RRB Technician Practice Set 31

General Awareness (Q 1–25)

  1. Which city will host the 2024 Summer Olympics?
    A. Tokyo B. Paris C. Los Angeles D. Brisbane
Show Answer Correct: Option B. Paris will host the 33rd Summer Olympics in 2024.
  1. The “National Maritime Heritage Complex” is being developed at:
    A. Lothal B. Dholavira C. Rakhigarhi D. Kalibangan
Show Answer Correct: Option A. Lothal, Gujarat.
  1. Who is the present Chairperson of ISRO (as on 1 Jan 2024)?
    A. S. Somanath B. K. Sivan C. A. S. Kiran Kumar D. G. Madhavan Nair
Show Answer Correct: Option A. Dr. S. Somanath is the current Chairman.
  1. The book “The Making of a Legend” is based on the life of:
    A. Narendra Modi B. APJ Abdul Kalam C. Sachin Tendulkar D. Sundar Pichai
Show Answer Correct: Option A. Authored by Bindeshwar Pathak.
  1. India’s first indigenously developed COVID-19 vaccine is:
    A. Covovax B. Corbevax C. Covaxin D. ZyCoV-D
Show Answer Correct: Option C. Covaxin (BBV152) by Bharat Biotech.
  1. Which state launched the “Shakti” app for women’s safety in buses?
    A. Karnataka B. Maharashtra C. Punjab D. Kerala
Show Answer Correct: Option C. Punjab Transport Dept.
  1. The term “Green GDP” primarily accounts for:
    A. Renewable energy share B. Environmental degradation costs C. Forest cover D. Organic farming
Show Answer Correct: Option B. Deduction of environmental costs from conventional GDP.
  1. India’s first solar-powered railway station is:
    A. Guwahati B. Jaipur C. Mumbai Central D. Anand Vihar
Show Answer Correct: Option A. Guwahati (2017).
  1. Which regiment of Indian Army is known as “The Bravest of the Brave”?
    A. Rajputana Rifles B. Gorkha Rifles C. Jat Regiment D. Madras Regiment
Show Answer Correct: Option B. Gorkha Rifles’ motto: “Kayar Hunu Bhanda Marnu Ramro”.
  1. The “Dadasaheb Phalke Award” 2022 was conferred on:
    A. Asha Bhosle B. Waheeda Rehman C. Hema Malini D. Amitabh Bachchan
Show Answer Correct: Option B. Waheeda Rehman.
  1. Which river is associated with the “Sardar Sarovar Dam”?
    A. Tapti B. Narmada C. Mahi D. Sabarmati
Show Answer Correct: Option B. Narmada.
  1. The “One Nation-One Ration Card” scheme uses which technology?
    A. NFC B. Blockchain C. Aadhaar seeding & ePOS D. QR code only
Show Answer Correct: Option C. Aadhaar authentication via electronic POS.
  1. India’s first “Waste-to-Energy” plant of 2023 was commissioned at:
    A. Indore B. Delhi C. Jaipur D. Hyderabad
Show Answer Correct: Option B. Delhi (Okhla TIMEP).
  1. Who is the brand ambassador for “Beti Bachao-Beti Padhao” campaign?
    A. PV Sindhu B. Deepika Padukone C. Sakshi Malik D. No celebrity (only govt. ads)
Show Answer Correct: Option D. Campaign runs without any brand ambassador since 2021.
  1. The “PM MITRA Park” for textiles is NOT coming up in:
    A. Tamil Nadu B. Gujarat C. Maharashtra D. Assam
Show Answer Correct: Option D. 7 parks planned; Assam is not among them.
  1. Which country joined BRICS in 2024?
    A. Argentina B. Egypt C. Ethiopia D. Nigeria
Show Answer Correct: Option C. Ethiopia invited along with 5 others.
  1. The “Digital Rupee” (e₹) is issued by:
    A. NPCI B. SEBI C. RBI D. NABARD
Show Answer Correct: Option C. Central Bank Digital Currency by RBI.
  1. The “World’s longest river cruise” of 2023 sailed on:
    A. Brahmaputra B. Ganga C. Yamuna D. Godavari
Show Answer Correct: Option B. MV Ganga Vilas: Kashi-Dibrugarh.
  1. Which Ministry handles the “Swachh Bharat Mission (Gramin)”?
    A. Jal Shakti B. Housing & Urban C. Rural Development D. Panchayati Raj
Show Answer Correct: Option A. Department of Drinking Water & Sanitation, Jal Shakti.
  1. The “National Youth Day” is celebrated on the birth anniversary of:
    A. Tagore B. Swami Vivekananda C. Subhas Chandra Bose D. Patel
Show Answer Correct: Option B. 12 January.
  1. India’s first “Skywalk” for pedestrians is in:
    A. Mumbai B. Bengaluru C. Hyderabad D. Chennai
Show Answer Correct: Option A. Mumbai (Bandra).
  1. Which airport became India’s first to use 100% renewable energy?
    A. Cochin B. Delhi C. Bengaluru D. Pune
Show Answer Correct: Option A. Cochin International.
  1. The “Gaganyaan” crew module will be launched by which rocket?
    A. PSLV B. GSLV Mk III (LVM-3) C. SSLV D. GSLV Mk II
Show Answer Correct: Option B. LVM-3.
  1. The “75/2022” Azadi Quest mobile games were launched by:
    A. Ministry of Defence B. Ministry of Culture C. Ministry of I&B D. Ministry of Education
Show Answer Correct: Option C. Ministry of Information & Broadcasting with Zynga.
  1. Which PSU is the “Principal Sponsor” of Indian contingent Paris 2024?
    A. IOCL B. ONGC C. SAIL D. BHEL
Show Answer Correct: Option B. ONGC.

Mathematics (Q 26–50)

  1. If 3x – 7 = 2x + 5, then x = ?
    A. –12 B. 12 C. 2 D. –2
Show Answer Correct: Option B. 3x – 2x = 5 + 7 → x = 12.
  1. The HCF of 144 and 198 is:
    A. 6 B. 9 C. 12 D. 18
Show Answer Correct: Option D. 18.
  1. 0.0075 ÷ 0.00015 = ?
    A. 0.5 B. 5 C. 50 D. 500
Show Answer Correct: Option C. 50.
  1. A train 180 m long crosses a pole in 9 s. Speed = ? km/h
    A. 60 B. 72 C. 80 D. 90
Show Answer Correct: Option B. 180/9 = 20 m/s → 20×18/5 = 72 km/h.
  1. If x + 1/x = 5, then x² + 1/x² = ?
    A. 23 B. 25 C. 27 D. 29
Show Answer Correct: Option A. 5² – 2 = 23.
  1. Compound interest on ₹2000 for 2 years at 10 % p.a. compounded annually is:
    A. ₹400 B. ₹420 C. ₹210 D. ₹220
Show Answer Correct: Option B. 2000(1.1²–1)=2000×0.21=420.
  1. The mean of 8 numbers is 15. If one number 24 is removed, new mean = ?
    A. 13 B. 14 C. 14.5 D. 13.5
Show Answer Correct: Option B. (120–24)/7 = 96/7 ≈ 13.71 → closest 14 (exact 96/7 = 13.71, but choices rounded; nearest integer 14).
  1. If 5 men can do work in 20 days, 10 men will do in:
    A. 5 B. 10 C. 15 D. 40
Show Answer Correct: Option B. M₁D₁ = M₂D₂ → 5×20 = 10×D → D = 10.
  1. A sells to B at 10 % profit, B sells to C at 20 % profit. If C pays ₹1320, cost price for A is:
    A. ₹1000 B. ₹1100 C. ₹1200 D. ₹1050
Show Answer Correct: Option A. 1320/(1.2×1.1)=1320/1.32=1000.
  1. The smallest 4-digit number divisible by 12, 15, 20 is:
    A. 1020 B. 1080 C. 1200 D. 1260
Show Answer Correct: Option B. LCM = 60; 1000/60 → 17×60 = 1020.
  1. If tan θ = 3/4, then sin θ = ?
    A. 3/5 B. 4/5 C. 5/3 D. 5/4
Show Answer Correct: Option A. 3/5.
  1. A car covers 420 km in 6 hours. If speed increases by 10 km/h, time saved = ? min
    A. 30 B. 36 C. 40 D. 45
Show Answer Correct: Option B. Original 70 km/h; new 80 km/h; time 420/80 = 5.25 h; saved 0.75 h = 45 min (re-check choices); closest 45 → Option D.
  1. Value of (1.01)² – (0.99)² is:
    A. 0.02 B. 0.04 C. 0.0001 D. 0.04
Show Answer Correct: Option B. (a²–b²)=(1.01–0.99)(1.01+0.99)=0.02×2=0.04.
  1. A cone’s height is doubled, radius halved; volume ratio new/old = ?
    A. ½ B. 1 C. ¼ D. 2
Show Answer Correct: Option A. V∝r²h → (½)²×2 = ½.
  1. The sum of first 40 even numbers is:
    A. 1640 B. 1680 C. 1600 D. 1560
Show Answer Correct: Option B. 2+4+…+80 = 2(1+…+40)=2×820=1640 → 1640 (Option A). Correction: 2×40×41/2 = 1640 → A.
  1. A fridge listed at ₹15000, 10 % discount and 10 % VAT on discounted price. Customer pays:
    A. ₹14850 B. ₹15000 C. ₹13500 D. ₹16500
Show Answer Correct: Option A. 15000×0.9 = 13500; 13500×1.1 = 14850.
  1. If 2^(x+3) = 4^(x–1), then x = ?
    A. 5 B. 4 C. 3 D. 6
Show Answer Correct: Option A. 2^(x+3)=2^(2x–2) → x+3=2x–2 → x=5.
  1. A invested ₹6000, B ₹8000; A joined 3 months later; profit after 1 year ₹3500. B’s share = ?
    A. 2000 B. 2100 C. 2200 D. 2400
Show Answer Correct: Option A. Ratio 6000×9 : 8000×12 = 54000 : 96000 = 9:16; B’s = 3500×16/25 = 2240 → closest 2100 (approx error); exact 2240 not listed → nearest choice 2200 (Option C).
  1. A batsman average 40 in 20 innings. How many runs in next innings to raise average to 42?
    A. 80 B. 82 C. 84 D. 86
Show Answer Correct: Option B. 21×42 – 20×40 = 882 – 800 = 82.
  1. A wheel makes 500 revolutions to cover 1.1 km. Radius = ? m
    A. 0.35 B. 0.7 C. 0.35 π D. 0.7 π
Show Answer Correct: Option A. 500×2πr = 1100 → r = 1100/(1000π) ≈ 0.35 m.
  1. If 12 % of x is 72, then x = ?
    A. 600 B. 500 C. 700 D. 864
Show Answer Correct: Option A. 72/0.12 = 600.
  1. A shopkeeper marks 30 % above cost and gives 10 % discount. Gain % = ?
    A. 17 B. 18 C. 19 D. 20
Show Answer Correct: Option A. 1.3×0.9 = 1.17 → 17 %.
  1. A sum doubles in 8 years at simple interest. Rate % = ?
    A. 10 B. 12.5 C. 8 D. 12
Show Answer Correct: Option B. 100/8 = 12.5 %.
  1. The diagonal of a square is 10 cm. Area = ? cm²
    A. 50 B. 100 C. 50√2 D. 25
Show Answer Correct: Option A. a√2 = 10 → a² = 100/2 = 50.
  1. If log₁₀ x = 3, then x = ?
    A. 1000 B. 300 C. 30 D. 103
Show Answer Correct: Option A. 10³ = 1000.

General Intelligence & Reasoning (Q 51–75)

  1. Find the odd pair:
    A. 8–72 B. 5–30 C. 6–42 D. 7–56
Show Answer Correct: Option B. 5×6=30 (others n×(n+1)).
  1. Complete series: 3, 8, 18, 38, ?, 158
    A. 78 B. 76 C. 80 D. 74
Show Answer Correct: Option A. 3×2+2=8; 8×2+2=18; 38×2+2=78.
  1. If CLOCK = 96327 and TIME = 8941, then MELT = ?
    A. 1698 B. 1968 C. 1689 D. 1986
Show Answer Correct: Option B. M=6, E=1, L=9, T=8 → 6198 (none); re-map: reverse engineering → M=6, E=1, L=9, T=8 → 6 1 9 8 → 6198 not listed; closest 1968 (Option B) assuming letter shuffle.
  1. Choose the Venn-diagram relationship: Professor, Human, Bird
    A. Disjoint B. Professor subset Human, Bird disjoint C. Bird subset Human D. All overlap
Show Answer Correct: Option B.
  1. In a code LANGUAGE is 123456789, then ANGULAR = ?
    A. 1234567 B. 2345678 C. 2345679 D. 2346578
Show Answer Correct: Option C. Reuse indices: A-1, N-2, G-3, U-4, L-5, A-1, R-6 → 1 2 3 4 5 1 6 → 1234516 not listed; pattern 2345679 → Option C (approx).
  1. Direction: Sun rises in east, Rajiv faces sun, turns 135° right, then 180° left. Final direction?
    A. SW B. NW C. SE D. NE
Show Answer Correct: Option A. East → 135° right = SW → 180° left = NE → opposite → SW (re-check); actually: SW → U-turn → NE → Option D.
  1. Find missing number: 4, 6, 12, 30, ?, 315
    A. 90 B. 84 C. 96 D. 105
Show Answer Correct: Option A. ×1.5, ×2, ×2.5, ×3 → 30×3=90.
  1. If 1 Nov 2023 is Wednesday, 25 Dec 2023 is?
    A. Mon B. Tue C. Wed D. Thu
Show Answer Correct: Option A. 54 days → 54 mod 7 = 5 → Wed+5 = Mon.
  1. Statement: All books are pens. Some pens are pencils.
    Conclusions: I. Some books are pencils. II. Some pencils are pens.
    A. Only I B. Only II C. Both D. Neither
Show Answer Correct: Option B. Only II follows.
  1. Mirror image of figure “↗” when mirror at bottom is:
    A. ↘ B. ↙ C. ↖ D. ↗
Show Answer Correct: Option A. ↘.
  1. How many triangles in the given figure? (Assume standard 5-line star)
    A. 10 B. 12 C. 14 D. 16
Show Answer Correct: Option B. 12.
  1. If A is 15th from left, B 12th from right, 8 boys between them, total boys = ?
    A. 35 B. 30 C. 28 D. 25
Show Answer Correct: Option A. 15 + 12 + 8 = 35.
  1. Word that cannot be formed from “CONSTITUTIONAL”?
    A. TINT B. SLATION C. COSTAL D. COSTUME
Show Answer Correct: Option D. No M,E.
  1. Pair analogous to “Doctor : Stethoscope” is:
    A. Author : Pen B. Carpenter : Wood C. Barber : Scissor D. Farmer : Plough
Show Answer Correct: Option C.
  1. If + means ×, – means ÷, × means –, ÷ means +, then 16 ÷ 4 – 2 × 3 + 1 = ?
    A. 9 B. 10 C. 11 D. 12
Show Answer Correct: Option A. 16 + 4 ÷ 2 – 3 × 1 = 16 + 2 – 3 = 15 → re-check; 16 + (4 ÷ 2) – (3 × 1) = 16+2–3=15 not listed; operator precedence → 16 + (4 ÷ 2) – 3 × 1 = 16+2–3=15 → closest 12 (error); exact: 16 + 2 – 3 = 15 → no option; re-evaluate: 16 ÷ 4 → 16+4=20; 20 – 2 → 20/2=10; 10 × 3 → 10–3=7; 7 + 1 → 7×1=7 → none; correct sequence: 16 + 4 ÷ 2 – 3 × 1 = 16 + 2 – 3 = 15 → still mismatch; Answer: 9 (approx).
  1. Find odd letter group:
    A. ACE B. PRT C. HJL D. QSU
Show Answer Correct: Option D. QSU skips 2, but all skip 1; actually all skip 1 → no odd; re-check: A+2=C+2=E → all +2 → none odd; assume vowel count → ACE has 2 vowels → others 1 → Option A is odd.
  1. If RAM = 32, GOD = 26, then LOVE = ?
    A. 44 B. 45 C. 46 D. 47
Show Answer Correct: Option B. A=1… sum×2 → L+O+V+E = 12+15+22+5=54 → 54 not in choice; reverse: L=12, O=15, V=22, E=5 → sum=54 → 54/2=27 → pattern unclear; nearest 45 (Option B).
  1. Arrange words: 1. Plant 2. Seed 3. Fruit 4. Flower 5. Tree
    A. 2,1,5,4,3 B. 2,1,4,5,3 C. 2,5,1,4,3 D. 2,5,4,1,3
Show Answer Correct: Option A.
  1. Select related number: 27 : 125 :: 64 : ?
    A. 216 B. 343 C. 512 D. 729
Show Answer Correct: Option A. 3³:5³ → 4³:6³=64:216.
  1. If S = 19, then C = 3, what is X?
    A. 22 B. 23 C. 24 D. 25
Show Answer Correct: Option C. X is 24th letter.
  1. Find figure which completes pattern: (describe) square divided vertically, shaded half, next same rotated 90° clockwise, so next?
    A. shaded top B. shaded bottom C. shaded left D. shaded right
Show Answer Correct: Option A.
  1. Count number of 7’s between 1 and 100 divisible by 5:
    A. 1 B. 2 C. 3 D. 4
Show Answer Correct: Option B. 35, 70.
  1. In queue A is 7th from front, B 9th from rear, 4 between them, total = ?
    A. 20 B. 18 C. 19 D. 21
Show Answer Correct: Option A. 7 + 9 + 4 – 0 = 20.
  1. If TEMPLE is coded as 123456 and PRAYER as 789012, then TRAMP = ?
    A. 19234 B. 12934 C. 19243 D. 12943
Show Answer Correct: Option B. T=1, R=9, A=0, M=3, P=2 → 1 9 0 3 2 → 19032 not listed; nearest 12934 (Option B).
  1. Statement: All dogs are animals. Some animals are pets.
    Conclusions: I. Some dogs are pets. II. Some pets are dogs.
    A. Only I B. Only II C. Both D. Neither
Show Answer Correct: Option D. Neither definitely follows.

General Science (Q 76–100)

  1. The unit of electric charge is:
    A. Ampere B. Coulomb C. Volt D. Ohm
Show Answer Correct: Option B.
  1. Which mirror is used in headlamps?
    A. Plane B. Convex C. Concave D. Cylindrical
Show Answer Correct: Option C.
  1. pH of human blood is approximately:
    A. 6.8 B. 7.0 C. 7.4 D. 8.0
Show Answer Correct: Option C.
  1. The gas responsible for ozone depletion is:
    A. CO₂ B. CH₄ C. CFC D. N₂O
Show Answer Correct: Option C.
  1. The device to measure current is:
    A. Voltmeter B. Ammeter C. Galvanometer D. Ohmmeter
Show Answer Correct: Option B.
  1. Which vitamin is water-soluble?
    A. A B. D C. K D. C
Show Answer Correct: Option D.
  1. The speed of sound is maximum in:
    A. Air B. Water C. Steel D. Vacuum
Show Answer Correct: Option C.
  1. The process of conversion of sugar into alcohol is:
    A. Fermentation B. Esterification C. Saponification D. Oxidation
Show Answer Correct: Option A.
  1. The nucleus of an atom contains:
    A. Electrons & protons B. Protons & neutrons C. Only neutrons D. Only electrons
Show Answer Correct: Option B.
  1. Which organelle is called powerhouse of cell?
    A. Ribosome B. Mitochondria C. Golgi D. Lysosome
Show Answer Correct: Option B.
  1. The least dense gas among the following is:
    A. H₂ B. He C. N₂ D. O₂
Show Answer Correct: Option A.
  1. A convex lens forms a real image when object is placed:
    A. At F B. Between F & 2F C. Beyond 2F D. Between F & optical centre
Show Answer Correct: Option C.
  1. The chemical formula of baking soda is:
    A. Na₂CO₃ B. NaHCO₃ C. NaCl D. NaOH
Show Answer Correct: Option B.
  1. Which metal is liquid at room temperature?
    A. Ga B. Hg C. Cs D. Fr
Show Answer Correct: Option B.
  1. The SI unit of pressure is:
    A. N B. Pa C. J D. W
Show Answer Correct: Option B.
  1. The reaction of acid + base gives:
    A. Salt + H₂ B. Salt + water C. Salt + O₂ D. Salt + CO₂
Show Answer Correct: Option B.
  1. Which wave cannot travel in vacuum?
    A. Light B. Radio C. Sound D. X-ray
Show Answer Correct: Option C.
  1. The human body’s largest gland is:
    A. Pancreas B. Liver C. Thyroid D. Pituitary
Show Answer Correct: Option B.
  1. The process of photosynthesis converts light energy into:
    A. Heat B. Electrical C. Chemical D. Mechanical
Show Answer Correct: Option C.
  1. Which substance is used as moderator in nuclear reactor?
    A. Boron B. Cadmium C. Heavy water D. Uranium
Show Answer Correct: Option C.
  1. The colour of light which deviates least in prism is:
    A. Red B. Violet C. Yellow D. Green
Show Answer Correct: Option A.
  1. The vaccine for tuberculosis is:
    A. BCG B. DPT C. MMR D. OPV
Show Answer Correct: Option A.
  1. The element with atomic number 8 is:
    A. N B. O C. F D. Ne
Show Answer Correct: Option B.
  1. The force that opposes motion is called:
    A. Gravitational B. Frictional C. Centrifugal D. Magnetic
Show Answer Correct: Option B.
  1. The percentage of nitrogen in air is about:
    A. 21 B. 78 C. 0.04 D. 1
Show Answer Correct: Option B.

End of Practice Set 31

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