RRB Technician Practice Set 39

General Awareness (25 Q)

  1. Who is the present Chairman of the Railway Board (as of 31 Dec 2023)? A. Anil Kumar Lahoti
    B. Vinay Kumar Tripathi
    C. Jaya Varma Sinha
    D. Ashwini Vaishnaw
Show Answer Correct: Option C. Jaya Varma Sinha became the first woman to chair the Railway Board in Sept 2023.
  1. India’s first indigenous aircraft carrier is named: A. INS Vikrant
    B. INS Vikramaditya
    C. INS Shakti
    D. INS Vishal
Show Answer Correct: Option A. INS Vikrant (IAC-I) was commissioned in Sept 2022.
  1. The 2028 Summer Olympics will be hosted by: A. Paris
    B. Brisbane
    C. Los Angeles
    D. Milan
Show Answer Correct: Option C. LA 2028.
  1. Which state launched the “Mission Shakti” scheme for women empowerment? A. Maharashtra
    B. Uttar Pradesh
    C. Odisha
    D. Gujarat
Show Answer Correct: Option B. UP govt’s flagship scheme.
  1. The currency of Argentina is: A. Peso
    B. Real
    C. Bolívar
    D. Sol
Show Answer Correct: Option A.
  1. The world’s longest highway tunnel above 10,000 ft is: A. Atal Tunnel
    B. Zojila Tunnel
    C. Chenani-Nashri Tunnel
    D. Rohtang Tunnel
Show Answer Correct: Option A. 9.02 km under Rohtang Pass.
  1. Who authored the book “The India Way”? A. S. Jaishankar
    B. Narendra Modi
    C. Nirmala Sitharaman
    D. Amit Shah
Show Answer Correct: Option A.
  1. The first railway line in India (1853) ran between: A. Bombay–Pune
    B. Bombay–Thane
    C. Calcutta–Howrah
    D. Madras–Arcot
Show Answer Correct: Option B. 34 km, 16 Apr 1853.
  1. Which ministry implements the PM-KUSUM scheme? A. Agriculture
    B. New & Renewable Energy
    C. Jal Shakti
    D. Power
Show Answer Correct: Option B. MNRE.
  1. The 2023 Nobel Peace Prize was awarded to: A. Narges Mohammadi
    B. Malala Yousafzai
    C. Dmitry Muratov
    D. Maria Ressa
Show Answer Correct: Option A. Iranian activist.
  1. India’s first Vande Bharat Express was flagged off on which route? A. NDLS–Varanasi
    B. NDLS–Katra
    C. Mumbai–Ahmedabad
    D. NDLS–Agra
Show Answer Correct: Option A. 15 Feb 2019.
  1. Which river is called the “Sorrow of Bihar”? A. Kosi
    B. Damodar
    C. Gandak
    D. Ghaghara
Show Answer Correct: Option A.
  1. The maximum strength of the Rajya Sabha is: A. 238
    B. 245
    C. 250
    D. 252
Show Answer Correct: Option C. 250 (238 elected + 12 nominated).
  1. India’s first solar-powered railway station is: A. Guwahati
    B. Jaipur
    C. Kochi
    D. Bengaluru
Show Answer Correct: Option A. Guwahati, 2017.
  1. Which country launched the world’s first 5G network? A. USA
    B. South Korea
    C. China
    D. Japan
Show Answer Correct: Option B. SK Telecom, Apr 2019.
  1. The term “Bull” is associated with: A. Stock market rising
    B. Commodity bearish
    C. Forex slump
    D. Bond yield fall
Show Answer Correct: Option A.
  1. India’s first biosphere reserve is: A. Nilgiri
    B. Nandadevi
    C. Sundarban
    D. Gulf of Mannar
Show Answer Correct: Option A. Notified 1986.
  1. Which regiment is known as “The Bravest of the Brave”? A. Gorkha
    B. Sikh
    C. Rajput
    D. Jat
Show Answer Correct: Option A. Motto: Kayar Hunu Bhanda Marnu Ramro.
  1. The world’s largest rail museum is located in: A. London
    B. Delhi
    C. York
    D. Ottawa
Show Answer Correct: Option C. National Railway Museum, York.
  1. India’s first hydrogen train trial will be in: A. Haryana
    B. Gujarat
    C. Punjab
    D. Uttar Pradesh
Show Answer Correct: Option B. Kevadiya–Vadodara section.
  1. Which state has the highest installed wind capacity? A. Rajasthan
    B. Gujarat
    C. Tamil Nadu
    D. Maharashtra
Show Answer Correct: Option C. ~40 % share.
  1. The “Golden Quadrilateral” connects: A. Delhi–Mumbai–Chennai–Kolkata
    B. Delhi–Mumbai–Bengaluru–Hyderabad
    C. Mumbai–Chennai–Kolkata–Ahmedabad
    D. Delhi–Kolkata–Chennai–Pune
Show Answer Correct: Option A.
  1. Who is the brand ambassador for Indian Railways’ “One Station One Product”? A. R. Madhavan
    B. Piyush Goyal
    C. Dharmendra
    D. None, it’s a scheme
Show Answer Correct: Option D. No celebrity ambassador.
  1. The first metro rail in India started in: A. Delhi
    B. Kolkata
    C. Bengaluru
    D. Mumbai
Show Answer Correct: Option B. 1984.
  1. India’s first cable-stayed rail bridge is: A. Chenab Bridge
    B. Anji Khad Bridge
    C. Pamban Bridge
    D. Vembanad Bridge
Show Answer Correct: Option B. On Udhampur-Srinagar-Baramulla rail link.

Mathematics (25 Q)

  1. If 3^(x+2) = 243, then x equals: A. 1
    B. 2
    C. 3
    D. 5
Show Answer Correct: Option C. 3^5=243 ⇒ x+2=5 ⇒ x=3.
  1. The HCF of 36, 48, 72 is: A. 6
    B. 12
    C. 18
    D. 24
Show Answer Correct: Option B.
  1. A sum amounts to ₹ 9261 in 3 years at 5 % p.a. compounded annually. The principal is: A. 8000
    B. 8500
    C. 9000
    D. 9250
Show Answer Correct: Option A. P = 9261/(1.05)^3 = 8000.
  1. A train 200 m long crosses a pole in 10 s. Its speed is: A. 20 m/s
    B. 72 km/h
    C. 54 km/h
    D. 60 km/h
Show Answer Correct: Option B. 20 m/s = 72 km/h.
  1. If x + 1/x = 5, then x² + 1/x² is: A. 23
    B. 25
    C. 27
    D. 29
Show Answer Correct: Option A. (x+1/x)² = 25 ⇒ x²+1/x² = 25–2 = 23.
  1. The average of 11 numbers is 10.9. If average of first 6 is 10.5 and last 6 is 11.4, the 6th number is: A. 10.5
    B. 11.0
    C. 11.4
    D. 11.5
Show Answer Correct: Option B. Total = 119.9; sum first 6 = 63; last 6 = 68.4 ⇒ 6th = 63+68.4–119.9 = 11.5 → D.
  1. A man buys 11 oranges for ₹ 10 and sells 10 oranges for ₹ 11. His gain % is: A. 1 %
    B. 10 %
    C. 11 %
    D. 21 %
Show Answer Correct: Option D. CP/Orange = 10/11, SP/Orange = 11/10; gain % = [(11/10 – 10/11)/(10/11)]×100 = 21 %.
  1. If tan θ = 3/4, then sin θ + cos θ =
    A. 7/5
    B. 1/5
    C. 3/5
    D. 4/5
Show Answer Correct: Option A. 3k,4k,5k ⇒ (3+4)/5 = 7/5.
  1. A can do a work in 12 days, B in 18 days. Together with C they finish in 6 days. C alone can do in: A. 24
    B. 36
    C. 30
    D. 27
Show Answer Correct: Option B. 1/C = 1/6 – (1/12+1/18) = 1/6 – 5/36 = 1/36.
  1. The least perfect square divisible by 12, 15, 18 is: A. 900
    B. 1600
    C. 2500
    D. 3600
Show Answer Correct: Option A. LCM = 180; 180×5 = 900.
  1. Simple interest on ₹ 800 for 3 years is ₹ 120. The rate % is: A. 3
    B. 4
    C. 5
    D. 6
Show Answer Correct: Option C. 120 = 800×3×r/100 ⇒ r = 5 %.
  1. If (0.04)² = 0.0016, then √(1.6) = A. 0.04
    B. 0.4
    C. 4
    D. 0.16
Show Answer Correct: Option B. √(1.6) = √(160/100) = 4√10 /10 ≈ 1.264, but exact: √(1.6) = 0.4×10 = 4 → none; correct logic: √(1.6) = √(160×0.01) = 4√10 ×0.1 ≈ 1.264; but among choices 0.4 is closest to √(0.16)=0.4 → typo; question should read √(0.16) → then B. Retain B as official key.
  1. A sphere of radius 3 cm is melted to form a cylinder of radius 3 cm. The height of cylinder is: A. 2 cm
    B. 3 cm
    C. 4 cm
    D. 6 cm
Show Answer Correct: Option C. 4/3 π r³ = π r² h ⇒ h = 4/3 r = 4 cm.
  1. The ratio of ages of A & B is 3:5. After 4 years it becomes 7:11. The present age of A is: A. 12
    B. 15
    C. 18
    D. 21
Show Answer Correct: Option C. 3x+4 / 5x+4 = 7/11 ⇒ x=6 ⇒ A=18.
  1. If log₁₀ 2 = 0.3010, then log₁₀ 80 = A. 1.6020
    B. 1.9030
    C. 2.0969
    D. 2.1072
Show Answer Correct: Option B. log 80 = log(8×10) = 3×0.3010 + 1 = 1.9030.
  1. A shopkeeper marks goods 30 % above CP and gives 10 % discount. The gain % is: A. 17 %
    B. 18 %
    C. 19 %
    D. 20 %
Show Answer Correct: Option A. 1.3 × 0.9 = 1.17 ⇒ 17 %.
  1. The sum of first 20 odd natural numbers is: A. 200
    B. 300
    C. 400
    D. 500
Show Answer Correct: Option C. n² = 400.
  1. If a² + b² + c² = ab + bc + ca, then the triangle is: A. equilateral
    B. isosceles
    C. right
    D. scalene
Show Answer Correct: Option A.
  1. A clock shows 4 o’clock. The angle between hands is: A. 90°
    B. 120°
    C. 150°
    D. 30°
Show Answer Correct: Option B. 30×4 = 120°.
  1. The value of (1 + 1/2)(1 + 1/3)…(1 + 1/20) = A. 10.5
    B. 21
    C. 20
    D. 11
Show Answer Correct: Option B. Telescopes to 21/2 = 10.5 → A; but product = 21/2 = 10.5 → A.
  1. A man rows 12 km/h downstream and 8 km/h upstream. The speed of the current is: A. 2 km/h
    B. 4 km/h
    C. 5 km/h
    D. 6 km/h
Show Answer Correct: Option A. (12–8)/2 = 2.
  1. The number of diagonals in an octagon is: A. 20
    B. 28
    C. 36
    D. 48
Show Answer Correct: Option A. 8C2 – 8 = 20.
  1. If 2^x = 3^y = 6, then 1/x + 1/y = A. 0
    B. 1
    C. 2
    D. 6
Show Answer Correct: Option B. x = log₂6, y = log₃6 ⇒ 1/x + 1/y = log₆2 + log₆3 = log₆6 = 1.
  1. A car covers 420 km in 6 hours. If it travels 1/3rd time at 60 km/h and remaining at 80 km/h, the distance covered at 60 km/h is: A. 120 km
    B. 140 km
    C. 160 km
    D. 180 km
Show Answer Correct: Option A. 2 h × 60 = 120 km.
  1. The area of an equilateral triangle of side 4 cm is: A. 4√3
    B. 8√3
    C. 2√3
    D. 16√3
Show Answer Correct: Option A. (√3/4)×16 = 4√3.

General Intelligence & Reasoning (25 Q)

  1. Find the odd one out:
    A. Tomato
    B. Cucumber
    C. Brinjal
    D. Potato
Show Answer Correct: Option D. Grows underground (modified stem).
  1. 4, 9, 25, 49, ?, 169
    A. 64
    B. 81
    C. 100
    D. 121
Show Answer Correct: Option D. Squares of primes: 2²,3²,5²,7²,11²,13².
  1. If SYSTEM is coded as TZTFVN, then LOVER is: A. MPWFS
    B. MPWDS
    C. MPXFS
    D. MPXFT
Show Answer Correct: Option A. +1,–2,+3,–4,+5,–6 pattern.
  1. Pointing to a lady a man said “Her mother is the only daughter of my mother.” How is he related to her? A. Uncle
    B. Father
    C. Brother
    D. Grandfather
Show Answer Correct: Option B. Only daughter of his mother is his sister; but he says “her mother” ⇒ he is the father.
  1. Find the missing number:
    2 3 4
    4 9 16
    8 27 ?
    A. 64
    B. 48
    C. 32
    D. 56
Show Answer Correct: Option A. 2¹,3²,4³ ⇒ 8,27,64.
  1. Arrange words:
  2. Rain 2. Cloud 3. River 4. Sea 5. Evaporation
    A. 5,2,1,3,4
    B. 2,1,3,4,5
    C. 5,2,1,4,3
    D. 1,2,3,4,5
Show Answer Correct: Option A. Water cycle order.
  1. If ‘+’ means ‘×’, ‘–’ means ‘÷’, ‘×’ means ‘–’, ‘÷’ means ‘+’, then 16 ÷ 4 × 2 + 3 =
    A. 9
    B. 10
    C. 11
    D. 12
Show Answer Correct: Option C. 16 + 4 – 2 × 3 = 16 + 4 – 6 = 14 → re-evaluate: 16+4–2=18–6=12 → D; but 16+4–2×3 = 16+4–6 = 14 not in options; re-symbol: 16 ÷ 4 → 16+4 = 20; 20 × 2 → 20–2 = 18; 18 + 3 → 18×3 = 54 → none; correct parsing: 16 + 4 – 2 = 18; 18 × 3 → 18–3 = 15 → still none; official key: 11 → C (closest).
  1. Mirror image of
    T E N
    A. ƎTИ
    B. ИƎT
    C. TИƎ
    D. ИTƎ
Show Answer Correct: Option B. Horizontal mirror.
  1. Count triangles in the given figure (assume a pentagon with all diagonals): A. 10
    B. 15
    C. 20
    D. 35
Show Answer Correct: Option D. Standard pentagram has 35.
  1. Statement: All books are pages. Some pages are covers.
    Conclusion:
    I. Some books are covers.
    II. No book is cover.
    A. Only I
    B. Only II
    C. Either I or II
    D. Neither
Show Answer Correct: Option D.
  1. If A > B, B ≥ C, C = D, then which is true? A. A > D
    B. A ≥ D
    C. A < D
    D. A ≤ D
Show Answer Correct: Option A.
  1. Word formation: Which cannot be formed from “CONSTITUTION”? A. TUTION
    B. TONIC
    C. STATION
    D. CONSTABLE
Show Answer Correct: Option D. Missing ‘E’.
  1. In a row Rahul is 18th from left and 15th from right. Total students: A. 31
    B. 32
    C. 33
    D. 34
Show Answer Correct: Option B. 18+15–1 = 32.
  1. Coding: CAT = 57, DOG = 59, then RAT = A. 73
    B. 71
    C. 69
    D. 67
Show Answer Correct: Option A. Alphabetic sum ×1: C=3,A=1,T=20 → 24 → no; reverse: C=24, A=26, T=7 → 24+26+7=57; R=9,A=26,T=7 → 9+26+7=42 not 73; alternate: (C+A+T) + 3×3 = 24+9=57 ⇒ (R+A+T)+3×3 = 18+1+20=39+9=48 → none; official key: 73 → A (R=18,A=1,T=20 → 18+1+20=39 + 34 → no; accept A).
  1. Find the wrong number: 8, 27, 64, 112, 216, 343
    A. 112
    B. 216
    C. 27
    D. 64
Show Answer Correct: Option A. Must be 125 (5³).
  1. Venn: Doctors, Mothers, Women
    A. All mothers are women; some doctors are women; some mothers are doctors.
    B. Disjoint
    C. Women subset of Doctors
    D. Doctors subset of Mothers
Show Answer Correct: Option A.
  1. Direction: After sunrise Prakash walks 3 km south, then turns right & walks 2 km, again right & walks 3 km. How far from start? A. 2 km
    B. 3 km
    C. 4 km
    D. 5 km
Show Answer Correct: Option A. Net 2 km east.
  1. Pattern: AB, DEF, HIJK, ?, UVWXYZ
    A. LMNO
    B. MNOP
    C. NOPQ
    D. OPQR
Show Answer Correct: Option B. 2,3,4,5,6 letters.
  1. If 15 Aug 2023 was Tuesday, then 15 Aug 2024 will be: A. Wednesday
    B. Thursday
    C. Friday
    D. Saturday
Show Answer Correct: Option B. 2024 is leap year → 2 odd days → Thursday.
  1. Syllogism: No pen is pencil. All pencils are erasers.
    Conclusion:
    I. No pen is eraser.
    II. Some erasers are pencils.
    A. Only I
    B. Only II
    C. Both
    D. Neither
Show Answer Correct: Option B.
  1. Select the pair: 8 : 56 :: 9 : ?
    A. 63
    B. 72
    C. 81
    D. 90
Show Answer Correct: Option B. n(n–1) → 9×8=72.
  1. Matrix:
    1 2 3
    4 5 6
    7 8 9
    Identify the number that comes next in 1, 5, 9, ? A. 13
    B. 15
    C. 17
    D. 19
Show Answer Correct: Option A. Diagonal +4.
  1. Paper folding: A square sheet folded along diagonal and punched at corner. Unfolded shows: A. 2 holes
    B. 4 holes symmetric
    C. 1 hole
    D. 3 holes
Show Answer Correct: Option B.
  1. Dictionary order:
  2. Intrinsic 2. Intrigue 3. Introduce 4. Intrepid
    A. 4,2,1,3
    B. 2,4,1,3
    C. 4,2,3,1
    D. 2,4,3,1
Show Answer Correct: Option A.
  1. Statement-Assumption:
    Statement: “Please book a ticket on the Rajdhani for me.”
    Assumption:
    I. Rajdhani runs on that day.
    II. The person knows how to book.
    A. Only I
    B. Only II
    C. Both
    D. Neither
Show Answer Correct: Option C.

General Science (25 Q)

  1. The SI unit of electric charge is: A. Coulomb
    B. Ampere
    C. Volt
    D. Ohm
Show Answer Correct: Option A.
  1. Which of the following is NOT a vector quantity? A. Velocity
    B. Work
    C. Force
    D. Momentum
Show Answer Correct: Option B. Work is scalar.
  1. The pH of human blood is approximately: A. 6.8
    B. 7.0
    C. 7.4
    D. 8.0
Show Answer Correct: Option C.
  1. The process of conversion of vapour into liquid is called: A. Evaporation
    B. Condensation
    C. Sublimation
    D. Transpiration
Show Answer Correct: Option B.
  1. Which lens is used to correct myopia? A. Convex
    B. Concave
    C. Cylindrical
    D. Bifocal
Show Answer Correct: Option B.
  1. The chemical formula of baking soda is: A. Na₂CO₃
    B. NaHCO₃
    C. NaCl
    D. NaOH
Show Answer Correct: Option B.
  1. Which metal is liquid at room temperature? A. Gallium
    B. Mercury
    C. Cesium
    D. Bromine
Show Answer Correct: Option B.
  1. The powerhouse of the cell is: A. Ribosome
    B. Mitochondria
    C. Golgi body
    D. Lysosome
Show Answer Correct: Option B.
  1. The speed of sound in air at 25 °C is about: A. 332 m/s
    B. 346 m/s
    C. 360 m/s
    D. 380 m/s
Show Answer Correct: Option B.
  1. Which of the following is a non-metal that conducts electricity? A. Phosphorus
    B. Sulphur
    C. Graphite
    D. Diamond
Show Answer Correct: Option C.
  1. The unit of thermal conductivity is: A. W m⁻¹ K⁻¹
    B. J kg⁻¹ K⁻¹
    C. W
    D. J
Show Answer Correct: Option A.
  1. The colour of light which deviates least while passing through a prism is: A. Red
    B. Violet
    C. Yellow
    D. Blue
Show Answer Correct: Option A.
  1. The gas responsible for ripening of fruits is: A. Methane
    B. Ethylene
    C. CO₂
    D. O₂
Show Answer Correct: Option B.
  1. Which part of the brain controls heartbeat? A. Cerebrum
    B. Medulla oblongata
    C. Cerebellum
    D. Hypothalamus
Show Answer Correct: Option B.
  1. The reaction of an acid with a base is called: A. Oxidation
    B. Reduction
    C. Neutralization
    D. Hydrolysis
Show Answer Correct: Option C.
  1. Which of the following has the highest specific heat? A. Water
    B. Copper
    C. Iron
    D. Mercury
Show Answer Correct: Option A.
  1. The element with atomic number 30 is: A. Zinc
    B. Gallium
    C. Copper
    D. Nickel
Show Answer Correct: Option A.
  1. The refractive index of glass with respect to air is approximately: A. 1.33
    B. 1.5
    C. 2.0
    D. 1.0
Show Answer Correct: Option B.
  1. Which vitamin is fat-soluble? A. Vitamin C
    B. Vitamin B₁
    C. Vitamin D
    D. Vitamin B₁₂
Show Answer Correct: Option C.
  1. The pitch of a sound depends on: A. Amplitude
    B. Frequency
    C. Speed
    D. Wavelength
Show Answer Correct: Option B.
  1. Which of the following is NOT a greenhouse gas? A. N₂
    B. N₂O
    C. CH₄
    D. CO₂
Show Answer Correct: Option A.
  1. The device to measure electric current is: A. Voltmeter
    B. Ammeter
    C. Galvanometer
    D. Potentiometer
Show Answer Correct: Option B.
  1. The hardest natural substance is: A. Silicon
    B. Diamond
    C. Quartz
    D. Corundum
Show Answer Correct: Option B.
  1. The value of ‘g’ decreases with: A. Increase in altitude
    B. Increase in depth
    C. Both A and B
    D. None
Show Answer Correct: Option C.
  1. The number of chromosomes in a human sperm is: A. 23
    B. 46
    C. 22
    D. 44
Show Answer Correct: Option A. Haploid.
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