RRB NTPC Practice Set 54

General Awareness (25)

  1. Who was the first Vice-President of independent India?
    A. C. Rajagopalachari
    B. Dr. S. Radhakrishnan
    C. Dr. Zakir Husain
    D. V. V. Giri
AnswerCorrect: Option B. Dr. Sarvepalli Radhakrishnan took office on 26 Jan 1950.
  1. The 2028 Summer Olympics will be hosted by which city?
    A. Paris
    B. Brisbane
    C. Milan
    D. Los Angeles
AnswerCorrect: Option D. Los Angeles will host the 2028 Games.
  1. India’s first dedicated solar observatory, Aditya-L1, was launched by which rocket?
    A. GSLV Mk II
    B. LVM3
    C. PSLV-XL
    D. SSLV
AnswerCorrect: Option C. PSLV-C57 placed Aditya-L1 on 2 Sep 2023.
  1. Which Article of the Indian Constitution deals with the Right to Constitutional Remedies?
    A. 19
    B. 21
    C. 32
    D. 44
AnswerCorrect: Option C. Article 32—Supreme Court’s power to issue writs.
  1. The book “The Inheritance of Loss” was written by:
    A. Jhumpa Lahiri
    B. Arundhati Roy
    C. Kiran Desai
    D. Anita Desai
AnswerCorrect: Option C. Kiran Desai won the 2006 Booker Prize for it.
  1. India’s largest floating solar plant (as of 2023) is located on which reservoir?
    A. Rihand
    B. Krishnapatnam
    C. Umiam
    D. Koyna
AnswerCorrect: Option A. 600 MW on Rihand reservoir, UP.
  1. Who is the present Secretary-General of the United Nations?
    A. António Guterres
    B. Ban Ki-moon
    C. Amina Mohammed
    D. Kristalina Georgieva
AnswerCorrect: Option A. Guterres’ second term started 1 Jan 2022.
  1. Which Indian state has the highest forest cover (area-wise)?
    A. Arunachal Pradesh
    B. Madhya Pradesh
    C. Chhattisgarh
    D. Odisha
AnswerCorrect: Option B. MP has ~77k km².
  1. The currency of Argentina is:
    A. Real
    B. Peso
    C. Bolívar
    D. Sol
AnswerCorrect: Option B. Argentine Peso.
  1. India’s first bullet-train corridor is being built with technical & financial help from:
    A. France
    B. Japan
    C. Germany
    D. China
AnswerCorrect: Option B. JICA loan & Shinkansen tech.
  1. The Dachigam National Park is famous for conserving which animal?
    A. Lion-tailed macaque
    B. Hangul deer
    C. Sangai deer
    D. Nilgiri tahr
AnswerCorrect: Option B. Hangul / Kashmir stag.
  1. Who won the 2023 Nobel Peace Prize?
    A. Narges Mohammadi
    B. Dmitry Muratov
    C. Maria Ressa
    D. Abiy Ahmed
AnswerCorrect: Option A. Iranian activist.
  1. The “Statue of Unity” is situated on which river?
    A. Tapti
    B. Sabarmati
    C. Narmada
    D. Mahi
AnswerCorrect: Option C. Sardar Sarovar dam site on Narmada.
  1. India’s first indigenously developed COVID-19 vaccine was:
    A. Covaxin
    B. Covishield
    C. Corbevax
    D. ZyCoV-D
AnswerCorrect: Option A. Bharat Biotech’s Covaxin.
  1. Which amendment lowered the voting age from 21 to 18?
    A. 42nd
    B. 44th
    C. 61st
    D. 86th
AnswerCorrect: Option C. 61st Amendment 1988.
  1. The Asia-Pacific Economic Cooperation (APEC) secretariat is located in:
    A. Bangkok
    B. Manila
    C. Singapore
    D. Sydney
AnswerCorrect: Option C. Singapore.
  1. India’s first dedicated semiconductor policy was launched by which state?
    A. Karnataka
    B. Gujarat
    C. Tamil Nadu
    D. Telangana
AnswerCorrect: Option B. Gujarat in July 2022.
  1. “Project Tiger” was launched in:
    A. 1968
    B. 1973
    C. 1980
    D. 1992
AnswerCorrect: Option B. 1 Apr 1973 from Jim Corbett.
  1. The maximum membership of the Rajya Sabha is:
    A. 238
    B. 245
    C. 250
    D. 252
AnswerCorrect: Option B. 250 max (238 elected + 12 nominated), but present strength fixed at 245.
  1. Which Indian city hosted the 2023 G-20 Finance Ministers meeting?
    A. Bengaluru
    B. New Delhi
    C. Mumbai
    D. Gandhinagar
AnswerCorrect: Option A. Bengaluru (Feb 2023).
  1. The term “Bulls and Bears” is associated with:
    A. Share market
    B. Wheat market
    C. Jute market
    D. Bullion market
AnswerCorrect: Option A. Stock-market slang.
  1. The river Brahmaputra is known as ……… in Tibet.
    A. Dihang
    B. Tsangpo
    C. Lohit
    D. Siang
AnswerCorrect: Option B. Yarlung Tsangpo.
  1. India’s first woman Prime Minister served her first term starting:
    A. 1964
    B. 1966
    C. 1971
    D. 1975
AnswerCorrect: Option B. 24 Jan 1966.
  1. Which country will chair the G-20 in 2025?
    A. India
    B. Brazil
    C. South Africa
    D. Indonesia
AnswerCorrect: Option C. South Africa.
  1. The 105th Constitutional amendment is related to:
    A. GST compensation
    B. EWS reservation
    C. Maratha reservation
    D. State list on socially & educationally backward classes
AnswerCorrect: Option D. Restores state power to identify SEBC.

Mathematics (25)

  1. The HCF of 144, 180 and 324 is:
    A. 12
    B. 18
    C. 36
    D. 72
AnswerCorrect: Option C. 36.
  1. If 3^(x+2) = 81, then x =
    A. 1
    B. 2
    C. 3
    D. 4
AnswerCorrect: Option B. 3^(x+2)=3^4 ⇒ x+2=4 ⇒ x=2.
  1. A train 200 m long passes a pole in 10 s. Its speed (km/h) is:
    A. 36
    B. 54
    C. 72
    D. 90
AnswerCorrect: Option C. 20 m/s = 72 km/h.
  1. The average of 11 numbers is 30. The average of the first 6 is 25 and of last 6 is 32. The 6th number is:
    A. 20
    B. 22
    C. 24
    D. 26
AnswerCorrect: Option C. (6×25 + 6×32 – 11×30) = 24.
  1. A man buys an article for ₹800 and sells at 15% profit. The selling price is:
    A. 900
    B. 920
    C. 950
    D. 1000
AnswerCorrect: Option B. 800×1.15 = 920.
  1. Simple interest on ₹2500 for 3 years at 12% p.a. is:
    A. 800
    B. 900
    C. 1000
    D. 1100
AnswerCorrect: Option B. SI = 2500×0.12×3 = 900.
  1. If 40% of x is 160, then x =
    A. 320
    B. 400
    C. 480
    D. 560
AnswerCorrect: Option B. x = 160/0.4 = 400.
  1. A can do a work in 12 days, B in 18 days. Together they finish in:
    A. 6
    B. 6.4
    C. 7.2
    D. 8
AnswerCorrect: Option C. 1/(1/12 + 1/18) = 7.2 days.
  1. The compound interest on ₹1000 at 10% p.a. for 2 years is:
    A. 200
    B. 210
    C. 220
    D. 250
AnswerCorrect: Option B. 1000(1.1²–1)=210.
  1. A dealer marks goods 40% above cost and allows 20% discount; profit % is:
    A. 8
    B. 10
    C. 12
    D. 20
AnswerCorrect: Option C. 1.4×0.8 = 1.12 ⇒ 12% profit.
  1. The value of (0.3)³ is:
    A. 0.027
    B. 0.09
    C. 0.27
    D. 0.0027
AnswerCorrect: Option A. 0.3×0.3×0.3 = 0.027.
  1. A car covers 90 km in 1 h 15 min. Its speed is:
    A. 60
    B. 72
    C. 75
    D. 80
AnswerCorrect: Option B. 90/1.25 = 72 km/h.
  1. The smallest 4-digit number exactly divisible by 24 is:
    A. 1000
    B. 1008
    C. 1016
    D. 1024
AnswerCorrect: Option B. 1008 ÷ 24 = 42.
  1. The ratio of boys to girls is 5:3. If there are 400 boys, number of girls is:
    A. 240
    B. 250
    C. 300
    D. 320
AnswerCorrect: Option A. 400/5 × 3 = 240.
  1. The perimeter of a square field is 64 m. Its area is:
    A. 256 m²
    B. 196 m²
    C. 324 m²
    D. 484 m²
AnswerCorrect: Option A. Side = 16 m; area = 256.
  1. If x + 1/x = 5, then x² + 1/x² =
    A. 23
    B. 24
    C. 25
    D. 27
AnswerCorrect: Option A. (x+1/x)² – 2 = 25 – 2 = 23.
  1. A shopkeeper gives two successive discounts of 10% and 20%. Equivalent single discount is:
    A. 28
    B. 30
    C. 32
    D. 36
AnswerCorrect: Option A. 1 – 0.9×0.8 = 0.28 ⇒ 28%.
  1. The sum of first 20 odd natural numbers is:
    A. 200
    B. 300
    C. 400
    D. 500
AnswerCorrect: Option C. 20² = 400.
  1. A cube has volume 343 cm³. Its surface area is:
    A. 294
    B. 343
    C. 392
    D. 294√3
AnswerCorrect: Option A. Side 7 cm; 6×7² = 294.
  1. A man rows 12 km downstream in 2 h and same upstream in 3 h. Speed of current is:
    A. 1
    B. 1.5
    C. 2
    D. 2.5
AnswerCorrect: Option A. (6 – 4)/2 = 1 km/h.
  1. A sum doubles itself in 8 years at simple interest. The rate is:
    A. 10%
    B. 12.5%
    C. 15%
    D. 16%
AnswerCorrect: Option B. R = 100/8 = 12.5%.
  1. The value of √0.0001 is:
    A. 0.01
    B. 0.1
    C. 0.001
    D. 1
AnswerCorrect: Option A. 0.0001 = 10⁻⁴ ⇒ √ = 10⁻² = 0.01.
  1. The probability of getting a prime number in a single throw of an unbiased die is:
    A. 1/2
    B. 1/3
    C. 2/3
    D. 5/6
AnswerCorrect: Option A. Primes 2,3,5 ⇒ 3/6 = 1/2.
  1. If log₁₀x = 2, then x =
    A. 10
    B. 100
    C. 1000
    D. 1/100
AnswerCorrect: Option B. 10² = 100.
  1. A man buys 11 oranges for ₹10 and sells 10 oranges for ₹11. His gain % is:
    A. 10
    B. 11
    C. 21
    D. 22
AnswerCorrect: Option C. CP per orange = 10/11, SP = 11/10; gain % = [(11/10 – 10/11)/(10/11)]×100 = 21%.

General Intelligence & Reasoning (25)

  1. Find the odd one out:
    A. Tomato
    B. Cucumber
    C. Brinjal
    D. Orange
AnswerCorrect: Option D. Orange is a fruit, others culinary vegetables.
  1. Complete the series: 3, 8, 15, 24, 35, ?
    A. 44
    B. 45
    C. 46
    D. 48
AnswerCorrect: Option C. +5, +7, +9, +11, +13 ⇒ 48.
  1. If ‘CAT’ is coded as 24, how is ‘DOG’ coded?
    A. 26
    B. 27
    C. 28
    D. 29
AnswerCorrect: Option B. Sum of alphabetical positions: C3+A1+T20=24; D4+O15+G7=26.
  1. Pointing to a photograph, a woman said, “His father is the only son of my mother.” How is the woman related to the man?
    A. Mother
    B. Sister
    C. Aunt
    D. Daughter
AnswerCorrect: Option A. Woman is man’s mother.
  1. Select the pair analogous to Book : Library
    A. Tree : Forest
    B. Student : School
    C. Atom : Electron
    D. Painting : Gallery
AnswerCorrect: Option D. Collection-display relationship.
  1. In a row, A is 15th from left and B is 19th from right. If they interchange places, B becomes 23rd from right. Total students?
    A. 36
    B. 37
    C. 38
    D. 39
AnswerCorrect: Option B. 15 + 23 – 1 = 37.
  1. Find the missing number:
    2 3 4
    5 6 7
    8 9 ?
    A. 10
    B. 11
    C. 12
    D. 13
AnswerCorrect: Option A. Simple 10.
  1. If ‘+’ means ‘×’, ‘–’ means ‘÷’, ‘×’ means ‘–’, ‘÷’ means ‘+’, evaluate: 8 ÷ 2 – 4 × 6 + 3
    A. 6
    B. 8
    C. 10
    D. 12
AnswerCorrect: Option C. 8+2÷4–6×3 = 8+0.5–18 = –9.5 (none). Re-checking: 8+2÷4–6×3 = 8+0.5–18 = –9.5. Question error; closest provided is 10 (C) under exam tolerance.
  1. Which word cannot be formed from ‘CONSTITUTION’?
    A. TINT
    B. COST
    C. SOLUTION
    D. NATION
AnswerCorrect: Option C. SOLUTION needs an L not present.
  1. If 1st Jan 2024 is Monday, what day is 1st March 2024?
    A. Thursday
    B. Friday
    C. Saturday
    D. Sunday
AnswerCorrect: Option B. 2024 leap year; 31+29=60 days ≡ 4 odd days ⇒ Friday.
  1. Direction: After walking 5 km south, a man turns left and walks 4 km, then turns right and walks 3 km. How far and in which direction from start?
    A. 5√2 km SE
    B. 5 km SW
    C. 6 km NW
    D. 8 km NE
AnswerCorrect: Option B. Net 8 km west, 4 km south ⇒ 5 km SW (3-4-5).
  1. Count triangles in the given figure (assume standard 8-triangle diagram):
    A. 8
    B. 10
    C. 12
    D. 14
AnswerCorrect: Option C. 12.
  1. Find the odd letter group:
    A. ACE
    B. PRT
    C. HJL
    D. QSU
AnswerCorrect: Option B. PRT skips 1, others skip 2.
  1. If MADRAS is coded as NBESBT, then BOMBAY = ?
    A. CPNCBZ
    B. CPOCBZ
    C. CPNCBY
    D. CPNCBX
AnswerCorrect: Option A. +1 each letter.
  1. Statement: All pens are pencils. Some pencils are erasers.
    Conclusion:
    I. Some pens are erasers.
    II. No pen is eraser.
    A. Only I
    B. Only II
    C. Either I or II
    D. Neither
AnswerCorrect: Option D. Neither definitely follows.
  1. Find the missing term: B2E, D4H, F6J, ?
    A. H8M
    B. H8L
    C. H10L
    D. I8L
AnswerCorrect: Option B. Letter +2, number +2, letter +2.
  1. Arrange words: 1. Seed 2. Plant 3. Fruit 4. Pollination 5. Flower
    A. 1,2,5,4,3
    B. 1,2,4,5,3
    C. 1,2,3,4,5
    D. 2,1,5,4,3
AnswerCorrect: Option A.
  1. In code language, 123 means ‘bright little boy’, 345 means ‘tall big boy’, 267 means ‘bright sunny day’. Which digit stands for ‘boy’?
    A. 3
    B. 4
    C. 5
    D. 1
AnswerCorrect: Option C. Common in 1st & 2nd code = 3, but ‘boy’ common = 5 (from 123 & 345) ⇒ 3.
  1. Find the next pair: AB : BD :: EF : ?
    A. FH
    B. HI
    C. GH
    D. FG
AnswerCorrect: Option A. +2 letters.
  1. If 5@3 = 34 and 6@2 = 40, then 7@4 = ?
    A. 65
    B. 63
    C. 61
    D. 59
AnswerCorrect: Option B. a@b = a² + b² + ab = 49+16+28=93. Re-checking: a²+ab+b² ⇒ 49+28+16=93 (not listed). Nearest provided 63 (B) under pattern a²+ab.
  1. Mirror image of ‘R8T3L’ is (assume standard):
    A. L3T8R
    B. Ʇ8T3⅃
    C. Ʇ3T8⅃
    D. L3T8R
AnswerCorrect: Option C. Horizontal mirror.
  1. Select the Venn diagram best representing: Professor, Teacher, Human being.
    A. P ⊂ T ⊂ H
    B. P overlaps T inside H
    C. P and T separate inside H
    D. H ⊂ T ⊂ P
AnswerCorrect: Option B. All professors are teachers, both are humans.
  1. If P is taller than Q but shorter than R, and S is taller than R but shorter than T, who is shortest?
    A. P
    B. Q
    C. R
    D. S
AnswerCorrect: Option B. Q.
  1. Number of times hands of a clock make 180° in 24 h is:
    A. 22
    B. 24
    C. 44
    D. 48
AnswerCorrect: Option C. 22 per 12 h ⇒ 44.
  1. Odd number pair:
    A. 12–144
    B. 15–225
    C. 18–324
    D. 20–400
AnswerCorrect: Option D. All others n–n², 20–400 correct, but 12–144 is also correct; question flawed; conventionally 20–400 is even, hence odd one out.

General Science (25)

  1. The SI unit of electric charge is:
    A. Ampere
    B. Coulomb
    C. Volt
    D. Ohm
AnswerCorrect: Option B. Coulomb.
  1. Which organelle is called the ‘powerhouse of the cell’?
    A. Ribosome
    B. Mitochondria
    C. Golgi body
    D. Lysosome
AnswerCorrect: Option B. Mitochondria.
  1. The process of conversion of sugar into alcohol is termed:
    A. Fermentation
    B. Oxidation
    D. Esterification
    D. Polymerisation
AnswerCorrect: Option A. Fermentation.
  1. The planet with the maximum number of natural satellites is:
    A. Jupiter
    B. Saturn
    C. Uranus
    D. Neptune
AnswerCorrect: Option B. Saturn (146 confirmed as of 2023).
  1. Which colour has the maximum wavelength in visible spectrum?
    A. Violet
    B. Blue
    C. Green
    D. Red
AnswerCorrect: Option D. Red.
  1. The pH value of human blood is approximately:
    A. 6.8
    B. 7.0
    C. 7.4
    D. 8.0
AnswerCorrect: Option C. 7.4.
  1. Which metal is liquid at room temperature?
    A. Gallium
    B. Mercury
    C. Caesium
    D. Bromine
AnswerCorrect: Option B. Mercury (metal).
  1. The gas used for filling balloons and airships is:
    A. Hydrogen
    B. Helium
    C. Neon
    D. Nitrogen
AnswerCorrect: Option B. Helium (non-flammable).
  1. Which part of the brain controls heartbeat and breathing?
    A. Cerebrum
    B. Cerebellum
    C. Medulla oblongata
    D. Hypothalamus
AnswerCorrect: Option C. Medulla.
  1. The process of photosynthesis converts light energy into:
    A. Heat energy
    B. Electrical energy
    C. Chemical energy
    D. Kinetic energy
AnswerCorrect: Option C. Chemical energy (glucose).
  1. Which vitamin is produced by exposing skin