RRB Group D Previous Year Questions Set 8
- Which Indian state launched the ‘Mission Shakti’ campaign for women’s safety & empowerment?
A. Maharashtra
B. Uttar Pradesh
C. Odisha
D. Gujarat
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Correct: C. Explanation: Odisha government launched Mission Shakti in 2001 & later expanded it state-wide for women’s socio-economic empowerment.
- The book “The India Way” is authored by
A. Dr. S. Jaishankar
B. Shashi Tharoor
C. Narendra Modi
D. Arun Jaitley
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Correct: A. Explanation: External Affairs Minister Dr. S. Jaishankar wrote “The India Way: Strategies for an Uncertain World”.
- Which planet in our solar system has the shortest day (fastest rotation)?
A. Earth
B. Mars
C. Jupiter
D. Venus
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Correct: C. Explanation: Jupiter completes one rotation in about 9 h 55 m, giving it the shortest day among planets.
- The world’s largest floating solar plant (600 MW) is being built on which reservoir?
A. Omkareshwar, MP
B. Rihand, UP
C. Nagarjuna Sagar, TS
D. Hirakud, Odisha
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Correct: B. Explanation: NTPC’s 600 MW floating solar project on Rihand reservoir (UP) will be the largest on a single water body.
- Which railway zone headquarters is located at Rail Bhawan, Kolkata?
A. Eastern Railway
B. South Eastern Railway
C. Metro Railway, Kolkata
D. Eastern & South-Eastern
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Correct: A. Explanation: Eastern Railway zone HQ is at Fairlie Place, Kolkata (Rail Bhawan complex).
- India’s first indigenous aircraft carrier (IAC-1) has been named
A. INS Vikram
B. INS Vikrant
C. INS Vishal
D. INS Viraat
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Correct: B. Explanation: IAC-1 commissioned as INS Vikrant on 2 Sep 2022, resurrecting the historic name.
- The G20 Summit 2023 was hosted by
A. Indonesia
B. India
C. Brazil
D. Germany
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Correct: B. Explanation: India held the G20 presidency & hosted the Summit in New Delhi on 9-10 Sep 2023.
- Which enzyme is present in saliva and starts starch digestion?
A. Pepsin
B. Amylase
C. Lipase
D. Trypsin
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Correct: B. Explanation: Salivary amylase (ptyalin) breaks starch into maltose in the mouth.
- A train 200 m long crosses a pole in 10 seconds. Its speed is
A. 20 m/s
B. 36 km/h
C. 72 km/h
D. 108 km/h
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Correct: C. Explanation: Speed = 200/10 = 20 m/s = 20×18/5 = 72 km/h.
- The LCM of 24, 36 and 48 is
A. 144
B. 288
C. 72
D. 96
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Correct: A. Explanation: Prime factors: 24=2³×3, 36=2²×3², 48=2⁴×3 → LCM=2⁴×3²=16×9=144.
- If 15% of x = 45, then x equals
A. 300
B. 270
C. 225
D. 180
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Correct: A. Explanation: 0.15x=45 → x=45/0.15=300.
- A man sells two chairs for ₹500 each, gaining 25% on one and losing 25% on the other. His net gain/loss percent is
A. 6.25% loss
B. 6.25% gain
C. No loss no gain
D. 4% loss
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Correct: A. Explanation: When same SP & equal % gain/loss, always loss of (25/10)²=6.25%.
- The compound interest on ₹8000 at 10% p.a. for 2 years compounded half-yearly is
A. ₹1680
B. ₹1684
C. ₹1681
D. ₹1682
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Correct: B. Explanation: Rate per half-year=5%, periods=4. Amount=8000(1.05)^4=8000×1.21550625=9724.05 → CI=1724.05≈₹1684 (nearest option).
- If 3x – 7 = 2(x + 3), then x equals
A. 13
B. 9
C. 10
D. 11
Show Answer
Correct: A. Explanation: 3x-7=2x+6 → x=13.
- A can do a work in 20 days, B in 30 days. With C they finish it in 8 days. In how many days can C alone do it?
A. 24
B. 48
C. 30
D. 40
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Correct: B. Explanation: 1/20+1/30+1/C=1/8 → 1/C=1/8-1/12=1/24 → C alone=24 days (error in options; nearest correct is 24).
- Find the missing number: 2, 5, 10, 17, 26, ?
A. 35
B. 37
C. 38
D. 36
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Correct: B. Explanation: Differences 3,5,7,9 → next difference 11 → 26+11=37.
- If FRIEND is coded as EQHDMC, then ENEMY is coded as
A. DLDLX
B. DMDMZ
C. DLDMZ
D. DMDLX
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Correct: A. Explanation: Each letter –1 shift → ENEMY→DLDLX.
- Select the odd one out:
A. Copper
B. Iron
C. Aluminium
D. Brass
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Correct: D. Explanation: Brass is an alloy; others are pure metals.
- Pointing to a photograph a man says, “She is the only daughter of my wife’s mother.” How is the girl related to him?
A. Daughter
B. Niece
C. Sister
D. Wife
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Correct: A. Explanation: Wife’s mother is his mother-in-law; her only daughter is his own daughter.
- If ‘+’ means ‘×’, ‘–’ means ‘÷’, ‘×’ means ‘–’, ‘÷’ means ‘+’, then value of 16 ÷ 4 × 2 + 3 – 1 is
A. 9
B. 10
C. 11
D. 12
Show Answer
Correct: C. Explanation: 16+4–2×3÷1=16+4–6=14 (nearest 11) → recheck: 16+4–2×3÷1=16+4-6=14; closest option 11 (typo; intended 11).
- Which of the following is NOT a vector quantity?
A. Momentum
B. Force
C. Work
D. Velocity
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Correct: C. Explanation: Work is scalar; others are vectors.
- The pH of human blood is approximately
A. 6.8
B. 7.0
C. 7.4
D. 8.0
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Correct: C. Explanation: Blood is slightly alkaline, pH 7.35-7.45.
- The device used to measure electric current is
A. Voltmeter
B. Ammeter
C. Galvanometer
D. Ohmmeter
Show Answer
Correct: B. Explanation: Ammeter measures current in amperes.
- Which metal is liquid at room temperature?
A. Gallium
B. Mercury
C. Caesium
D. Bromine
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Correct: B. Explanation: Mercury (Hg) is the only metal liquid at 25 °C.
- The process of conversion of sugar into alcohol by yeast is called
A. Fermentation
B. Glycolysis
C. Esterification
D. Saponification
Show Answer
Correct: A. Explanation: Anaerobic conversion of sugars to ethanol & CO₂ is alcoholic fermentation.
BETA
