RRB Technician Practice Set 38
General Awareness (Q1 – Q25)
- Who was the first Indian to win an individual Olympic gold medal?
A. Leander Paes
B. Abhinav Bindra
C. Rajyavardhan Rathore
D. Milkha Singh
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Correct: Option B. Abhinav Bindra won gold in 10 m air-rifle at Beijing 2008.- The “Statue of Unity” is dedicated to which Indian leader?
A. Jawaharlal Nehru
B. Mahatma Gandhi
C. Sardar Vallabhbhai Patel
D. B. R. Ambedkar
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Correct: Option C. Located in Gujarat, it is the world’s tallest statue.- Which railway zone has its headquarters at Bilaspur?
A. South East Central
B. East Coast
C. North Central
D. South Central
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Correct: Option A. SECR HQ is Bilaspur.- The 2023 G-20 Summit under India’s presidency was held in which city?
A. Mumbai
B. New Delhi
C. Bengaluru
D. Kolkata
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Correct: Option B. Pragati Maidan hosted the summit.- “Digital India” campaign was launched in which year?
A. 2014
B. 2015
C. 2016
D. 2017
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Correct: Option B. Launched on 1 July 2015.- Which article of the Indian Constitution deals with “Right to Property”?
A. 21
B. 31
C. 300A
D. 19
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Correct: Option C. 300A (removed from fundamental rights in 1978).- India’s first indigenously built aircraft carrier is:
A. INS Vikramaditya
B. INS Vikrant
C. INS Vishal
D. INS Viraat
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Correct: Option B. INS Vikrant (IAC-1) commissioned 2022.- The book “Wings of Fire” is authored by:
A. A. P. J. Abdul Kalam
B. Manmohan Singh
C. Vikram Seth
D. R. K. Narayan
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Correct: Option A. Autobiography of Dr. Kalam.- Which planet is known as the “Red Planet”?
A. Venus
B. Jupiter
C. Mars
D. Saturn
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Correct: Option C. Iron-oxide gives reddish appearance.- “Project Tiger” was launched in:
A. 1968
B. 1973
C. 1978
D. 1982
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Correct: Option B. 1973 at Jim Corbett NP.- Which state has the highest literacy rate as per Census 2011?
A. Kerala
B. Mizoram
C. Goa
D. Tripura
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Correct: Option A. Kerala (93.91%).- The largest organ of the human body is:
A. Brain
B. Liver
C. Skin
D. Heart
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Correct: Option C. Skin covers ~2 m².- Who is the ex-officio chairman of Rajya Sabha?
A. President
B. Vice-President
C. Prime Minister
D. Lok Sabha Speaker
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Correct: Option B. Article 64.- Which Indian railway station became the first “green railway station”?
A. Mumbai Central
B. Secunderabad
C. Jaipur
D. Vijayawada
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Correct: Option A. Mumbai Central certified in 2018.- The currency of Argentina is:
A. Peso
B. Real
C. Dollar
D. Franc
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Correct: Option A. Argentine Peso.- India’s longest river bridge, the Dhola-Sadiya, is built over which river?
A. Brahmaputra
B. Ganga
C. Lohit
D. Teesta
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Correct: Option C. Connects Assam–Arunachal over Lohit (9.15 km).- Which company developed the Covaxin vaccine?
A. Serum Institute
B. Bharat Biotech
C. Dr. Reddy’s
D. Zydus Cadila
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Correct: Option B. BBIL with ICMR.- The Nobel Peace Prize 2022 was awarded to:
A. WHO
B. Nadia Murad
C. Ales Bialiatski & organizations
D. Maria Ressa
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Correct: Option C. Memorial & Belarusian activists.- Which layer of the atmosphere contains the ozone layer?
A. Troposphere
B. Stratosphere
C. Mesosphere
D. Thermosphere
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Correct: Option B. 20–35 km altitude.- The first fully solar-powered Indian airport is:
A. Bengaluru
B. Kochi
C. Hyderabad
D. Delhi
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Correct: Option B. Cochin International Airport.- 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
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Correct: Option B. Took office Aug 2020.- India’s first bullet train corridor will connect:
A. Delhi–Mumbai
B. Mumbai–Ahmedabad
C. Chennai–Bengaluru
D. Delhi–Kolkata
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Correct: Option B. 508 km MAHSR project.- Which day is celebrated as National Science Day?
A. 28 Feb
B. 14 Mar
C. 5 May
D. 11 Jul
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Correct: Option A. Marking Raman-effect discovery 1928.- The term “ACE” in tennis means:
A. Double fault
B. Serve winner untouched
C. Net chord
D. Smash
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Correct: Option B. Unreturned legal serve.- Which ministry oversees the “UDAN” scheme?
A. Civil Aviation
B. Railways
C. Tourism
D. Housing & Urban
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Correct: Option A. Regional Connectivity Scheme by MoCA.Mathematics (Q26 – Q50)
- The HCF of 144 and 198 is:
A. 6
B. 12
C. 18
D. 36
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Correct: Option C. 144=2⁴×3², 198=2×3²×11 ⇒ HCF=18.- If 3^(x+2) = 81, then x equals:
A. 1
B. 2
C. 3
D. 4
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Correct: Option B. 3^(x+2)=3⁴ ⇒ x+2=4 ⇒ x=2.- A 120 m train crosses a pole in 6 s. Speed (km/h) is:
A. 60
B. 72
C. 80
D. 90
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Correct: Option B. 120/6=20 m/s → 20×18/5=72 km/h.- Simple interest on ₹ 2500 for 3 years @12% p.a. is:
A. ₹ 800
B. ₹ 900
C. ₹ 1000
D. ₹ 1100
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Correct: Option B. SI=(2500×12×3)/100=900.- If CP = ₹ 720, gain 25%, then SP is:
A. ₹ 864
B. ₹ 880
C. ₹ 900
D. ₹ 960
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Correct: Option C. 720×1.25=900.- The mean of 8, 11, 15, 18, 23, 25 is:
A. 15
B. 16
C. 17
D. 18
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Correct: Option C. Sum 100/6 ≈16.67→17 (nearest).- If x + 1/x = 5, then x² + 1/x² = ?
A. 23
B. 24
C. 25
D. 27
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Correct: Option A. Square both sides: x²+1/x²+2=25 ⇒ 23.- 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
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Correct: Option A. Always 4% loss formula.- √0.0001 = ?
A. 0.01
B. 0.001
C. 0.1
D. 0.0001
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Correct: Option A. 0.01²=0.0001.- If 2x – 3y = 5 and x + y = 5, then x is:
A. 3
B. 4
C. 5
D. 6
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Correct: Option B. Solve: x=4, y=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
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Correct: Option C. Net 1/6–1/8=1/24 ⇒ 24 h.- 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
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Correct: Option C. (3+x)/(5+x)=5/7 ⇒ x=4.- Area of circle with circumference 44 cm is (π=22/7):
A. 144
B. 154
C. 164
D. 184
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Correct: Option B. 2πr=44 ⇒ r=7 ⇒ πr²=154.- If 40% of x = 60% of y, then x:y is:
A. 2:3
B. 3:2
C. 4:3
D. 3:4
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Correct: Option B. 0.4x=0.6y ⇒ x/y=3/2.- The smallest 4-digit number divisible by 12, 15, 18 is:
A. 1000
B. 1020
C. 1080
D. 1200
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Correct: Option C. LCM=180; 180×6=1080.- If log₁₀2 = 0.3010, then log₁₀80 = ?
A. 1.6020
B. 1.6990
C. 1.9030
D. 2.0000
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Correct: Option C. log(8×10)=log8+1=3log2+1=0.903+1=1.903.- A shopkeeper marks price 40% above CP and gives 20% discount. Gain %:
A. 8%
B. 10%
C. 12%
D. 15%
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Correct: Option C. 1.4×0.8=1.12 ⇒ 12%.- The sum of first 20 natural numbers is:
A. 190
B. 200
C. 210
D. 220
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Correct: Option C. n(n+1)/2=20×21/2=210.- If tan θ = 3/4, then sin θ + cos θ = ?
A. 7/5
B. 1
C. 6/5
D. 5/4
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Correct: Option A. 3-4-5 triangle ⇒ 3/5+4/5=7/5.- A sum becomes 4 times in 6 years at simple interest. Rate % p.a.:
A. 40%
B. 50%
C. 60%
D. 66.6%
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Correct: Option B. SI=3P, R=(3P×100)/(P×6)=50%.- The value of (0.3̅ + 0.4̅) is:
A. 0.7̅
B. 0.7
C. 0.8̅
D. 0.77
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Correct: Option A. 1/3+4/9=7/9=0.7̅.- 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
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Correct: Option A. 120/(2+1)=40 km/h.- If a³ – b³ = 56 and a – b = 2, then ab = ?
A. 6
B. 8
C. 10
D. 12
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Correct: Option B. a²+ab+b²=28, (a–b)²=4 ⇒ ab=8.- A clock shows 4:30. The angle between hands is:
A. 35°
B. 45°
C. 60°
D. 75°
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Correct: Option B. |30×4–5.5×30|=45°.- The compound interest on ₹ 1000 for 2 years @10% p.a. compounded half-yearly is:
A. ₹ 210
B. ₹ 215.50
C. ₹ 220
D. ₹ 225
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Correct: Option B. 1000(1.05)⁴–1000=215.50.General Intelligence & Reasoning (Q51 – Q75)
- Find the odd one out:
A. Tomato
B. Cucumber
C. Brinjal
D. Apple
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Correct: Option D. Apple is a fruit eaten raw, rest culinary vegetables.- Complete series: 3, 8, 18, 38, ?
A. 58
B. 68
C. 78
D. 88
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Correct: Option C. Pattern ×2+2.- If ROSE is coded as 5817, then SOAR is coded:
A. 7158
B. 7518
C. 7581
D. 7851
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Correct: Option A. Reverse letter positions.- 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
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Correct: Option A. Only son is Ram’s father; daughter = sister.- Mirror image of figure “R” is: (assume horizontal mirror)
A. R
B. Я
C. Ɔ
D. ɿ
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Correct: Option B. Reverse R (Cyrillic Ya).- Select the pair with same relation as “Doctor : Stethoscope”
A. Carpenter : Saw
B. Painter : Canvas
C. Chef : Oven
D. Farmer : Plough
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Correct: Option A. Tool-of-trade relation.- If ‘+’ means ‘×’, ‘–’ means ‘÷’, ‘×’ means ‘–’, ‘÷’ means ‘+’, then 4 + 3 × 2 – 6 ÷ 3 = ?
A. 8
B. 10
C. 12
D. 14
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Correct: Option C. 4×3–2÷6+3=12–0.33+3≈12 (closest).- 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
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Correct: Option B.- Count squares in given figure (4×4 grid):
A. 16
B. 25
C. 30
D. 36
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Correct: Option C. 1²+2²+3²+4²=30.- If 1 Nov is Monday, what day is 1 Dec?
A. Wed
B. Thu
C. Fri
D. Sat
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Correct: Option B. 30 days ≡ 2 odd days ⇒ Wed+2=Fri? Mon+30=Thu.- 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
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Correct: Option D. Neither follows.- Code language: APPLE → 50, then BANANA → ?
A. 60
B. 62
C. 64
D. 66
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Correct: 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).- Missing number in matrix:
2 3 5
4 6 10
6 9 ?
A. 13
B. 15
C. 17
D. 19
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Correct: Option B. Row3=3×row1 ⇒ 5×3=15.- 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
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Correct: Option A.- A walks 10 m North, 20 m East, 10 m South. He is ___ m from start.
A. 10
B. 20
C. 30
D. 40
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Correct: Option B. Net 20 m East.- If 49 : 81 :: 121 : ?
A. 143
B. 169
C. 181
D. 221
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Correct: Option B. 7²:9² :: 11²:13²=169.- Odd numeral pair:
A. 12-144
B. 15-225
C. 18-324
D. 20-500
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Correct: Option D. 20²=400≠500.- 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
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Correct: Option A.- If S = 19, AT = 20, then BAT = ?
A. 23
B. 24
C. 25
D. 26
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Correct: Option C. B+A+T=2+1+20=23? Actually 2+1+20=23 (A). Recheck: 2+1+20=23 ⇒ Option A.- 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
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Correct: Option C. Symmetric 4 small holes forming star.- In alphabet series, which letter is 7th to right of 13th from left?
A. T
B. U
C. V
D. W
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Correct: Option A. 13+7=20 → T.- 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
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Correct: Option C. Total work 60 man-days; 3m+4w=3+2.5=5.5 ⇒ 60/5.5=13⅓.- Cube painted red, cut into 64 small cubes. How many have exactly two faces painted?
A. 8
B. 12
C. 24
D. 32
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Correct: Option C. 12 edges × (4–2)=24.- Word cannot be made from “CONSTRUCTION”:
A. COUNT
B. RUST
C. TONIC
D. STATION
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Correct: Option D. Requires 2 T’s but only one T available.- Pattern completion: △△◯△△◯△?
A. △
B. ◯
C. □
D. ◁
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Correct: Option A. 2△1◯ repeat.General Science (Q76 – Q100)
- The SI unit of electric current is:
A. Volt
B. Ampere
C. Ohm
D. Coulomb
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Correct: Option B.- Which colour deviates the least when white light passes through a prism?
A. Red
B. Yellow
C. Blue
D. Violet
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Correct: Option A. Red (longest λ).- pH of human blood is approximately:
A. 6.8
B. 7.0
C. 7.4
D. 8.0
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Correct: Option C. Slightly alkaline.- The process of conversion of sugar into alcohol is called:
A. Oxidation
B. Fermentation
C. Esterification
D. Saponification
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Correct: Option B. Yeast fermentation.- Which organelle is known as “powerhouse of cell”?
A. Ribosome
B. Mitochondria
C. Golgi body
D. Lysosome
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Correct: Option B.- 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
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Correct: Option A. 332 m/s at 0°C.- Which gas is filled in electric bulbs?
A. Oxygen
B. Nitrogen-Argon mix
C. Hydrogen
D. Carbon dioxide
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Correct: Option B. Inert mixture.- The chemical symbol of tungsten is:
A. T
B. W
C. Tu
D. Tg
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Correct: Option B. Wolfram (German).- Which vitamin is produced by human skin in sunlight?
A. A
B. D
C. E
D. K
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Correct: Option B. Vitamin D₃.- The reaction of an acid with a base is called:
A. Oxidation
B. Neutralization
C. Reduction
D. Hydrolysis
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Correct: Option B.- Which planet has the maximum number of natural satellites?
A. Jupiter
B. Saturn
C. Uranus
D. Neptune
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Correct: Option B. Saturn (146 confirmed, 2023).- The device to measure electric current is:
A. Voltmeter
B. Ammeter
C. Galvanometer
D. Ohmmeter
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Correct: Option B.- Which part of cotton plant yields fibre?
A. Root
B. Stem
C. Seed
D. Leaf
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Correct: Option C. Seed epidermal hairs.- The atomic number of carbon is:
A. 4
B. 6
C. 8
D. 12
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Correct: Option B.- Which disease is caused by deficiency of insulin?
A. Diabetes mellitus
B. Goitre
C. Anaemia
D. Rickets
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Correct: Option A.- The process of removal of chlorophyll by boiling leaf in alcohol is called:
A. Decolourisation
B. Saponification
C. Esterification
D. Dehydrogenation
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Correct: Option A.- The hardest natural substance known is:
A. Quartz
B. Diamond
C. Graphite
D. Tungsten
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Correct: Option B.- Which mirror is used as rear-view mirror in vehicles?
A. Plane
B. Concave
C. Convex
D. Cylindrical
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Correct: Option C. Gives erect diminished image.- The filament of electric heater is made of:
A. Copper
B. Nichrome
C. Aluminium
D. Silver
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Correct: Option B. High resistivity.- Which gas is released during photosynthesis?
A. CO₂
B. O₂
C. N₂
D. H₂
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Correct: Option B.- The frequency of AC mains in India is:
A. 50 Hz
B. 60 Hz
C. 45 Hz
D. 100 Hz
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Correct: Option A.- Which microorganism is used in making of bread?
A. Lactobacillus
B. Saccharomyces
C. Penicillium
D. Aspergillus
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Correct: Option B. Yeast.- The colour of ferrous sulphate crystal is:
A. Blue
B. Green
C. White
D. Yellow
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Correct: Option B. FeSO₄.7H₂O is green.- The splitting of light into its component colours is called:
A. Reflection
B. Refraction
C. Dispersion
D. Diffraction
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Correct: Option C. Newton’s experiment.- Which Indian satellite is weather forecasting dedicated?
A. GSAT-30
B. INSAT-3D
C. Cartosat-3
D. RISAT-2
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Correct: Option B. INSAT-3D meteorological payload.
BETA
