RRB Technician Practice Set 38

General Awareness (Q1 – Q25)

  1. Who was the first Indian to win an individual Olympic gold medal?
    A. Leander Paes
    B. Abhinav Bindra
    C. Rajyavardhan Rathore
    D. Milkha Singh
AnswerCorrect: Option B. Abhinav Bindra won gold in 10 m air-rifle at Beijing 2008.
  1. The “Statue of Unity” is dedicated to which Indian leader?
    A. Jawaharlal Nehru
    B. Mahatma Gandhi
    C. Sardar Vallabhbhai Patel
    D. B. R. Ambedkar
AnswerCorrect: Option C. Located in Gujarat, it is the world’s tallest statue.
  1. Which railway zone has its headquarters at Bilaspur?
    A. South East Central
    B. East Coast
    C. North Central
    D. South Central
AnswerCorrect: Option A. SECR HQ is Bilaspur.
  1. The 2023 G-20 Summit under India’s presidency was held in which city?
    A. Mumbai
    B. New Delhi
    C. Bengaluru
    D. Kolkata
AnswerCorrect: Option B. Pragati Maidan hosted the summit.
  1. “Digital India” campaign was launched in which year?
    A. 2014
    B. 2015
    C. 2016
    D. 2017
AnswerCorrect: Option B. Launched on 1 July 2015.
  1. Which article of the Indian Constitution deals with “Right to Property”?
    A. 21
    B. 31
    C. 300A
    D. 19
AnswerCorrect: Option C. 300A (removed from fundamental rights in 1978).
  1. India’s first indigenously built aircraft carrier is:
    A. INS Vikramaditya
    B. INS Vikrant
    C. INS Vishal
    D. INS Viraat
AnswerCorrect: Option B. INS Vikrant (IAC-1) commissioned 2022.
  1. The book “Wings of Fire” is authored by:
    A. A. P. J. Abdul Kalam
    B. Manmohan Singh
    C. Vikram Seth
    D. R. K. Narayan
AnswerCorrect: Option A. Autobiography of Dr. Kalam.
  1. Which planet is known as the “Red Planet”?
    A. Venus
    B. Jupiter
    C. Mars
    D. Saturn
AnswerCorrect: Option C. Iron-oxide gives reddish appearance.
  1. “Project Tiger” was launched in:
    A. 1968
    B. 1973
    C. 1978
    D. 1982
AnswerCorrect: Option B. 1973 at Jim Corbett NP.
  1. Which state has the highest literacy rate as per Census 2011?
    A. Kerala
    B. Mizoram
    C. Goa
    D. Tripura
AnswerCorrect: Option A. Kerala (93.91%).
  1. The largest organ of the human body is:
    A. Brain
    B. Liver
    C. Skin
    D. Heart
AnswerCorrect: Option C. Skin covers ~2 m².
  1. Who is the ex-officio chairman of Rajya Sabha?
    A. President
    B. Vice-President
    C. Prime Minister
    D. Lok Sabha Speaker
AnswerCorrect: Option B. Article 64.
  1. Which Indian railway station became the first “green railway station”?
    A. Mumbai Central
    B. Secunderabad
    C. Jaipur
    D. Vijayawada
AnswerCorrect: Option A. Mumbai Central certified in 2018.
  1. The currency of Argentina is:
    A. Peso
    B. Real
    C. Dollar
    D. Franc
AnswerCorrect: Option A. Argentine Peso.
  1. India’s longest river bridge, the Dhola-Sadiya, is built over which river?
    A. Brahmaputra
    B. Ganga
    C. Lohit
    D. Teesta
AnswerCorrect: Option C. Connects Assam–Arunachal over Lohit (9.15 km).
  1. Which company developed the Covaxin vaccine?
    A. Serum Institute
    B. Bharat Biotech
    C. Dr. Reddy’s
    D. Zydus Cadila
AnswerCorrect: Option B. BBIL with ICMR.
  1. The Nobel Peace Prize 2022 was awarded to:
    A. WHO
    B. Nadia Murad
    C. Ales Bialiatski & organizations
    D. Maria Ressa
AnswerCorrect: Option C. Memorial & Belarusian activists.
  1. Which layer of the atmosphere contains the ozone layer?
    A. Troposphere
    B. Stratosphere
    C. Mesosphere
    D. Thermosphere
AnswerCorrect: Option B. 20–35 km altitude.
  1. The first fully solar-powered Indian airport is:
    A. Bengaluru
    B. Kochi
    C. Hyderabad
    D. Delhi
AnswerCorrect: Option B. Cochin International Airport.
  1. Who is the current Comptroller & Auditor General of India (as of Jan 2024)?
    A. Rajiv Mehrishi
    B. G. C. Murmu
    C. Vinod Rai
    D. Shashi Kant Sharma
AnswerCorrect: Option B. Took office Aug 2020.
  1. India’s first bullet train corridor will connect:
    A. Delhi–Mumbai
    B. Mumbai–Ahmedabad
    C. Chennai–Bengaluru
    D. Delhi–Kolkata
AnswerCorrect: Option B. 508 km MAHSR project.
  1. Which day is celebrated as National Science Day?
    A. 28 Feb
    B. 14 Mar
    C. 5 May
    D. 11 Jul
AnswerCorrect: Option A. Marking Raman-effect discovery 1928.
  1. The term “ACE” in tennis means:
    A. Double fault
    B. Serve winner untouched
    C. Net chord
    D. Smash
AnswerCorrect: Option B. Unreturned legal serve.
  1. Which ministry oversees the “UDAN” scheme?
    A. Civil Aviation
    B. Railways
    C. Tourism
    D. Housing & Urban
AnswerCorrect: Option A. Regional Connectivity Scheme by MoCA.

Mathematics (Q26 – Q50)

  1. The HCF of 144 and 198 is:
    A. 6
    B. 12
    C. 18
    D. 36
AnswerCorrect: Option C. 144=2⁴×3², 198=2×3²×11 ⇒ HCF=18.
  1. If 3^(x+2) = 81, then x equals:
    A. 1
    B. 2
    C. 3
    D. 4
AnswerCorrect: Option B. 3^(x+2)=3⁴ ⇒ x+2=4 ⇒ x=2.
  1. A 120 m train crosses a pole in 6 s. Speed (km/h) is:
    A. 60
    B. 72
    C. 80
    D. 90
AnswerCorrect: Option B. 120/6=20 m/s → 20×18/5=72 km/h.
  1. Simple interest on ₹ 2500 for 3 years @12% p.a. is:
    A. ₹ 800
    B. ₹ 900
    C. ₹ 1000
    D. ₹ 1100
AnswerCorrect: Option B. SI=(2500×12×3)/100=900.
  1. If CP = ₹ 720, gain 25%, then SP is:
    A. ₹ 864
    B. ₹ 880
    C. ₹ 900
    D. ₹ 960
AnswerCorrect: Option C. 720×1.25=900.
  1. The mean of 8, 11, 15, 18, 23, 25 is:
    A. 15
    B. 16
    C. 17
    D. 18
AnswerCorrect: Option C. Sum 100/6 ≈16.67→17 (nearest).
  1. If x + 1/x = 5, then x² + 1/x² = ?
    A. 23
    B. 24
    C. 25
    D. 27
AnswerCorrect: Option A. Square both sides: x²+1/x²+2=25 ⇒ 23.
  1. A man sold two pens each ₹ 600. On one he gains 20%, on other loses 20%. Net gain/loss %:
    A. 4% loss
    B. 4% gain
    C. 2% loss
    D. No loss no gain
AnswerCorrect: Option A. Always 4% loss formula.
  1. √0.0001 = ?
    A. 0.01
    B. 0.001
    C. 0.1
    D. 0.0001
AnswerCorrect: Option A. 0.01²=0.0001.
  1. If 2x – 3y = 5 and x + y = 5, then x is:
    A. 3
    B. 4
    C. 5
    D. 6
AnswerCorrect: Option B. Solve: x=4, y=1.
  1. A pipe fills a tank in 6 h, another empties in 8 h. If both open together, time to fill:
    A. 12 h
    B. 16 h
    C. 24 h
    D. 32 h
AnswerCorrect: Option C. Net 1/6–1/8=1/24 ⇒ 24 h.
  1. The ratio 3:5 is to be changed to 5:7 by adding same number to both terms. The number is:
    A. 2
    B. 3
    C. 4
    D. 5
AnswerCorrect: Option C. (3+x)/(5+x)=5/7 ⇒ x=4.
  1. Area of circle with circumference 44 cm is (π=22/7):
    A. 144
    B. 154
    C. 164
    D. 184
AnswerCorrect: Option B. 2πr=44 ⇒ r=7 ⇒ πr²=154.
  1. If 40% of x = 60% of y, then x:y is:
    A. 2:3
    B. 3:2
    C. 4:3
    D. 3:4
AnswerCorrect: Option B. 0.4x=0.6y ⇒ x/y=3/2.
  1. The smallest 4-digit number divisible by 12, 15, 18 is:
    A. 1000
    B. 1020
    C. 1080
    D. 1200
AnswerCorrect: Option C. LCM=180; 180×6=1080.
  1. If log₁₀2 = 0.3010, then log₁₀80 = ?
    A. 1.6020
    B. 1.6990
    C. 1.9030
    D. 2.0000
AnswerCorrect: Option C. log(8×10)=log8+1=3log2+1=0.903+1=1.903.
  1. A shopkeeper marks price 40% above CP and gives 20% discount. Gain %:
    A. 8%
    B. 10%
    C. 12%
    D. 15%
AnswerCorrect: Option C. 1.4×0.8=1.12 ⇒ 12%.
  1. The sum of first 20 natural numbers is:
    A. 190
    B. 200
    C. 210
    D. 220
AnswerCorrect: Option C. n(n+1)/2=20×21/2=210.
  1. If tan θ = 3/4, then sin θ + cos θ = ?
    A. 7/5
    B. 1
    C. 6/5
    D. 5/4
AnswerCorrect: Option A. 3-4-5 triangle ⇒ 3/5+4/5=7/5.
  1. A sum becomes 4 times in 6 years at simple interest. Rate % p.a.:
    A. 40%
    B. 50%
    C. 60%
    D. 66.6%
AnswerCorrect: Option B. SI=3P, R=(3P×100)/(P×6)=50%.
  1. The value of (0.3̅ + 0.4̅) is:
    A. 0.7̅
    B. 0.7
    C. 0.8̅
    D. 0.77
AnswerCorrect: Option A. 1/3+4/9=7/9=0.7̅.
  1. A car travels 60 km at 30 km/h and 60 km at 60 km/h. Average speed:
    A. 40 km/h
    B. 45 km/h
    C. 48 km/h
    D. 50 km/h
AnswerCorrect: Option A. 120/(2+1)=40 km/h.
  1. If a³ – b³ = 56 and a – b = 2, then ab = ?
    A. 6
    B. 8
    C. 10
    D. 12
AnswerCorrect: Option B. a²+ab+b²=28, (a–b)²=4 ⇒ ab=8.
  1. A clock shows 4:30. The angle between hands is:
    A. 35°
    B. 45°
    C. 60°
    D. 75°
AnswerCorrect: Option B. |30×4–5.5×30|=45°.
  1. The compound interest on ₹ 1000 for 2 years @10% p.a. compounded half-yearly is:
    A. ₹ 210
    B. ₹ 215.50
    C. ₹ 220
    D. ₹ 225
AnswerCorrect: Option B. 1000(1.05)⁴–1000=215.50.

General Intelligence & Reasoning (Q51 – Q75)

  1. Find the odd one out:
    A. Tomato
    B. Cucumber
    C. Brinjal
    D. Apple
AnswerCorrect: Option D. Apple is a fruit eaten raw, rest culinary vegetables.
  1. Complete series: 3, 8, 18, 38, ?
    A. 58
    B. 68
    C. 78
    D. 88
AnswerCorrect: Option C. Pattern ×2+2.
  1. If ROSE is coded as 5817, then SOAR is coded:
    A. 7158
    B. 7518
    C. 7581
    D. 7851
AnswerCorrect: Option A. Reverse letter positions.
  1. Pointing to a lady, Ram said, “She is the daughter of my grandfather’s only son.” How is lady related?
    A. Sister
    B. Cousin
    C. Aunt
    D. Mother
AnswerCorrect: Option A. Only son is Ram’s father; daughter = sister.
  1. Mirror image of figure “R” is: (assume horizontal mirror)
    A. R
    B. Я
    C. Ɔ
    D. ɿ
AnswerCorrect: Option B. Reverse R (Cyrillic Ya).
  1. Select the pair with same relation as “Doctor : Stethoscope”
    A. Carpenter : Saw
    B. Painter : Canvas
    C. Chef : Oven
    D. Farmer : Plough
AnswerCorrect: Option A. Tool-of-trade relation.
  1. If ‘+’ means ‘×’, ‘–’ means ‘÷’, ‘×’ means ‘–’, ‘÷’ means ‘+’, then 4 + 3 × 2 – 6 ÷ 3 = ?
    A. 8
    B. 10
    C. 12
    D. 14
AnswerCorrect: Option C. 4×3–2÷6+3=12–0.33+3≈12 (closest).
  1. Arrange words: 1. Seed 2. Plant 3. Fruit 4. Flower 5. Pollination
    A. 1,2,3,4,5
    B. 1,2,4,5,3
    C. 1,2,5,4,3
    D. 2,1,4,5,3
AnswerCorrect: Option B.
  1. Count squares in given figure (4×4 grid):
    A. 16
    B. 25
    C. 30
    D. 36
AnswerCorrect: Option C. 1²+2²+3²+4²=30.
  1. If 1 Nov is Monday, what day is 1 Dec?
    A. Wed
    B. Thu
    C. Fri
    D. Sat
AnswerCorrect: Option B. 30 days ≡ 2 odd days ⇒ Wed+2=Fri? Mon+30=Thu.
  1. Statement: All cats are dogs. Some dogs are rats.
    Conclusion: I. Some rats are cats. II. All rats are dogs.
    A. Only I
    B. Only II
    C. Both
    D. Neither
AnswerCorrect: Option D. Neither follows.
  1. Code language: APPLE → 50, then BANANA → ?
    A. 60
    B. 62
    C. 64
    D. 66
AnswerCorrect: Option B. A=1… sum×2: (2+16+16+12+10)=56? Adjust: BANANA=2+1+14+1+14+1=33×2=66? Closest 66, but standard=62 (options). Exact: 66. (Option D).
  1. Missing number in matrix:
    2 3 5
    4 6 10
    6 9 ?
    A. 13
    B. 15
    C. 17
    D. 19
AnswerCorrect: Option B. Row3=3×row1 ⇒ 5×3=15.
  1. Which Venn diagram represents: Professor, Teacher, Human? (Human largest circle, Teacher inside, Professor inside Teacher)
    A. Prof⊂Teacher⊂Human
    B. Teacher⊂Prof⊂Human
    C. Separate
    D. Overlap only
AnswerCorrect: Option A.
  1. A walks 10 m North, 20 m East, 10 m South. He is ___ m from start.
    A. 10
    B. 20
    C. 30
    D. 40
AnswerCorrect: Option B. Net 20 m East.
  1. If 49 : 81 :: 121 : ?
    A. 143
    B. 169
    C. 181
    D. 221
AnswerCorrect: Option B. 7²:9² :: 11²:13²=169.
  1. Odd numeral pair:
    A. 12-144
    B. 15-225
    C. 18-324
    D. 20-500
AnswerCorrect: Option D. 20²=400≠500.
  1. Select meaningful order: 1. Paragraph 2. Word 3. Letter 4. Sentence 5. Essay
    A. 3,2,4,1,5
    B. 3,2,1,4,5
    C. 2,3,4,1,5
    D. 5,1,4,2,3
AnswerCorrect: Option A.
  1. If S = 19, AT = 20, then BAT = ?
    A. 23
    B. 24
    C. 25
    D. 26
AnswerCorrect: Option C. B+A+T=2+1+20=23? Actually 2+1+20=23 (A). Recheck: 2+1+20=23 ⇒ Option A.
  1. Paper folding: square folded twice along diagonal then a corner cut; opened shape is:
    A. Square with hole
    B. Triangle
    C. 4-pointed star
    D. Circle
AnswerCorrect: Option C. Symmetric 4 small holes forming star.
  1. In alphabet series, which letter is 7th to right of 13th from left?
    A. T
    B. U
    C. V
    D. W
AnswerCorrect: Option A. 13+7=20 → T.
  1. If 5 men or 8 women can do work in 12 days, how many days for 3 men & 4 women?
    A. 10
    B. 12
    C. 13⅓
    D. 15
AnswerCorrect: Option C. Total work 60 man-days; 3m+4w=3+2.5=5.5 ⇒ 60/5.5=13⅓.
  1. Cube painted red, cut into 64 small cubes. How many have exactly two faces painted?
    A. 8
    B. 12
    C. 24
    D. 32
AnswerCorrect: Option C. 12 edges × (4–2)=24.
  1. Word cannot be made from “CONSTRUCTION”:
    A. COUNT
    B. RUST
    C. TONIC
    D. STATION
AnswerCorrect: Option D. Requires 2 T’s but only one T available.
  1. Pattern completion: △△◯△△◯△?
    A. △
    B. ◯
    C. □
    D. ◁
AnswerCorrect: Option A. 2△1◯ repeat.

General Science (Q76 – Q100)

  1. The SI unit of electric current is:
    A. Volt
    B. Ampere
    C. Ohm
    D. Coulomb
AnswerCorrect: Option B.
  1. Which colour deviates the least when white light passes through a prism?
    A. Red
    B. Yellow
    C. Blue
    D. Violet
AnswerCorrect: Option A. Red (longest λ).
  1. pH of human blood is approximately:
    A. 6.8
    B. 7.0
    C. 7.4
    D. 8.0
AnswerCorrect: Option C. Slightly alkaline.
  1. The process of conversion of sugar into alcohol is called:
    A. Oxidation
    B. Fermentation
    C. Esterification
    D. Saponification
AnswerCorrect: Option B. Yeast fermentation.
  1. Which organelle is known as “powerhouse of cell”?
    A. Ribosome
    B. Mitochondria
    C. Golgi body
    D. Lysosome
AnswerCorrect: Option B.
  1. The speed of sound in air at STP is approximately:
    A. 332 m/s
    B. 344 m/s
    C. 356 m/s
    D. 380 m/s
AnswerCorrect: Option A. 332 m/s at 0°C.
  1. Which gas is filled in electric bulbs?
    A. Oxygen
    B. Nitrogen-Argon mix
    C. Hydrogen
    D. Carbon dioxide
AnswerCorrect: Option B. Inert mixture.
  1. The chemical symbol of tungsten is:
    A. T
    B. W
    C. Tu
    D. Tg
AnswerCorrect: Option B. Wolfram (German).
  1. Which vitamin is produced by human skin in sunlight?
    A. A
    B. D
    C. E
    D. K
AnswerCorrect: Option B. Vitamin D₃.
  1. The reaction of an acid with a base is called:
    A. Oxidation
    B. Neutralization
    C. Reduction
    D. Hydrolysis
AnswerCorrect: Option B.
  1. Which planet has the maximum number of natural satellites?
    A. Jupiter
    B. Saturn
    C. Uranus
    D. Neptune
AnswerCorrect: Option B. Saturn (146 confirmed, 2023).
  1. The device to measure electric current is:
    A. Voltmeter
    B. Ammeter
    C. Galvanometer
    D. Ohmmeter
AnswerCorrect: Option B.
  1. Which part of cotton plant yields fibre?
    A. Root
    B. Stem
    C. Seed
    D. Leaf
AnswerCorrect: Option C. Seed epidermal hairs.
  1. The atomic number of carbon is:
    A. 4
    B. 6
    C. 8
    D. 12
AnswerCorrect: Option B.
  1. Which disease is caused by deficiency of insulin?
    A. Diabetes mellitus
    B. Goitre
    C. Anaemia
    D. Rickets
AnswerCorrect: Option A.
  1. The process of removal of chlorophyll by boiling leaf in alcohol is called:
    A. Decolourisation
    B. Saponification
    C. Esterification
    D. Dehydrogenation
AnswerCorrect: Option A.
  1. The hardest natural substance known is:
    A. Quartz
    B. Diamond
    C. Graphite
    D. Tungsten
AnswerCorrect: Option B.
  1. Which mirror is used as rear-view mirror in vehicles?
    A. Plane
    B. Concave
    C. Convex
    D. Cylindrical
AnswerCorrect: Option C. Gives erect diminished image.
  1. The filament of electric heater is made of:
    A. Copper
    B. Nichrome
    C. Aluminium
    D. Silver
AnswerCorrect: Option B. High resistivity.
  1. Which gas is released during photosynthesis?
    A. CO₂
    B. O₂
    C. N₂
    D. H₂
AnswerCorrect: Option B.
  1. The frequency of AC mains in India is:
    A. 50 Hz
    B. 60 Hz
    C. 45 Hz
    D. 100 Hz
AnswerCorrect: Option A.
  1. Which microorganism is used in making of bread?
    A. Lactobacillus
    B. Saccharomyces
    C. Penicillium
    D. Aspergillus
AnswerCorrect: Option B. Yeast.
  1. The colour of ferrous sulphate crystal is:
    A. Blue
    B. Green
    C. White
    D. Yellow
AnswerCorrect: Option B. FeSO₄.7H₂O is green.
  1. The splitting of light into its component colours is called:
    A. Reflection
    B. Refraction
    C. Dispersion
    D. Diffraction
AnswerCorrect: Option C. Newton’s experiment.
  1. Which Indian satellite is weather forecasting dedicated?
    A. GSAT-30
    B. INSAT-3D
    C. Cartosat-3
    D. RISAT-2
AnswerCorrect: Option B. INSAT-3D meteorological payload.