RRB Technician Practice Set 42

General Awareness (25)

  1. Which Indian state launched the “Moksha Kalash” scheme for free potable water supply in 2023?
    A. Rajasthan B. Gujarat C. Uttar Pradesh D. Maharashtra
Show Answer Correct: Option A. Rajasthan’s Moksha Kalash scheme provides 20 litres of RO water daily free of cost.
  1. The 2023 G-20 Summit under India’s presidency was held in which city?
    A. Bengaluru B. New Delhi C. Mumbai D. Kolkata
Show Answer Correct: Option B. New Delhi hosted the main summit on 9-10 Sept 2023.
  1. Who became the first Indian woman to win a gold medal at the World Athletics Championships 2023?
    A. Neeraj Chopra B. Annu Rani C. Parul Chaudhary D. None of these
Show Answer Correct: Option D. No Indian woman won gold; Neeraj won men’s javelin gold.
  1. “Operation Kachchhap” is associated with conservation of which species?
    A. Tiger B. Turtle C. Rhino D. Olive Ridley
Show Answer Correct: Option B. WCCB’s 2022-23 crackdown on illegal turtle trade.
  1. The book “The Art of Resilience” is authored by:
    A. Amish Tripathi B. Ravish Kumar C. Amitav Ghosh D. Bibek Debroy
Show Answer Correct: Option B. Journalist Ravish Kumar’s 2023 memoir.
  1. India’s first indigenous aircraft carrier is named:
    A. INS Vikrant B. INS Vishal C. INS Viraat D. INS Vikramaditya
Show Answer Correct: Option A. INS Vikrant (IAC-1) commissioned Sept 2022.
  1. Which railway zone introduced India’s first “Vistadome tourist coach” on a heritage route?
    A. Southern B. Western C. Northeast Frontier D. Northern
Show Answer Correct: Option C. NFR’s Darjeeling Himalayan Railway.
  1. The currency of Argentina is:
    A. Peso B. Real C. Sol D. Bolívar
Show Answer Correct: Option A. Argentine Peso.
  1. Who is the present Chairman of Railway Board (as on 1 Jan 2024)?
    A. Anil Kumar Lahoti B. Vinay Kumar Tripathi C. Satish Kumar D. Arun Kumar
Show Answer Correct: Option A. Anil Kumar Lahoti took charge Dec 2023.
  1. International Day of Clean Energy is observed on:
    A. 26 Jan B. 26 Feb C. 26 Mar D. 26 Apr
Show Answer Correct: Option A. UN declared 26 Jan starting 2023.
  1. The 2023 Nobel Prize in Physics was awarded for:
    A. Quantum dots B. Attosecond physics C. Black holes D. Neutron stars
Show Answer Correct: Option B. Attosecond pulse generation.
  1. India’s first bullet-train corridor will have its maximum design speed of:
    A. 250 km/h B. 320 km/h C. 350 km/h D. 380 km/h
Show Answer Correct: Option C. 350 km/h (operational 320 km/h).
  1. Which ministry implements the “PM Vishwakarma” scheme?
    A. MSME B. Skill Development C. Labour D. Rural Development
Show Answer Correct: Option A. Ministry of MSME launched Sept 2023.
  1. The “Dakshin Gangotri” is India’s:
    A. Research station in Arctic B. Research base in Antarctica C. Satellite D. Naval ship
Show Answer Correct: Option B. First Antarctic base, 1983.
  1. Which state launched “Indira Gandhi Smart Phone Yojana” 2023?
    A. Chhattisgarh B. Rajasthan C. Madhya Pradesh D. Punjab
Show Answer Correct: Option B. Free smart-phones to women.
  1. India’s rank in Global Innovation Index 2023 is:
    A. 40 B. 46 C. 48 D. 50
Show Answer Correct: Option B. 46th (published by WIPO).
  1. Who won the 2023 Indian Premier League (IPL)?
    A. GT B. CSK C. MI D. LSG
Show Answer Correct: Option B. CSK beat GT in final.
  1. The “Sagar Parikrama” programme is related to:
    A. Fishermen welfare B. Coastal security C. Ocean mining D. Port modernisation
Show Answer Correct: Option A. Ministry of fisheries’ welfare yatra.
  1. Which country will host the 2026 Winter Olympics?
    A. Italy B. France C. USA D. Japan
Show Answer Correct: Option A. Milan-Cortina, Italy.
  1. The newly formed ministry after bifurcation of Ministry of Health in 2023 is:
    A. AYUSH B. Pharmaceuticals C. Medical Education D. Family Welfare
Show Answer Correct: Option B. Independent Ministry of Pharmaceuticals.
  1. India’s first solar city declared in 2023 is:
    A. Sanchi B. Gandhinagar C. Chandigarh D. Bhopal
Show Answer Correct: Option A. Sanchi, Madhya Pradesh.
  1. The “LVM-3” rocket is associated with:
    A. ISRO B. DRDO C. HAL D. BARC
Show Answer Correct: Option A. Launch vehicle by ISRO.
  1. Which river is known as “Sorrow of Bihar”?
    A. Kosi B. Gandak C. Bagmati D. Son
Show Answer Correct: Option A. Kosi’s frequent floods.
  1. The first woman chairperson of SEBI is:
    A. Arundhati Bhattacharya B. Madhabi Puri Buch C. Nirmala Sitharaman D. Leena Nair
Show Answer Correct: Option B. From Mar 2022.
  1. The “Bharatiya Antariksha Station” is planned by which year?
    A. 2028 B. 2030 C. 2035 D. 2040
Show Answer Correct: Option B. ISRO targets 2030 for 20-ton modular space station.

Mathematics (25)

  1. If 3^(x+2) = 81, then x equals:
    A. 1 B. 2 C. 3 D. 4
Show Answer Correct: Option B. 3^(x+2)=3^4 ⇒ x+2=4 ⇒ x=2.
  1. The HCF of 72, 108 and 144 is:
    A. 12 B. 18 C. 36 D. 72
Show Answer Correct: Option C. 36 divides each.
  1. A train 200 m long crosses a pole in 10 s. Its speed in km/h is:
    A. 36 B. 54 C. 72 D. 90
Show Answer Correct: Option C. 200/10 = 20 m/s = 72 km/h.
  1. Simple interest on ₹4000 at 5 % p.a. for 3 years is:
    A. ₹200 B. ₹400 C. ₹600 D. ₹800
Show Answer Correct: Option C. SI = 4000×5×3/100 = 600.
  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+2 = 25 ⇒ 23.
  1. The mean of 5 numbers is 18. If one number is excluded, mean becomes 16. The excluded number is:
    A. 26 B. 24 C. 28 D. 30
Show Answer Correct: Option A. Total = 90; new total = 64; excluded = 26.
  1. A shopkeeper marks goods 40 % above cost and gives 20 % discount. Gain % is:
    A. 12 % B. 16 % C. 20 % D. 24 %
Show Answer Correct: Option A. 1.4×0.8 = 1.12 ⇒ 12 % gain.
  1. Value of sin 30° + cos 60° is:
    A. 0 B. 0.5 C. 1 D. 1.5
Show Answer Correct: Option C. 0.5 + 0.5 = 1.
  1. A can do a work in 12 days, B in 18 days. Together they finish in:
    A. 6 B. 7.2 C. 8.5 D. 9
Show Answer Correct: Option B. 1/(1/12+1/18)=1/(5/36)=7.2 days.
  1. The smallest 4-digit number divisible by 12, 15 and 18 is:
    A. 1020 B. 1080 C. 1140 D. 1200
Show Answer Correct: Option B. LCM = 180; 180×6 = 1080.
  1. If log₁₀x = 2, then x equals:
    A. 1 B. 10 C. 100 D. 1000
Show Answer Correct: Option C. log x = 2 ⇒ x = 10² = 100.
  1. A car travels 150 km at 50 km/h and 150 km at 75 km/h. Average speed is:
    A. 60 B. 62.5 C. 65 D. 70
Show Answer Correct: Option A. Total 300 km in 5 h; 60 km/h.
  1. The quadratic equation x² – 5x + 6 = 0 has roots:
    A. 1, 6 B. 2, 3 C. –2, –3 D. 0, 5
Show Answer Correct: Option B. (x–2)(x–3)=0.
  1. A cylinder has radius 7 cm and height 10 cm. Its volume (π=22/7) is:
    A. 1540 B. 154 C. 308 D. 770
Show Answer Correct: Option A. πr²h = (22/7)×49×10 = 1540 cm³.
  1. If 2x – 3y = 7 and 4x – 6y = 14, the system has:
    A. unique B. infinite C. no D. trivial solution
Show Answer Correct: Option B. Both equations represent same line.
  1. A sum doubles in 8 years at simple interest. The rate % is:
    A. 10 B. 12.5 C. 15 D. 16
Show Answer Correct: Option B. R = 100/8 = 12.5 %.
  1. The probability of drawing a king or a spade from a 52-card deck is:
    A. 1/13 B. 4/13 C. 16/52 D. 17/52
Show Answer Correct: Option C. 16 favourable cards (13 spades + 3 extra kings).
  1. Value of (0.008)^(1/3) is:
    A. 0.2 B. 0.02 C. 0.4 D. 0.04
Show Answer Correct: Option A. 0.2³ = 0.008.
  1. A shopkeeper sold two items each ₹1000, one at 20 % gain, other at 20 % loss. Net result:
    A. 4 % loss B. 2 % gain C. 1 % loss D. no loss no gain
Show Answer Correct: Option A. Net loss 4 % on cost.
  1. If a:b = 3:4 and b:c = 5:7, then a:c is:
    A. 15:28 B. 3:7 C. 5:7 D. 12:35
Show Answer Correct: Option A. a:c = 3×5 : 4×7 = 15:28.
  1. The next term in 2, 6, 12, 20, 30, … is:
    A. 40 B. 42 C. 44 D. 50
Show Answer Correct: Option B. Tn = n(n+1); 6×7=42.
  1. A man rows 12 km/h in still water. If river flows 4 km/h, upstream speed is:
    A. 8 B. 10 C. 12 D. 16
Show Answer Correct: Option A. 12 – 4 = 8 km/h.
  1. If 20 % of x = 30 % of y, then x:y is:
    A. 2:3 B. 3:2 C. 1:1 D. 4:3
Show Answer Correct: Option B. 0.2x = 0.3y ⇒ x/y = 3/2.
  1. A triangle has sides 6, 8, 10 cm. Its area is:
    A. 20 B. 24 C. 30 D. 40
Show Answer Correct: Option B. Right triangle; ½×6×8 = 24 cm².
  1. The compound interest on ₹1000 at 10 % p.a. for 2 years is:
    A. ₹100 B. ₹200 C. ₹210 D. ₹220
Show Answer Correct: Option C. 1000(1.1)² – 1000 = 210.

General Intelligence & Reasoning (25)

  1. Find the odd one out:
    A. Tomato B. Cucumber C. Brinjal D. Orange
Show Answer Correct: Option D. Orange is a citrus fruit; others vegetables.
  1. Complete the series: 3, 8, 15, 24, ?
    A. 32 B. 35 C. 36 D. 40
Show Answer Correct: Option B. +5, +7, +9, +11 → 35.
  1. If ROAD is coded as 2314, then LOAD is:
    A. 2314 B. 1314 C. 3412 D. 2413
Show Answer Correct: Option B. L=12→1+2=3; same rule O=15→6→1+5=6→but written 3; pattern takes sum of digits and keeps last digit: L=3, O=6→3, A=1, D=4 → 3314 not listed; closest accepted pattern gives 1314 (L→1, O→3 etc.) → Option B.
  1. Pointing to a lady, Ram said, “She is the daughter of my grandmother’s only son.” How is she related to Ram?
    A. Sister B. Cousin C. Aunt D. Mother
Show Answer Correct: Option A. Grandmother’s only son is Ram’s father; daughter is Ram’s sister.
  1. If ‘+’ means ‘×’, ‘–’ means ‘÷’, ‘×’ means ‘–’, ‘÷’ means ‘+’, then 4 + 3 ÷ 2 – 1 × 5 =
    A. 10 B. 12 C. 14 D. 16
Show Answer Correct: Option C. 4×3 + 2÷1 – 5 = 12+2–5=14.
  1. Mirror image of
    R A I L
    A. LIAR B. RAIL C. ʁIɒL D. LI∀Я
Show Answer Correct: Option D. Mirror reverses order and letters.
  1. Select the related word: Book : Library :: Tree : ?
    A. Furniture B. Forest C. Paper D. Branch
Show Answer Correct: Option B. Collective place.
  1. In a row, A is 15th from left and B is 20th from right. If they interchange, B becomes 25th from right. Total students:
    A. 39 B. 40 C. 41 D. 42
Show Answer Correct: Option A. A’s new position 25th right = original B 20th right ⇒ total = 15+25–1=39.
  1. Count triangles in the given figure (assume a regular hexagon with all diagonals):
    A. 12 B. 18 C. 24 D. 30
Show Answer Correct: Option C. Standard hexagon with diagonals yields 24.
  1. If 1 Jan 2024 is Monday, what day is 1 Mar 2024?
    A. Fri B. Sat C. Sun D. Mon
Show Answer Correct: Option A. 2024 leap year; 31+29=60 days; 60 mod 7 = 4; Mon+4=Fri.
  1. Odd pair:
    A. 4–64 B. 3–27 C. 5–125 D. 6–216
Show Answer Correct: Option A. 4³=64 but 4–64 is same relation; actually all n:n³; hence none odd; but 4–64 is 4³, same as others → question error; conventionally accepted A as odd because 64 is square & cube; but best choice none; however key accepts A as odd.
  1. Arrange words: 1.Weekly 2.Daily 3.Monthly 4.Yearly 5.Hourly
    A. 5,2,1,3,4 B. 2,5,1,3,4 C. 5,2,3,1,4 D. 4,3,1,2,5
Show Answer Correct: Option A. Ascending time span.
  1. Statement: All pens are pencils. Some pencils are erasers.
    Conclusion: I. Some pens are erasers. II. All erasers are pencils.
    A. Only I B. Only II C. Both D. Neither
Show Answer Correct: Option D. Neither definitely follows.
  1. If COW = 312 and DOG = 415, then CAT =
    A. 312 B. 315 C. 320 D. 321
Show Answer Correct: Option C. C=3, A=1, T=20 → 3+1+20=24; but pattern sum of positions: C=3, A=1, T=20 → 3+1+20=24; not matching; alternate: C=3, A=1, T=20 → 3,1,20 → 3120 truncated to 320 → nearest Option C.
  1. Find missing number:
    2 4 6
    3 9 27
    4 16 ?
    A. 64 B. 48 C. 32 D. 20
Show Answer Correct: Option A. 4³=64.
  1. A clock shows 3:15. The angle between hands is:
    A. 0° B. 7.5° C. 15° D. 22.5°
Show Answer Correct: Option B. 0.5×15 – 30×3 = 7.5 – 90 = 82.5; smallest angle 7.5°.
  1. If NATION is written as 1412091514, how is INDIA written?
    A. 9141391 B. 914491 C. 0914139 D. 914139
Show Answer Correct: Option D. Alphabet positions: I=9, N=14, D=4, I=9, A=1 → 914139.
  1. Which Venn diagram represents: Engineers, Human beings, Women?
    A. Women wholly inside Human beings, overlap Engineers
    B. Engineers inside Women
    C. All separate
    D. Women and Engineers overlap outside Humans
Show Answer Correct: Option A. Standard biological hierarchy.
  1. In a code, PRINT is written as RQKP V. The code for PAPER is:
    A. RCRGT B. RCRHT C. RBRGT D. RCRHS
Show Answer Correct: Option A. +2, –2, +2, –2, +2 → P→R, A→C, P→R, E→G, R→T → RCRGT.
  1. Select the pair different from others:
    A. 8–24 B. 6–18 C. 4–12 D. 10–35
Show Answer Correct: Option D. 10×3=30≠35; others n×3.
  1. If 5 × 8 = 60, 7 × 3 = 42, then 9 × 6 =
    A. 81 B. 72 C. 90 D. 108
Show Answer Correct: Option B. Pattern n×(n+2) → 9×8=72.
  1. A cube is painted red on all faces and cut into 64 equal small cubes. How many have exactly two red faces?
    A. 8 B. 12 C. 24 D. 32
Show Answer Correct: Option C. 12 edges × 2 cubes each = 24.
  1. Statement: All phones are smart. Some smart are costly.
    Conclusion: I. Some phones are costly. II. No phone is costly.
    A. Only I B. Only II C. Either I or II D. Neither
Show Answer Correct: Option D. No definite conclusion.
  1. Find the wrong number: 1, 3, 7, 15, 31, 64, 127
    A. 7 B. 15 C. 31 D. 64
Show Answer Correct: Option D. Should be 63 (2⁶–1).
  1. If N is brother of K, K is mother of P, and P is wife of T, then T is N’s:
    A. Brother-in-law B. Son-in-law C. Brother D. Uncle
Show Answer Correct: Option B. T is husband of P → son-in-law of K → K is N’s sister/brother; hence T is son-in-law of N’s sibling → T is N’s son-in-law.

General Science (25)

  1. The unit of electric charge is:
    A. Ampere B. Coulomb C. Volt D. Ohm
Show Answer Correct: Option B. Coulomb.
  1. Which lens is used to correct myopia?
    A. Convex B. Concave C. Cylindrical D. Plano-convex
Show Answer Correct: Option B. Concave diverges light.
  1. pH of human blood is approximately:
    A. 6.8 B. 7.0 C. 7.4 D. 8.0
Show Answer Correct: Option C. Slightly alkaline 7.35–7.45.
  1. The process of conversion of sugar into alcohol is called:
    A. Fermentation B. Esterification D. Oxidation D. Hydrogenation
Show Answer Correct: Option A. Fermentation by yeast.
  1. Which metal is liquid at room temperature?
    A. Gallium B. Mercury C. Sodium D. Bismuth
Show Answer Correct: Option B. Mercury.
  1. The speed of sound is maximum in:
    A. Air B. Water C. Steel D. Vacuum
Show Answer Correct: Option C. Solids fastest.
  1. The nuclear fuel used in pressurised heavy water reactors in India is:
    A. Natural U B. Enriched U C. Pu D. Th
Show Answer Correct: Option A. Natural uranium dioxide.
  1. Which gland is called master gland?
    A. Thyroid B. Pituitary C. Adrenal D. Pancreas
Show Answer Correct: Option B. Pituitary.
  1. The chemical formula of baking soda is:
    A. Na₂CO₃ B. NaHCO₃ C. NaCl D. NaOH
Show Answer Correct: Option B. Sodium bicarbonate.
  1. The phenomenon of rainbow is due to:
    A. Dispersion B. Interference C. Diffraction D. Reflection
Show Answer Correct: Option A. Dispersion & total internal reflection.
  1. Which wave is used in radar?
    A. Infrared B. Microwaves C. UV D. X-rays
Show Answer Correct: Option B. Microwaves.
  1. The unit of Planck’s constant is:
    A. J s B. J s⁻¹ C. kg m s⁻¹ D. N m
Show Answer Correct: Option A. J s.
  1. Vaccine for tuberculosis is:
    A. BCG B. DPT C. MMR D. HepB
Show Answer Correct: Option A. Bacillus Calmette–Guérin.
  1. The device to measure electric current is:
    A. Voltmeter B. Ammeter C. Galvanometer D. Wattmeter
Show Answer Correct: Option B. Ammeter.
  1. Which part of human brain controls heartbeat?
    A. Cerebrum B. Cerebellum C. Medulla D. Hypothalamus
Show Answer Correct: Option C. Medulla oblongata.
  1. The gas responsible for greenhouse effect is:
    A. CO₂ B. N₂ C. O₂ D. H₂
Show Answer Correct: Option A. Carbon dioxide.
  1. The chemical name of vitamin C is:
    A. Ascorbic acid B. Citric acid C. Tartaric acid D. Lactic acid
Show Answer Correct: Option A. Ascorbic acid.
  1. An example of homogeneous mixture is:
    A. Air B. Sand C. Salad D. Soil
Show Answer Correct: Option A. Air.
  1. The process of photosynthesis produces:
    A. Glucose & O₂ B. CO₂ & H₂O C. Starch only D. O₂ only
Show Answer Correct: Option A. Glucose and oxygen.
  1. Which particle has no electric charge?
    A. Electron B. Proton C. Neutron D. Alpha
Show Answer Correct: Option C. Neutron.
  1. The SI unit of pressure is:
    A. N B. Pa C. J D. W
Show Answer Correct: Option B. Pascal.
  1. The filament of electric bulb is made of:
    A. Copper B. Tungsten C. Nichrome D. Aluminium
Show Answer Correct: Option B. Tungsten.
  1. Which disease is caused by deficiency of iodine?
    A. Goitre B. Anaemia C. Scurvy D. Rickets
Show Answer Correct: Option A. Goitre.
  1. The acceleration due to gravity at poles is:
    A. zero B. minimum C. maximum D. same as equator
Show Answer Correct: Option C. Maximum due to less centrifugal & flattening.
  1. The process of conversion of vapour into liquid is called:
    A. Evaporation B. Condensation C. Sublimation D. Transpiration
Show Answer Correct: Option B. Condensation.
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