluru
- D) Kolkata
Show Answer
Correct: Option A. Explanation: Bharat Mandapam, Pragati Maidan, New Delhi hosted the 18th G-20 Summit on 9-10 Sept 2023.
- 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
Show Answer
Correct: Option C. Explanation: Written by former External Affairs Minister K. Natwar Singh on the life of former PM Indira Gandhi.
- Which neighbouring country of India celebrates its Independence Day on 4 February?
- A) Sri Lanka
- B) Nepal
- C) Bangladesh
- D) Maldives
Show Answer
Correct: Option A. Explanation: Sri Lanka gained independence from Britain on 4 Feb 1948.
- The headquarters of the International Renewable Energy Agency (IRENA) is located in
- A) Geneva
- B) Abu Dhabi
- C) Madrid
- D) Vienna
Show Answer
Correct: Option B. Explanation: IRENA HQ is Masdar City, Abu Dhabi, UAE (officially inaugurated 2015).
- Which Indian state launched the “Pink Sarthi” bus service exclusively for women?
- A) Maharashtra
- B) Rajasthan
- C) Punjab
- D) Haryana
Show Answer
Correct: Option B. Explanation: Rajasthan State Road Transport Corporation started Pink Sarthi in 2022 for safer women-only travel.
- The term “Duckworth-Lewis” is associated with which sport?
- A) Hockey
- B) Cricket
- C) Football
- D) Tennis
Show Answer
Correct: Option B. Explanation: Duckworth-Lewis-Stern method is a mathematical formulation to reset targets in rain-affected cricket matches.
- Which planet was downgraded to “dwarf planet” status in 2006?
- A) Neptune
- B) Pluto
- C) Uranus
- D) Jupiter
Show Answer
Correct: Option B. Explanation: IAU reclassified Pluto as a dwarf planet on 24 Aug 2006.
Mathematics
- 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
Show Answer
Correct: Option C. Explanation: Speed = 150 m / 9 s = 16.67 m/s → 16.67 × 18/5 = 60 km/h.
- 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
Show Answer
Correct: Option A. Explanation: Product = 24 × 432 = 10368. Other number = 10368 ÷ 72 = 144.
- 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
Show Answer
Correct: Option A. Explanation: SP = 90% of ₹600 = ₹540. CP = 540/1.17 = ₹468 (approx).
- 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
Show Answer
Correct: 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.
- 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
Show Answer
Correct: Option C. Explanation: Total = 550. New total = 490, 10 numbers → 490/10 = 49.
- A sum becomes ₹9261 in 3 years at 5% per annum compounded annually. The principal is
- A) ₹8000
- B) ₹8500
- C) ₹9000
- D) ₹7500
Show Answer
Correct: Option A. Explanation: P = 9261/(1.05)³ = 9261/1.157625 = 8000.
- 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
Show Answer
Correct: Option B. Explanation: Volume ∝ r³ ⇒ radii ratio 2 : 3. Surface area ∝ r² ⇒ 4 : 9.
Reasoning
- In a certain code, COMPUTER is written as PMOCRETU. How is TEACHER written in that code?
- A) HETREAC
- B) REHCEAT
- C) REHCTEA
- D) REHTEAC
Show Answer
Correct: Option C. Explanation: First 4 letters reversed, last 4 letters reversed: TEAC → CAET, HER → REH ⇒ REHCTEA.
- Find the odd one out:
- A) 216
- B) 729
- C) 1000
- D) 625
Show Answer
Correct: Option D. Explanation: 625 is 5⁴, others are perfect cubes (6³, 9³, 10³).
- If 15th August 2021 was Sunday, what day was 26th September 2021?
- A) Sunday
- B) Monday
- C) Tuesday
- D) Wednesday
Show Answer
Correct: Option A. Explanation: Days from 15 Aug to 26 Sep = 42 days ≡ 0 odd days ⇒ same Sunday.
- Complete the series: 3, 8, 18, 38, ?
Show Answer
Correct: Option A. Explanation: Pattern ×2+2: 3×2+2=8, 8×2+2=18, 18×2+2=38, 38×2+2=78.
- Arrange words in dictionary order:
- 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
Show Answer
Correct: Option A. Explanation: Accent → Accident → Accept → Access.
General Science
- Which part of the human brain controls body balance?
- A) Cerebrum
- B) Medulla
- C) Cerebellum
- D) Hypothalamus
Show Answer
Correct: Option C. Explanation: Cerebellum coordinates voluntary movements and maintains posture & balance.
- The pH of human blood is approximately
- A) 6.8
- B) 7.0
- C) 7.4
- D) 8.0
Show Answer
Correct: Option C. Explanation: Arterial blood pH ≈ 7.35-7.45 (slightly alkaline).
- The device used to measure electric current is
- A) Voltmeter
- B) Ammeter
- C) Galvanometer
- D) Ohmmeter
Show Answer
Correct: Option B. Explanation: Ammeter measures current in amperes, connected in series.
- Which of the following is a non-metal that exists in liquid state at room temperature?
- A) Bromine
- B) Mercury
- C) Gallium
- D) Sodium
Show Answer
Correct: Option A. Explanation: Bromine (Br) is the only non-metal liquid at 25 °C; mercury is a metal.
- The process of conversion of sugar into alcohol by yeast is called
- A) Fermentation
- B) Pasteurisation
- D) Sterilisation
- D) Dehydration
Show Answer
Correct: Option A. Explanation: Anaerobic respiration in yeast produces ethanol + CO₂ via fermentation.
BETA
