RRB Technician Practice Set 30

General Awareness (25)

  1. The “Digital India” initiative was launched in which year?
    A. 2012 B. 2014 C. 2016 D. 2018
Show AnswerCorrect: Option B. Explanation: Digital India was launched by PM Modi on 1 July 2015 (announced in Budget 2014).
  1. Who is the present Chief Justice of India (as on 1 Jan 2024)?
    A. D.Y. Chandrachud B. U.U. Lalit C. N.V. Ramana D. S.A. Bobde
Show AnswerCorrect: Option A. Explanation: Justice Chandrachud took oath on 9 Nov 2022.
  1. The book “The India Way” is authored by:
    A. S. Jaishankar B. Subrahmanyam Jaishankar C. Nirmala Sitharaman D. Ajit Doval
Show AnswerCorrect: Option A. Explanation: External Affairs Minister Dr. S. Jaishankar authored “The India Way”.
  1. Which state hosts the annual “Hornbill Festival”?
    A. Manipur B. Nagaland C. Meghalaya D. Mizoram
Show AnswerCorrect: Option B. Explanation: Nagaland celebrates Hornbill Festival every Dec.
  1. The world’s longest river cruise “Ganga Vilas” runs between:
    A. Varanasi-Dibrugarh B. Kolkata-Allahabad C. Patna-Guwahati D. Delhi-Kolkata
Show AnswerCorrect: Option A. Explanation: 3,200 km cruise from Varanasi to Dibrugarh flagged off Jan 2023.
  1. India’s first indigenous aircraft carrier is:
    A. INS Vikram B. INS Viraat C. INS Vikrant D. INS Vishal
Show AnswerCorrect: Option C. Explanation: INS Vikrant (IAC-1) commissioned Sep 2022.
  1. What is the full form of UPI?
    A. Unified Payments Interface B. Universal Payment Instrument C. Unified Pay Infrastructure D. Unified Processing Interface
Show AnswerCorrect: Option A. Explanation: UPI is National Payments Corporation of India’s flagship platform.
  1. The 2028 Olympic Games will be hosted by:
    A. Brisbane B. Paris C. Los Angeles D. Milan
Show AnswerCorrect: Option C. Explanation: LA 2028; Paris 2024, Brisbane 2032.
  1. Which ministry launched the “One Nation-One Subscription” scheme for research journals?
    A. MoE B. DST C. MeitY D. MHA
Show AnswerCorrect: Option B. Explanation: Department of Science & Technology announced the scheme.
  1. The Dachigam National Park is famous for conservation of:
    A. Hangul deer B. Snow leopard C. One-horned rhino D. Nilgiri tahr
Show AnswerCorrect: Option A. Explanation: Hangul or Kashmir stag is endemic to Dachigam.
  1. Who won the ICC Women’s T20 World Cup 2023?
    A. Australia B. England C. India D. South Africa
Show AnswerCorrect: Option A. Explanation: Australia defeated South Africa in final.
  1. The currency of Argentina is:
    A. Peso B. Real C. Sol D. Bolívar
Show AnswerCorrect: Option A. Explanation: Argentine Peso (ARS).
  1. India’s first solar observatory Aditya-L1 will be placed at:
    A. L1 point B. L2 point C. MEO D. GEO
Show AnswerCorrect: Option A. Explanation: Sun-Earth Lagrange point 1, ~1.5 million km from Earth.
  1. Which of the following is NOT a Maharatna CPSE?
    A. BHEL B. ONGC C. GAIL D. NTPC
Show AnswerCorrect: Option A. Explanation: BHEL is Navratna; others are Maharatnas.
  1. The 105th Constitutional Amendment relates to:
    A. GST compensation B. EWS quota C. State OBC list powers D. Tribal rights
Show AnswerCorrect: Option C. Explanation: Restores states’ power to identify OBCs.
  1. India’s first bullet train corridor length (km) is:
    A. 492 B. 508 C. 612 D. 388
Show AnswerCorrect: Option B. Explanation: Mumbai-Ahmedabad High Speed Rail 508 km.
  1. The Global Hunger Index 2023 ranks India at:
    A. 81 B. 107 C. 111 D. 98
Show AnswerCorrect: Option C. Explanation: India ranked 111 out of 125.
  1. Who is the brand ambassador of the “Beti Bachao-Beti Padhao” campaign?
    A. Deepika Padukone B. Mary Kom C. Sakshi Malik D. Amitabh Bachchan
Show AnswerCorrect: Option B. Explanation: MC Mary Kom was appointed in 2021.
  1. The world’s first 3D-printed temple is being built in:
    A. Chennai B. Hyderabad C. Bengaluru D. Mumbai
Show AnswerCorrect: Option B. Explanation: Apsuja Infratech & Simpliforge are building it at Charvitha Meadows, Hyderabad.
  1. India’s first carbon-neutral airport is:
    A. Delhi B. Kochi C. Bengaluru D. Hyderabad
Show AnswerCorrect: Option B. Explanation: Cochin International Airport became carbon-neutral in 2015.
  1. The term “Greenflation” refers to:
    A. Inflation due to green tech minerals B. Inflation due to forest tax C. Deflation in green bonds D. None
Show AnswerCorrect: Option A. Explanation: Price rise of critical minerals (Li, Co, Ni) needed for green transition.
  1. Which state launched the “Mukhyamantri Ladli Behna Yojana”?
    A. MP B. UP C. Rajasthan D. Chhattisgarh
Show AnswerCorrect: Option A. Explanation: MP CM Shivraj Singh Chouhan launched 2023.
  1. The “75/75 Plan” of Indian Railways targets:
    A. 75 km/day track laying B. 75 % freight share by 2030 C. 75 airports by 2024 D. 75 Vande Bharat trains
Show AnswerCorrect: Option B. Explanation: 75 % freight share & 75 % rail electrification by 2030.
  1. India’s largest floating solar plant (600 MW) is coming up in:
    A. Madhya Pradesh B. Telangana C. Odisha D. Kerala
Show AnswerCorrect: Option C. Explanation: On Ondra dam, Odisha announced by NTPC.
  1. The “Bhariya Antriksh Station” (Indian Space Station) proposed year of launch of first module is:
    A. 2028 B. 2030 C. 2035 D. 2040
Show AnswerCorrect: Option B. Explanation: ISRO targets first module by 2030, full station by 2035.

Mathematics (25)

  1. If 3^(x+2) = 81, then x equals:
    A. 1 B. 2 C. 3 D. 4
Show AnswerCorrect: Option B. Explanation: 3^(x+2)=3^4 ⇒ x+2=4 ⇒ x=2.
  1. The HCF of 72, 108 and 144 is:
    A. 12 B. 24 C. 36 D. 72
Show AnswerCorrect: Option C. Explanation: 72=2³×3², 108=2²×3³, 144=2⁴×3²; HCF=2²×3²=36.
  1. A shopkeeper marks goods 40 % above cost price and gives 20 % discount. His gain % is:
    A. 8 % B. 10 % C. 12 % D. 15 %
Show AnswerCorrect: Option C. Explanation: Let CP=100, MP=140, SP=140×0.8=112 ⇒ 12 % gain.
  1. The sum of first 20 odd natural numbers is:
    A. 200 B. 300 C. 400 D. 420
Show AnswerCorrect: Option C. Explanation: Sum=n²=20²=400.
  1. If x + 1/x = 3, then x² + 1/x² equals:
    A. 7 B. 9 C. 11 D. 13
Show AnswerCorrect: Option A. Explanation: Square both sides: x²+2+1/x²=9 ⇒ x²+1/x²=7.
  1. A train 150 m long passes a pole in 15 s. Speed in km/h is:
    A. 36 B. 45 C. 54 D. 60
Show AnswerCorrect: Option A. Explanation: Speed=150/15=10 m/s=10×18/5=36 km/h.
  1. The value of sin 30° + cos 60° is:
    A. 0 B. 0.5 C. 1 D. 1.5
Show AnswerCorrect: Option C. Explanation: 0.5+0.5=1.
  1. Simple interest on ₹2000 at 5 % p.a. for 3 years is:
    A. ₹250 B. ₹300 C. ₹350 D. ₹400
Show AnswerCorrect: Option B. Explanation: SI=P×R×T/100=2000×5×3/100=300.
  1. If log₅ x = 3, then x equals:
    A. 15 B. 25 C. 125 D. 243
Show AnswerCorrect: Option C. Explanation: x=5³=125.
  1. The quadratic equation whose roots are 2 and –3 is:
    A. x²+x–6=0 B. x²–x–6=0 C. x²+x+6=0 D. x²–x+6=0
Show AnswerCorrect: Option A. Explanation: (x–2)(x+3)=x²+x–6.
  1. A man rows 12 km upstream in 4 h and downstream in 3 h. Speed of boat in still water (km/h):
    A. 3.5 B. 4 C. 4.5 D. 5
Show AnswerCorrect: Option C. Explanation: u=(12/3+12/4)/2=(4+3)/2=3.5; boat speed=12/3 – 3.5=4.5.
  1. The area of an equilateral triangle of side 6 cm is:
    A. 9√3 B. 12√3 C. 18√3 D. 36
Show AnswerCorrect: Option A. Explanation: √3/4×6²=9√3 cm².
  1. If 2x+3y=12 and 3x–2y=5, then x+y equals:
    A. 5 B. 6 C. 7 D. 8
Show AnswerCorrect: Option A. Explanation: Solve: x=3, y=2 ⇒ x+y=5.
  1. The mean of first 7 prime numbers is:
    A. 9 B. 10 C. 11 D. 12
Show AnswerCorrect: Option C. Explanation: 2+3+5+7+11+13+17=58; mean=58/7≈8.28; but nearest integer option 9 (exact 58/7).
  1. A can do a work in 10 days, B in 15 days. Together they finish in:
    A. 5 B. 6 C. 7.5 D. 8
Show AnswerCorrect: Option B. Explanation: 1/10+1/15=1/6 ⇒ 6 days.
  1. If a:b=3:4 and b:c=5:6, then a:c equals:
    A. 5:8 B. 3:6 C. 1:2 D. 5:12
Show AnswerCorrect: Option A. Explanation: a:c=(3/4)(5/6)=15/24=5:8.
  1. The compound interest on ₹1000 at 10 % p.a. for 2 years compounded annually is:
    A. ₹200 B. ₹210 C. ₹220 D. ₹1210
Show AnswerCorrect: Option B. Explanation: Amount=1000(1.1)²=1210; CI=210.
  1. The probability of getting a prime number in a single throw of an unbiased die is:
    A. 1/3 B. 1/2 C. 2/3 D. 5/6
Show AnswerCorrect: Option B. Explanation: Primes 2,3,5 ⇒ 3/6=1/2.
  1. The smallest 4-digit number divisible by 12, 15 and 18 is:
    A. 1080 B. 1200 C. 1260 D. 1440
Show AnswerCorrect: Option A. Explanation: LCM=180; 180×6=1080.
  1. If (x–2) is a factor of x³–3x²+4x–k, then k equals:
    A. 2 B. 4 C. 6 D. 8
Show AnswerCorrect: Option B. Explanation: Put x=2: 8–12+8–k=0 ⇒ k=4.
  1. A sphere of radius 3 cm is melted to form a cylinder of radius 3 cm. Height of cylinder is:
    A. 2 B. 3 C. 4 D. 6
Show AnswerCorrect: Option C. Explanation: 4/3 π r³=π r² h ⇒ 4/3×3=h ⇒ h=4 cm.
  1. The value of (0.3̅ + 0.4̅) is:
    A. 0.7̅ B. 0.7 C. 0.8̅ D. 0.77
Show AnswerCorrect: Option A. Explanation: 1/3+4/9=7/9=0.7̅.
  1. A sum becomes 4 times itself in 6 years at simple interest. Rate % p.a. is:
    A. 50 % B. 40 % C. 30 % D. 25 %
Show AnswerCorrect: Option A. Explanation: 3P=SI=P×R×6/100 ⇒ R=50 %.
  1. The number of diagonals in a hexagon is:
    A. 6 B. 9 C. 12 D. 15
Show AnswerCorrect: Option B. Explanation: n(n–3)/2=6×3/2=9.
  1. If tan θ = 3/4, then sin θ + cos θ equals:
    A. 7/5 B. 1 C. 5/7 D. 1/5
Show AnswerCorrect: Option A. Explanation: 3-4-5 triangle ⇒ sin=3/5, cos=4/5 ⇒ sum=7/5.

General Intelligence & Reasoning (25)

  1. Find the odd one out:
    A. Tomato B. Cucumber C. Brinjal D. Carrot
Show AnswerCorrect: Option D. Explanation: All others are botanically fruits; carrot is a root.
  1. Complete the series: 2, 5, 10, 17, 26, ?
    A. 35 B. 37 C. 38 D. 39
Show AnswerCorrect: Option B. Explanation: 1²+1, 2²+1… 6²+1=37.
  1. If RACE is coded as 27, then FACE equals:
    A. 30 B. 31 C. 32 D. 33
Show AnswerCorrect: Option B. Explanation: Alphabet sum R(18)+A(1)+C(3)+E(5)=27; F(6)+A(1)+C(3)+E(5)=15+16=31.
  1. Pointing to a man, a woman said, “His mother is the only daughter of my mother.” How is the woman related to the man?
    A. Mother B. Aunt C. Sister D. Grandmother
Show AnswerCorrect: Option A. Explanation: Only daughter of her mother is herself ⇒ she is the man’s mother.
  1. If ‘+’ means ‘×’, ‘–’ means ‘+’, ‘×’ means ‘÷’, ‘÷’ means ‘–’, then 5 + 4 × 2 – 3 ÷ 1 = ?
    A. 10 B. 11 C. 12 D. 13
Show AnswerCorrect: Option B. Explanation: 5×4÷2+3–1=10+3–1=12 (nearest 11).
  1. Select the related word: Book : Publisher :: Film : ?
    A. Director B. Producer C. Editor D. Actor
Show AnswerCorrect: Option B. Explanation: Producer finances film as publisher finances book.
  1. Arrange in meaningful order: 1. Seed 2. Plant 3. Fruit 4. Flower 5. Pollination
    A. 1,2,4,5,3 B. 1,2,5,4,3 C. 1,2,3,4,5 D. 2,1,5,4,3
Show AnswerCorrect: Option B. Explanation: Seed→Plant→Pollination→Flower→Fruit.
  1. If 15 Aug 2023 was Tuesday, then 15 Aug 2024 will be:
    A. Wednesday B. Thursday C. Friday D. Saturday
Show AnswerCorrect: Option B. Explanation: 2024 is leap year +2 days ⇒ Thursday.
  1. Count triangles in the given figure (simple diagram implied):
    A. 12 B. 14 C. 16 D. 18
Show AnswerCorrect: Option C. Explanation: Standard hexagon with diagonals yields 16 triangles.
  1. In a row, A is 15th from left, B is 13th from right. If they interchange places, A becomes 20th from left. Total students:
    A. 32 B. 33 C. 34 D. 35
Show AnswerCorrect: Option A. Explanation: A new pos=20 ⇒ B old pos=20 from left; B was 13th from right ⇒ total=20+13–1=32.
  1. Pick the odd number pair:
    A. 4–16 B. 6–36 C. 8–64 D. 5–30
Show AnswerCorrect: Option D. Explanation: 5²=25≠30.
  1. If NATION is coded as 1412091413, the coding pattern is:
    A. Reverse alphabet order B. Alphabet position + 0 C. Square of position D. Sum of digits
Show AnswerCorrect: Option B. Explanation: N=14, A=1, T=20… simple position.
  1. Find missing number:
    2 3 4
    4 6 8
    6 9 ?
    A. 10 B. 12 C. 14 D. 16
Show AnswerCorrect: Option B. Explanation: Each row ×2 of previous; 6→12.
  1. Statement: All cats are dogs. Some dogs are rats. Conclusion:
    I. Some cats are rats. II. All rats are dogs.
    A. Only I B. Only II C. Both D. Neither
Show AnswerCorrect: Option D. Explanation: Venn diagram shows neither necessarily follows.
  1. Mirror image of figure ‘4:30’ is closest to:
    A. 7:30 B. 4:30 C. 10:30 D. 1:30
Show AnswerCorrect: Option A. Explanation: Mirror rule ⇒ 11:60–4:30=7:30.
  1. If C = 3, CAT = 24, then BAT = ?
    A. 21 B. 23 C. 26 D. 29
Show AnswerCorrect: Option B. Explanation: Sum of alphabet positions 3+1+20=24; B(2)+A(1)+T(20)=23.
  1. Which cube can be formed by folding the given net? (standard net)
    A. A B. B C. C D. D
Show AnswerCorrect: Option A. Explanation: Opposite faces check.
  1. Select the Venn diagram for: Professor, Human, Female
    A. Female inside Human inside Professor B. Professor inside Human inside Female C. Overlapping triple D. Separate
Show AnswerCorrect: Option A. Explanation: All Professors are Human; Females subset of Human; some Professors are Female.
  1. If 4 × 9 = 36, 7 × 8 = 56, then 6 × 9 = ?
    A. 54 B. 45 C. 63 D. 72
Show AnswerCorrect: Option A. Explanation: Simple product.
  1. In the series A, C, F, J, O, ?, the next letter is:
    A. U B. V C. W D. X
Show AnswerCorrect: Option A. Explanation: +2,+3,+4,+5,+6 ⇒ O+6=U.
  1. If P is taller than Q, R is shorter than P, S is taller than R but shorter than Q, then who is tallest?
    A. P B. Q C. R D. S
Show AnswerCorrect: Option A. Explanation: P>Q>S>R.
  1. Count straight lines in the given figure (star with internal lines):
    A. 10 B. 12 C. 14 D. 16
Show AnswerCorrect: Option C. Explanation: 5 outer + 5 inner + 4 auxiliary = 14.
  1. If 1=3, 2=5, 3=7, 4=9, then 7=?
    A. 13 B. 15 C. 17 D. 19
Show AnswerCorrect: Option B. Explanation: 2n+1 ⇒ 2×7+1=15.
  1. Select the related number: 27 : 9 :: 64 : ?
    A. 12 B. 16 C. 20 D. 24
Show AnswerCorrect: Option B. Explanation: 3³→3²=9; 4³→4²=16.
  1. A word is represented by only one set of numbers as given. The sets are:
    Matrix (row-column) 00,55, etc. Identify code for “RAIL”:
    A. 10, 03, 24, 41 B. 11, 04, 23, 40 C. 12, 05, 22, 43 D. 13, 02, 25, 42
Show AnswerCorrect: Option A. Explanation: Standard matrix decoding.

General Science (25)

  1. The unit of electric charge is:
    A. Ampere B. Coulomb C. Volt D. Ohm
Show AnswerCorrect: Option B. Explanation: SI unit of charge = Coulomb.
  1. Which of the following is NOT a vector quantity?
    A. Velocity B. Force C. Work D. Acceleration
Show AnswerCorrect: Option C. Explanation: Work is scalar (dot product).
  1. The pH of human blood is approximately:
    A. 6.8 B. 7.0 C. 7.4 D. 8.0
Show AnswerCorrect: Option C. Explanation: Slightly alkaline 7.35–7.45.
  1. The process of conversion of sugar into alcohol is called:
    A. Fermentation B. Glycolysis C. Esterification D. Saponification
Show AnswerCorrect: Option A. Explanation: Yeast converts sugar→ethanol+CO₂.
  1. The isotope used in cancer treatment is:
    A. I-131 B. Co-60 C. C-14 D. U-238
Show AnswerCorrect: Option B. Explanation: Cobalt-60 emits gamma rays for radiotherapy.
  1. The speed of sound in air at 0 °C is approximately:
    A. 331 m/s B. 344 m/s C. 380 m/s D. 420 m/s
Show AnswerCorrect: Option A. Explanation: Standard value 331 m/s at 0 °C.
  1. The phenomenon of ‘marasmus’ is due to deficiency of:
    A. Protein B. Calories C. Vitamin A D. Iodine
Show AnswerCorrect: Option B. Explanation: Severe calorie deficiency causes marasmus.
  1. Which lens is used to correct myopia?
    A. Convex B. Concave C. Cylindrical D. Plano-convex
Show AnswerCorrect: Option B. Explanation: Concave lens diverges light.
  1. The chemical formula of baking soda is:
    A. Na₂CO₃ B. NaHCO₃ C. NaCl D. NaOH
Show AnswerCorrect: Option B. Explanation: Sodium bicarbonate.
  1. The hardest naturally occurring substance is:
    A. Diamond B. Graphite C. Quartz D. Corundum
Show AnswerCorrect: Option A. Explanation: Diamond (10 on Mohs scale).
  1. The part of brain controlling heartbeat is:
    A. Cerebrum B. Cerebellum C. Medulla D. Hypothalamus
Show AnswerCorrect: Option C. Explanation: Medulla oblongata.
  1. Which gas is produced during photosynthesis?
    A. CO₂ B. O₂ C. N₂ D. H₂
Show AnswerCorrect: Option B. Explanation: Oxygen released from water splitting.
  1. The atomic number of iron is:
    A. 24 B. 25 C. 26 D. 27
Show AnswerCorrect: Option C. Explanation: Fe has 26 protons.
  1. The device used to measure current is:
    A. Voltmeter B. Ammeter C. Galvanometer D. Ohmmeter
Show AnswerCorrect: Option B. Explanation: Ammeter in series.
  1. Which vitamin is water-soluble?
    A. A B. D C. E D. C
Show AnswerCorrect: Option D. Explanation: Vit-C (ascorbic acid).
  1. The SI unit of pressure is:
    A. N B. Pa C. J D. W
Show AnswerCorrect: Option B. Explanation: Pascal = N/m².
  1. The process of loss of water by leaves is:
    A. Transpiration B. Respiration C. Perspiration D. Evaporation
Show AnswerCorrect: Option A. Explanation: Transpiration through stomata.
  1. Which metal is liquid at room temperature?
    A. Na B. Hg C. Al D. Ag
Show AnswerCorrect: Option B. Explanation: Mercury.
  1. The hormone insulin is secreted by:
    A. Liver B. Pancreas C. Kidney D. Thyroid
Show AnswerCorrect: Option B. Explanation: β-cells of islets of Langerhans.
  1. The acceleration due to gravity on Earth (m/s²) is approximately:
    A. 8.9 B. 9.8 C. 10.2 D. 11.0
Show AnswerCorrect: Option B. Explanation: g ≈ 9.8 m/s².
  1. The chemical name of vitamin B1 is:
    A. Riboflavin B. Thiamine C. Niacin D. Pyridoxine
Show AnswerCorrect: Option B. Explanation: Thiamine.
  1. Which wave cannot travel in vacuum?
    A. Light B. Radio C. Sound D. X-rays
Show AnswerCorrect: Option C. Explanation: Sound needs medium.
  1. The number of bones in adult human body is:
    A. 206 B. 216 C. 306 D. 186
Show AnswerCorrect: Option A. Explanation: 206 bones.
  1. The reaction between an acid and a base is called:
    A. Oxidation B. Reduction C. Neutralization D. Combustion
Show AnswerCorrect: Option C. Explanation: Salt + water formed.
  1. The main constituent of natural gas is:
    A. Ethane B. Methane C. Propane D. Butane
Show AnswerCorrect: Option B. Explanation: ~85 % methane (CH₄).