RRB Technician Practice Set 39
General Awareness (25 Q)
- 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
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Correct: Option C. Jaya Varma Sinha became the first woman to chair the Railway Board in Sept 2023.- India’s first indigenous aircraft carrier is named:
A. INS Vikrant
B. INS Vikramaditya
C. INS Shakti
D. INS Vishal
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Correct: Option A. INS Vikrant (IAC-I) was commissioned in Sept 2022.- The 2028 Summer Olympics will be hosted by:
A. Paris
B. Brisbane
C. Los Angeles
D. Milan
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Correct: Option C. LA 2028.- Which state launched the “Mission Shakti” scheme for women empowerment?
A. Maharashtra
B. Uttar Pradesh
C. Odisha
D. Gujarat
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Correct: Option B. UP govt’s flagship scheme.- The currency of Argentina is:
A. Peso
B. Real
C. Bolívar
D. Sol
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Correct: Option A.- The world’s longest highway tunnel above 10,000 ft is:
A. Atal Tunnel
B. Zojila Tunnel
C. Chenani-Nashri Tunnel
D. Rohtang Tunnel
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Correct: Option A. 9.02 km under Rohtang Pass.- Who authored the book “The India Way”?
A. S. Jaishankar
B. Narendra Modi
C. Nirmala Sitharaman
D. Amit Shah
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Correct: Option A.- The first railway line in India (1853) ran between:
A. Bombay–Pune
B. Bombay–Thane
C. Calcutta–Howrah
D. Madras–Arcot
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Correct: Option B. 34 km, 16 Apr 1853.- Which ministry implements the PM-KUSUM scheme?
A. Agriculture
B. New & Renewable Energy
C. Jal Shakti
D. Power
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Correct: Option B. MNRE.- The 2023 Nobel Peace Prize was awarded to:
A. Narges Mohammadi
B. Malala Yousafzai
C. Dmitry Muratov
D. Maria Ressa
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Correct: Option A. Iranian activist.- India’s first Vande Bharat Express was flagged off on which route?
A. NDLS–Varanasi
B. NDLS–Katra
C. Mumbai–Ahmedabad
D. NDLS–Agra
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Correct: Option A. 15 Feb 2019.- Which river is called the “Sorrow of Bihar”?
A. Kosi
B. Damodar
C. Gandak
D. Ghaghara
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Correct: Option A.- The maximum strength of the Rajya Sabha is:
A. 238
B. 245
C. 250
D. 252
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Correct: Option C. 250 (238 elected + 12 nominated).- India’s first solar-powered railway station is:
A. Guwahati
B. Jaipur
C. Kochi
D. Bengaluru
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Correct: Option A. Guwahati, 2017.- Which country launched the world’s first 5G network?
A. USA
B. South Korea
C. China
D. Japan
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Correct: Option B. SK Telecom, Apr 2019.- The term “Bull” is associated with:
A. Stock market rising
B. Commodity bearish
C. Forex slump
D. Bond yield fall
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Correct: Option A.- India’s first biosphere reserve is:
A. Nilgiri
B. Nandadevi
C. Sundarban
D. Gulf of Mannar
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Correct: Option A. Notified 1986.- Which regiment is known as “The Bravest of the Brave”?
A. Gorkha
B. Sikh
C. Rajput
D. Jat
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Correct: Option A. Motto: Kayar Hunu Bhanda Marnu Ramro.- The world’s largest rail museum is located in:
A. London
B. Delhi
C. York
D. Ottawa
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Correct: Option C. National Railway Museum, York.- India’s first hydrogen train trial will be in:
A. Haryana
B. Gujarat
C. Punjab
D. Uttar Pradesh
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Correct: Option B. Kevadiya–Vadodara section.- Which state has the highest installed wind capacity?
A. Rajasthan
B. Gujarat
C. Tamil Nadu
D. Maharashtra
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Correct: Option C. ~40 % share.- The “Golden Quadrilateral” connects:
A. Delhi–Mumbai–Chennai–Kolkata
B. Delhi–Mumbai–Bengaluru–Hyderabad
C. Mumbai–Chennai–Kolkata–Ahmedabad
D. Delhi–Kolkata–Chennai–Pune
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Correct: Option A.- 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
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Correct: Option D. No celebrity ambassador.- The first metro rail in India started in:
A. Delhi
B. Kolkata
C. Bengaluru
D. Mumbai
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Correct: Option B. 1984.- India’s first cable-stayed rail bridge is:
A. Chenab Bridge
B. Anji Khad Bridge
C. Pamban Bridge
D. Vembanad Bridge
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Correct: Option B. On Udhampur-Srinagar-Baramulla rail link.
Mathematics (25 Q)
- If 3^(x+2) = 243, then x equals:
A. 1
B. 2
C. 3
D. 5
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Correct: Option C. 3^5=243 ⇒ x+2=5 ⇒ x=3.- The HCF of 36, 48, 72 is:
A. 6
B. 12
C. 18
D. 24
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Correct: Option B.- 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
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Correct: Option A. P = 9261/(1.05)^3 = 8000.- 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
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Correct: Option B. 20 m/s = 72 km/h.- If x + 1/x = 5, then x² + 1/x² is:
A. 23
B. 25
C. 27
D. 29
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Correct: Option A. (x+1/x)² = 25 ⇒ x²+1/x² = 25–2 = 23.- 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
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Correct: Option B. Total = 119.9; sum first 6 = 63; last 6 = 68.4 ⇒ 6th = 63+68.4–119.9 = 11.5 → D.- A man buys 11 oranges for ₹ 10 and sells 10 oranges for ₹ 11. His gain % is:
A. 1 %
B. 10 %
C. 11 %
D. 21 %
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Correct: Option D. CP/Orange = 10/11, SP/Orange = 11/10; gain % = [(11/10 – 10/11)/(10/11)]×100 = 21 %.- If tan θ = 3/4, then sin θ + cos θ =
A. 7/5
B. 1/5
C. 3/5
D. 4/5
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Correct: Option A. 3k,4k,5k ⇒ (3+4)/5 = 7/5.- 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
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Correct: Option B. 1/C = 1/6 – (1/12+1/18) = 1/6 – 5/36 = 1/36.- The least perfect square divisible by 12, 15, 18 is:
A. 900
B. 1600
C. 2500
D. 3600
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Correct: Option A. LCM = 180; 180×5 = 900.- Simple interest on ₹ 800 for 3 years is ₹ 120. The rate % is:
A. 3
B. 4
C. 5
D. 6
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Correct: Option C. 120 = 800×3×r/100 ⇒ r = 5 %.- If (0.04)² = 0.0016, then √(1.6) =
A. 0.04
B. 0.4
C. 4
D. 0.16
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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.- 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
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Correct: Option C. 4/3 π r³ = π r² h ⇒ h = 4/3 r = 4 cm.- 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
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Correct: Option C. 3x+4 / 5x+4 = 7/11 ⇒ x=6 ⇒ A=18.- If log₁₀ 2 = 0.3010, then log₁₀ 80 =
A. 1.6020
B. 1.9030
C. 2.0969
D. 2.1072
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Correct: Option B. log 80 = log(8×10) = 3×0.3010 + 1 = 1.9030.- A shopkeeper marks goods 30 % above CP and gives 10 % discount. The gain % is:
A. 17 %
B. 18 %
C. 19 %
D. 20 %
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Correct: Option A. 1.3 × 0.9 = 1.17 ⇒ 17 %.- The sum of first 20 odd natural numbers is:
A. 200
B. 300
C. 400
D. 500
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Correct: Option C. n² = 400.- If a² + b² + c² = ab + bc + ca, then the triangle is:
A. equilateral
B. isosceles
C. right
D. scalene
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Correct: Option A.- A clock shows 4 o’clock. The angle between hands is:
A. 90°
B. 120°
C. 150°
D. 30°
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Correct: Option B. 30×4 = 120°.- The value of (1 + 1/2)(1 + 1/3)…(1 + 1/20) =
A. 10.5
B. 21
C. 20
D. 11
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Correct: Option B. Telescopes to 21/2 = 10.5 → A; but product = 21/2 = 10.5 → A.- 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
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Correct: Option A. (12–8)/2 = 2.- The number of diagonals in an octagon is:
A. 20
B. 28
C. 36
D. 48
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Correct: Option A. 8C2 – 8 = 20.- If 2^x = 3^y = 6, then 1/x + 1/y =
A. 0
B. 1
C. 2
D. 6
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Correct: Option B. x = log₂6, y = log₃6 ⇒ 1/x + 1/y = log₆2 + log₆3 = log₆6 = 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
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Correct: Option A. 2 h × 60 = 120 km.- The area of an equilateral triangle of side 4 cm is:
A. 4√3
B. 8√3
C. 2√3
D. 16√3
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Correct: Option A. (√3/4)×16 = 4√3.
General Intelligence & Reasoning (25 Q)
- Find the odd one out:
A. Tomato
B. Cucumber
C. Brinjal
D. Potato
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Correct: Option D. Grows underground (modified stem).- 4, 9, 25, 49, ?, 169
A. 64
B. 81
C. 100
D. 121
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Correct: Option D. Squares of primes: 2²,3²,5²,7²,11²,13².- If SYSTEM is coded as TZTFVN, then LOVER is:
A. MPWFS
B. MPWDS
C. MPXFS
D. MPXFT
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Correct: Option A. +1,–2,+3,–4,+5,–6 pattern.- 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
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Correct: Option B. Only daughter of his mother is his sister; but he says “her mother” ⇒ he is the father.- Find the missing number:
2 3 4
4 9 16
8 27 ?
A. 64
B. 48
C. 32
D. 56
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Correct: Option A. 2¹,3²,4³ ⇒ 8,27,64.- Arrange words:
- 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.- If ‘+’ means ‘×’, ‘–’ means ‘÷’, ‘×’ means ‘–’, ‘÷’ means ‘+’, then 16 ÷ 4 × 2 + 3 =
A. 9
B. 10
C. 11
D. 12
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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).- Mirror image of
T E N
A. ƎTИ
B. ИƎT
C. TИƎ
D. ИTƎ
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Correct: Option B. Horizontal mirror.- Count triangles in the given figure (assume a pentagon with all diagonals):
A. 10
B. 15
C. 20
D. 35
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Correct: Option D. Standard pentagram has 35.- 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
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Correct: Option D.- If A > B, B ≥ C, C = D, then which is true?
A. A > D
B. A ≥ D
C. A < D
D. A ≤ D
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Correct: Option A.- Word formation: Which cannot be formed from “CONSTITUTION”?
A. TUTION
B. TONIC
C. STATION
D. CONSTABLE
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Correct: Option D. Missing ‘E’.- In a row Rahul is 18th from left and 15th from right. Total students:
A. 31
B. 32
C. 33
D. 34
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Correct: Option B. 18+15–1 = 32.- Coding: CAT = 57, DOG = 59, then RAT =
A. 73
B. 71
C. 69
D. 67
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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).- Find the wrong number: 8, 27, 64, 112, 216, 343
A. 112
B. 216
C. 27
D. 64
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Correct: Option A. Must be 125 (5³).- 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
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Correct: Option A.- 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
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Correct: Option A. Net 2 km east.- Pattern: AB, DEF, HIJK, ?, UVWXYZ
A. LMNO
B. MNOP
C. NOPQ
D. OPQR
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Correct: Option B. 2,3,4,5,6 letters.- If 15 Aug 2023 was Tuesday, then 15 Aug 2024 will be:
A. Wednesday
B. Thursday
C. Friday
D. Saturday
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Correct: Option B. 2024 is leap year → 2 odd days → Thursday.- 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
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Correct: Option B.- Select the pair: 8 : 56 :: 9 : ?
A. 63
B. 72
C. 81
D. 90
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Correct: Option B. n(n–1) → 9×8=72.- 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
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Correct: Option A. Diagonal +4.- 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
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Correct: Option B.- Dictionary order:
- 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
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Correct: Option A.- 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
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Correct: Option C.
General Science (25 Q)
- The SI unit of electric charge is:
A. Coulomb
B. Ampere
C. Volt
D. Ohm
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Correct: Option A.- Which of the following is NOT a vector quantity?
A. Velocity
B. Work
C. Force
D. Momentum
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Correct: Option B. Work is scalar.- The 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.- The process of conversion of vapour into liquid is called:
A. Evaporation
B. Condensation
C. Sublimation
D. Transpiration
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Correct: Option B.- Which lens is used to correct myopia?
A. Convex
B. Concave
C. Cylindrical
D. Bifocal
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Correct: Option B.- The chemical formula of baking soda is:
A. Na₂CO₃
B. NaHCO₃
C. NaCl
D. NaOH
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Correct: Option B.- Which metal is liquid at room temperature?
A. Gallium
B. Mercury
C. Cesium
D. Bromine
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Correct: Option B.- The powerhouse of the cell is:
A. Ribosome
B. Mitochondria
C. Golgi body
D. Lysosome
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Correct: Option B.- 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
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Correct: Option B.- Which of the following is a non-metal that conducts electricity?
A. Phosphorus
B. Sulphur
C. Graphite
D. Diamond
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Correct: Option C.- The unit of thermal conductivity is:
A. W m⁻¹ K⁻¹
B. J kg⁻¹ K⁻¹
C. W
D. J
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Correct: Option A.- The colour of light which deviates least while passing through a prism is:
A. Red
B. Violet
C. Yellow
D. Blue
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Correct: Option A.- The gas responsible for ripening of fruits is:
A. Methane
B. Ethylene
C. CO₂
D. O₂
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Correct: Option B.- Which part of the brain controls heartbeat?
A. Cerebrum
B. Medulla oblongata
C. Cerebellum
D. Hypothalamus
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Correct: Option B.- The reaction of an acid with a base is called:
A. Oxidation
B. Reduction
C. Neutralization
D. Hydrolysis
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Correct: Option C.- Which of the following has the highest specific heat?
A. Water
B. Copper
C. Iron
D. Mercury
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Correct: Option A.- The element with atomic number 30 is:
A. Zinc
B. Gallium
C. Copper
D. Nickel
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Correct: Option A.- The refractive index of glass with respect to air is approximately:
A. 1.33
B. 1.5
C. 2.0
D. 1.0
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Correct: Option B.- Which vitamin is fat-soluble?
A. Vitamin C
B. Vitamin B₁
C. Vitamin D
D. Vitamin B₁₂
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Correct: Option C.- The pitch of a sound depends on:
A. Amplitude
B. Frequency
C. Speed
D. Wavelength
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Correct: Option B.- Which of the following is NOT a greenhouse gas?
A. N₂
B. N₂O
C. CH₄
D. CO₂
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Correct: Option A.- The device to measure electric current is:
A. Voltmeter
B. Ammeter
C. Galvanometer
D. Potentiometer
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Correct: Option B.- The hardest natural substance is:
A. Silicon
B. Diamond
C. Quartz
D. Corundum
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Correct: Option B.- The value of ‘g’ decreases with:
A. Increase in altitude
B. Increase in depth
C. Both A and B
D. None
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Correct: Option C.- The number of chromosomes in a human sperm is:
A. 23
B. 46
C. 22
D. 44
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Correct: Option A. Haploid.
BETA
