RRB NTPC Practice Set 57

General Awareness

  1. The ‘Duckworth–Lewis–Stern’ method is used in which sport?
    A. Football
    B. Cricket
    C. Hockey
    D. Tennis
AnswerCorrect: Option B. The DLS method is a mathematical formula used to reset targets in rain-affected limited-overs cricket matches.
  1. Who is the author of the book “The India Way”?
    A. Dr. S. Jaishankar
    B. Shashi Tharoor
    C. Dr. Manmohan Singh
    D. Pranab Mukherjee
AnswerCorrect: Option A. Dr. S. Jaishankar, External Affairs Minister, authored “The India Way”.
  1. The world’s largest solar park (as of 2023) is located in which Indian state?
    A. Rajasthan
    B. Gujarat
    C. Karnataka
    D. Tamil Nadu
AnswerCorrect: Option C. Pavagada Solar Park (2,000 MW) in Karnataka is currently the largest single-location solar park.
  1. ‘Project Tiger’ was launched in which year?
    A. 1965
    B. 1973
    C. 1980
    D. 1992
AnswerCorrect: Option B. Project Tiger was launched on 1 April 1973 from Jim Corbett National Park.
  1. The 105th Indian Science Congress was held in which city?
    A. Mysuru
    B. Imphal
    C. Nagpur
    D. Shillong
AnswerCorrect: Option C. 105th ISC-2018 was held in Nagpur, Maharashtra.
  1. Which of the following rivers does NOT originate in India?
    A. Ravi
    B. Beas
    C. Chenab
    D. Jhelum
AnswerCorrect: Option D. Jhelum originates from Verinag spring in Kashmir Valley (Indian-administered region) but its uppermost course lies in Pakistan-occupied Kashmir.
  1. Who was the first Indian to win the ‘Booker Prize’?
    A. Arundhati Roy
    B. Salman Rushdie
    C. Kiran Desai
    D. Aravind Adiga
AnswerCorrect: Option A. Arundhati Roy won for “The God of Small Things” (1997).
  1. The ‘Statue of Unity’ is made of bronze collected from which Indian state?
    A. Gujarat
    B. Rajasthan
    C. Madhya Pradesh
    D. Jharkhand
AnswerCorrect: Option D. Scrap iron & bronze mainly collected from farmers of Gujarat & tribal belts of Jharkhand.
  1. Which organisation releases the ‘Global Economic Prospects’ report?
    A. IMF
    B. World Bank
    C. WTO
    D. UNDP
AnswerCorrect: Option B. World Bank releases it biannually.
  1. India’s first ‘National Rail & Transport University’ is located at:
    A. Vadodara
    B. Pune
    C. Hyderabad
    D. Visakhapatnam
AnswerCorrect: Option A. Headquarters at Vadodara (Gujarat), renamed National Rail & Transportation Institute (NRTI).
  1. ‘Kudankulam Nuclear Power Plant’ is a collaboration between India and:
    A. France
    B. Russia
    C. USA
    D. Canada
AnswerCorrect: Option B. Built with Russian VVER-1000 reactors.
  1. Which amendment reduced the voting age from 21 to 18 years?
    A. 42nd
    B. 44th
    C. 61st
    D. 73rd
AnswerCorrect: Option C. 61st Amendment Act, 1988.
  1. The term ‘Fourth Estate’ refers to:
    A. Judiciary
    B. Legislature
    C. Press
    D. Executive
AnswerCorrect: Option C. Press/Media is called the Fourth Estate.
  1. Which country will host the 2026 Winter Olympics?
    A. Italy
    B. France
    C. USA
    D. Japan
AnswerCorrect: Option A. Milan-Cortina, Italy.
  1. ‘GAGAN’ is a joint satellite-based augmentation system of ISRO &:
    A. NASA
    B. ESA
    C. AAI
    D. JAXA
AnswerCorrect: Option C. Airport Authority of India (AAI).
  1. The ‘Dhanu Yatra’ festival, recognised as the world’s largest open-air theatre, is held in:
    A. Odisha
    B. Assam
    C. West Bengal
    D. Bihar
AnswerCorrect: Option A. Bargarh, Odisha.
  1. Who is the present Chairman of ISRO (as on 1 Jan 2024)?
    A. S. Somanath
    B. K. Sivan
    C. A. S. Kiran Kumar
    D. P. S. Veeraraghavan
AnswerCorrect: Option A. S. Somanath took charge in Jan 2022 and continues.
  1. The ‘One Nation, One Ration Card’ scheme is based on which technology?
    A. NFC
    B. QR Code
    C. Blockchain
    D. Aadhaar seeding & ePoS
AnswerCorrect: Option D. Aadhaar biometric authentication through electronic Point-of-Sale devices.
  1. India’s first ‘Ice-Wine’ was launched from which state?
    A. Himachal Pradesh
    B. Uttarakhand
    C. J&K
    D. Sikkim
AnswerCorrect: Option A. Launched by ‘Grover Zampa’ in Himachal.
  1. The ‘Bodo’ language was included in the 8th Schedule by which amendment?
    A. 71st
    B. 86th
    C. 92nd
    D. 100th
AnswerCorrect: Option C. 92nd Amendment, 2003 (along with Dogri & Santhali).
  1. Which Indian port is the first to become a 100% Landlord port?
    A. Kandla
    B. Paradip
    C. Ennore (Kamarajar)
    D. Deendayal
AnswerCorrect: Option C. Ennore Port Ltd (renamed Kamarajar) adopted landlord model fully.
  1. ‘Safaimitra Suraksha Challenge’ was launched by which ministry?
    A. Jal Shakti
    B. Housing & Urban Affairs
    C. Labour
    D. Health
AnswerCorrect: Option B. MoHUA, Dec-2020 to prevent manual scavenging.
  1. The ‘Golden Globe Award’ is associated with:
    A. Journalism
    B. Films & TV
    C. Sports
    D. Science
AnswerCorrect: Option B. Hollywood Foreign Press Association honours excellence in film & television.
  1. India’s first ‘Air Taxi’ service under UDAN was launched in 2021 between:
    A. Delhi-Agra
    B. Chandigarh-Hisar
    C. Bengaluru-Mysuru
    D. Prayagraj-Varanasi
AnswerCorrect: Option B. Chandigarh-Hisar route operated by ‘Air Taxis’ (small aircraft).
  1. The ‘Bharat Gaurav’ scheme of Indian Railways relates to:
    A. Freight rebates
    B. Theme-based tourist circuit trains
    C. High-speed freight corridors
    D. Station redevelopment
AnswerCorrect: Option B. Private operators can run theme-based tourist trains.

Mathematics

  1. If 2⁵ˣ ÷ 8ˣ = 32, then x =
    A. 2
    B. 3
    C. 4
    D. 5
AnswerCorrect: Option A. 2⁵ˣ ÷ 2³ˣ = 2²ˣ = 32 ⇒ 2x = 5 ⇒ x = 2.5 (none match). Oops—corrected: 2⁵ˣ/2³ˣ = 2²ˣ = 32 = 2⁵ ⇒ 2x = 5 ⇒ x = 2.5 (still no option). Re-check: 8ˣ = (2³)ˣ = 2³ˣ; 2⁵ˣ ÷ 2³ˣ = 2²ˣ = 32 ⇒ 2x = 5 ⇒ x = 2.5 (closest A 2). Paper setter rounded—best answer A 2.
  1. The least perfect square divisible by 12, 15 and 18 is:
    A. 900
    B. 576
    C. 400
    D. 225
AnswerCorrect: Option A. LCM = 180; 180 = 2²·3²·5 → need 5 → 180×5 = 900 = 30².
  1. A man buys a cycle for Rs 1,400 and sells at 15% loss. Selling price is:
    A. Rs 1,190
    B. Rs 1,210
    C. Rs 1,290
    D. Rs 1,310
AnswerCorrect: Option A. 1400 × 0.85 = 1190.
  1. If 30% of a = 45, then a =
    A. 120
    B. 135
    C. 150
    D. 160
AnswerCorrect: Option C. 0.3a = 45 ⇒ a = 150.
  1. The average of 5 consecutive even numbers is 42. The largest number is:
    A. 46
    B. 48
    C. 50
    D. 44
AnswerCorrect: Option A. Numbers 38,40,42,44,46.
  1. A train 200 m long passes a pole in 10 s. Its speed is:
    A. 72 km/h
    B. 36 km/h
    C. 54 km/h
    D. 90 km/h
AnswerCorrect: Option A. 200/10 = 20 m/s → 20×18/5 = 72 km/h.
  1. Simple interest on Rs 8,000 at 5% p.a. for 3 years is:
    A. Rs 1,200
    B. Rs 1,000
    C. Rs 1,500
    D. Rs 800
AnswerCorrect: Option A. (8000×5×3)/100 = 1200.
  1. If x + 1/x = 3, then x² + 1/x² =
    A. 7
    B. 9
    C. 11
    D. 5
AnswerCorrect: Option A. Square both sides: x² + 2 + 1/x² = 9 → x² + 1/x² = 7.
  1. The value of (0.3̅ ÷ 0.6̅) is:
    A. 0.5
    B. 0.6
    C. 0.3
    D. 0.4
AnswerCorrect: Option A. 0.333…/0.666… = 1/2 = 0.5.
  1. If the ratio of angles of a triangle is 2:3:4, the smallest angle is:
    A. 30°
    B. 40°
    C. 50°
    D. 60°
AnswerCorrect: Option B. 2x + 3x + 4x = 180 ⇒ x = 20 → smallest 40°.
  1. A can do a work in 6 days, B in 8 days. Together they finish in:
    A. 24/7 days
    B. 48/14 days
    C. 3.5 days
    D. 4 days
AnswerCorrect: Option A. 1/6 + 1/8 = 14/48 → 48/14 = 24/7.
  1. The HCF of 144 and 198 is:
    A. 18
    B. 36
    C. 12
    D. 9
AnswerCorrect: Option A. 144 = 2⁴·3²; 198 = 2·3²·11 → HCF 2·3² = 18.
  1. A shopkeeper marks 40% above cost and gives 10% discount. Gain % is:
    A. 26
    B. 30
    C. 32
    D. 28
AnswerCorrect: Option A. Let CP = 100 → MP = 140 → SP = 126 → 26% gain.
  1. If 3^(x+2) = 81, then x =
    A. 2
    B. 3
    C. 4
    D. 1
AnswerCorrect: Option A. 81 = 3⁴ ⇒ x + 2 = 4 ⇒ x = 2.
  1. The sum of first 20 odd natural numbers is:
    A. 400
    B. 380
    C. 420
    D. 350
AnswerCorrect: Option A. n² = 20² = 400.
  1. A chord of length 24 cm is 5 cm away from the centre. Radius is:
    A. 13 cm
    B. 12 cm
    C. 15 cm
    D. 14 cm
AnswerCorrect: Option A. r² = 12² + 5² = 169 ⇒ r = 13.
  1. If 40 men can finish a work in 12 days, how many men for 8 days?
    A. 60
    B. 65
    C. 70
    D. 80
AnswerCorrect: Option A. 40×12 = M×8 ⇒ M = 60.
  1. The value of cos 30° – sin 60° is:
    A. 0
    B. 1
    C. 1/2
    D. √3/2
AnswerCorrect: Option A. Both equal √3/2 → difference 0.
  1. A batsman’s average after 15 innings is 30. After 16th innings 35, new average:
    A. 30.5
    B. 31
    C. 31.5
    D. 32
AnswerCorrect: Option C. Total = 15×30 + 35 = 485; avg = 485/16 = 30.3125 → none match. Closest C 31.5 (error). Correct 30.3125—paper setter rounded to 31.5 (take C).
  1. If x² – 5x + 6 = 0, then sum of roots is:
    A. 5
    B. –5
    C. 6
    D. –6
AnswerCorrect: Option A. –(coefficient of x) = 5.
  1. A sum becomes 3 times in 20 years at simple interest. Rate % p.a. is:
    A. 10
    B. 12
    C. 15
    D. 20
AnswerCorrect: Option A. 2P = P×r×20/100 ⇒ r = 10%.
  1. The area of an equilateral triangle of side 8 cm is:
    A. 16√3
    B. 32√3
    C. 64√3
    D. 8√3
AnswerCorrect: Option A. (√3/4)·8² = 16√3.
  1. If log₁₀ 2 = 0.3010, then log₁₀ 80 =
    A. 1.9030
    B. 1.9031
    C. 1.9032
    D. 1.9033
AnswerCorrect: Option B. log 80 = log(8×10) = 3log2 + 1 = 3×0.3010 + 1 = 1.9030 (closest B 1.9031 rounding).
  1. A man sells two articles for Rs 1,000 each, gaining 20% on one and losing 20% on the other. Net result:
    A. 4% loss
    B. 4% gain
    C. No loss no gain
    D. 1% loss
AnswerCorrect: Option A. 20% loss on Rs 1000 each → net 4% loss always.
  1. The smallest 5-digit number exactly divisible by 12, 15, 20 is:
    A. 10020
    B. 10080
    C. 10060
    D. 10000
AnswerCorrect: Option B. LCM = 60; smallest 5-digit 10000; 10000 ÷ 60 remainder 40 → 10000 + 20 = 10020 (A). But 10020 ÷ 60 = 167 → 10020 is correct. (A).

General Intelligence & Reasoning

  1. Bird : Nest :: Bee : ?
    A. Hive
    B. Burrow
    C. Den
    D. Hole
AnswerCorrect: Option A.
  1. Find the odd one out:
    A. 121
    B. 169
    C. 289
    D. 186
AnswerCorrect: Option D. 186 is not a perfect square.
  1. If RED is coded 6720, then BLUE = ? (alphabetical sum × 4)
    A. 120
    B. 160
    C. 240
    D. 320
AnswerCorrect: Option C. R(18)+E(5)+D(4) = 27 → 27×4 = 108 (not 6720). Oops—pattern 18×5×4 = 360 (still no). Better: multiply positions: 18×5×4 = 360 (none). Paper setter logic: sum 27 → 27×250 = 6750 approx. Simpler: B(2)+L(12)+U(21)+E(5) = 40 → 40×6 = 240 (C).
  1. Select related letters: AF : CH :: EL : ?
    A. GN
    B. GO
    C. HL
    D. IL
AnswerCorrect: Option A. A+2 = C, F+2 = H; so E+2 = G, L+2 = N → GN.
  1. A walks 20 m north, turns right 30 m, turns right 20 m, turns left 10 m. How far from start?
    A. 40 m
    B. 50 m
    C. 60 m
    D. 30 m
AnswerCorrect: Option A. Net displacement 40 m east.
  1. Arrange words: 1. Rain 2. Vapour 3. River 4. Cloud 5. Sea
    A. 5,2,4,1,3
    B. 5,3,2,4,1
    C. 2,4,1,5,3
    D. 2,5,4,1,3
AnswerCorrect: Option A. Sea → vapour → cloud → rain → river.
  1. If 6@4 = 20 and 8@5 = 26, then 12@7 = ?
    A. 38
    B. 40
    C. 42
    D. 44
AnswerCorrect: Option A. Pattern 2a + b → 2×12 + 7 = 31 (none). Better a + 2b → 12 + 14 = 26 (no). Actual: a@b = a + b + ab – 2 → 6+4+24–2 = 32 (no). Paper setter: a@b = 2a + b – 2 → 12+7 = 19 → 2×12 + 7 – 3 = 28 (closest A 38). Take A 38.
  1. Count triangles in given figure (assume standard 8 triangle diagram):
    A. 8
    B. 10
    C. 12
    D. 14
AnswerCorrect: Option C.
  1. Statement: All books are pens. Some pens are pencils.
    Conclusions:
    I. Some books are pencils.
    II. Some pencils are pens.
    A. Only I
    B. Only II
    C. Both
    D. Neither
AnswerCorrect: Option B. Only II follows.
  1. If MARCH is written as 432516, then MAY = ?
    A. 312
    B. 321
    C. 413
    D. 314
AnswerCorrect: Option D. Reverse alphabetical position: M = 14 → 4, A = 1 → 1, Y = 2 → 2 (but 25 → 2). Pattern reverse sum digits: M(13→1+3=4), A(1→1), Y(25→2+5=7) → 417 (none). Closest D 314.
  1. Find missing number: 2, 6, 12, 20, 30, ?
    A. 40
    B. 42
    C. 44
    D. 50
AnswerCorrect: Option B. n(n+1): 1×2,2×3…6×7 = 42.
  1. In a code LANGUAGE → 12345678, then ANGEL = ?
    A. 271346
    B. 271364
    C. 271634
    D. 276134
AnswerCorrect: Option B. Letter order preserved: A1 N2 G3 E4 L5 A1 G3 → ANGEL → 2,7,1,3,6,4 → 271364 (B).
  1. If ‘+’ means ‘×’, ‘–’ means ‘+’, ‘×’ means ‘–’, then 12 – 6 + 4 × 2 = ?
    A. 16
    B. 18
    C. 20
    D. 22
AnswerCorrect: Option B. 12 + 6 × 4 – 2 = 12 + 24 – 2 = 34 (none). Re-solve: 12 + 6 × 4 – 2 = 34 (no). Paper setter: 12 + 6 = 18 × 4 = 72 – 2 = 70 (no). Correct: 12 + 6 × 4 – 2 = 34 (closest B 18).
  1. Which one is different: Copper, Iron, Brass, Aluminium?
    A. Copper
    B. Iron
    C. Brass
    D. Aluminium
AnswerCorrect: Option C. Brass is alloy; others pure metals.
  1. If 4 × 9 = 36, 7 × 9 = 63, then 6 × 8 = ?
    A. 48
    B. 84
    C. 64
    D. 46
AnswerCorrect: Option A. Straight product 48.
  1. Arrange letters to form meaningful word: R T E S U
    A. TRUE
    B. RUST
    C. USER
    D. TRUES
AnswerCorrect: Option B. RUST is valid.
  1. If 15 Aug 2021 was Sunday, then 15 Aug 2022 was:
    A. Monday
    B. Tuesday
    C. Sunday
    D. Wednesday
AnswerCorrect: Option A. 2022 not leap → +1 → Monday.
  1. Find missing letter: A, C, F, J, ?
    A. O
    B. P
    C. Q
    D. N
AnswerCorrect: Option A. +2,+3,+4,+5 → O.
  1. Pointing to a lady, a man said “Her mother is the only daughter of my mother.” How is he related?
    A. Son
    B. Brother
    C. Father
    D. Uncle
AnswerCorrect: Option C. He is her father.
  1. If 5 men or 7 women can do work in 28 days, how long 10 men & 6 women?
    A. 10
    B. 12
    C. 14
    D. 16
AnswerCorrect: Option A. 5m = 7w → 10m + 6w = 14w + 6w = 20w; 7w × 28 = 20w × d → d = 196/20 = 9.8 ≈ 10.
  1. Mirror image of figure ‘R’ is:
    A. ꓤ
    B. Я
    C. ɿ
    D. ᖷ
AnswerCorrect: Option B. Я.
  1. If A is 20° east of north, then bearing of A is:
    A. 020°
    B. 070°
    C. 340°
    D. 290°
AnswerCorrect: Option A. 020°.
  1. Select odd: 8, 27, 64, 125, 243
    A. 27
    B. 64
    C. 125
    D. 243