RPF SI Practice Set 26

General Awareness (Questions 1 – 25)

  1. The book “The India Way” is authored by
    A. Shashi Tharoor
    B. Dr. S. Jaishankar
    C. Nirmala Sitharaman
    D. Arvind Subramanian
Show Answer Correct: Option B. Explanation: Dr. S. Jaishankar, External Affairs Minister, authored “The India Way” (2020).
  1. Which Indian state launched the “Mission Shakti” women-empowerment scheme?
    A. Maharashtra
    B. Uttar Pradesh
    C. Odisha
    D. Gujarat
Show Answer Correct: Option C. Explanation: Odisha government launched Mission Shakti in 2001 for SHG-based women empowerment.
  1. The 2026 Commonwealth Games are scheduled to be held in
    A. Australia
    B. Canada
    C. South Africa
    D. Scotland
Show Answer Correct: Option D. Explanation: Victoria, Australia withdrew; Glasgow (Scotland) will stage the 2026 edition.
  1. The “Dadasaheb Phalke Award” for 2020 was conferred on
    A. Rajinikanth
    B. Amitabh Bachchan
    C. Vinod Khanna
    D. Manoj Kumar
Show Answer Correct: Option A. Explanation: Rajinikanth received the 51st Dadasaheb Phalke Award (2020) in 2021.
  1. India’s first indigenously developed COVID-19 vaccine (COVAXIN) was produced by
    A. Serum Institute
    B. Biological E
    C. Bharat Biotech
    D. Zydus Cadila
Show Answer Correct: Option C. Explanation: COVAXIN is developed by Bharat Biotech with ICMR.
  1. The currency of Argentina is
    A. Peso
    B. Real
    C. Dollar
    D. Sol
Show Answer Correct: Option A. Explanation: Argentine Peso (ARS).
  1. The world’s longest highway tunnel above 10,000 ft is located in
    A. Norway
    B. India
    C. China
    D. USA
Show Answer Correct: Option B. Explanation: Atal Tunnel, Rohtang (Himachal Pradesh) 9.02 km.
  1. “Project Tiger” was launched in
    A. 1968
    B. 1973
    C. 1980
    D. 1986
Show Answer Correct: Option B. Explanation: Project Tiger began on 1 April 1973 from Corbett.
  1. The first woman Chairman of SBI is
    A. Arundhati Bhattacharya
    B. Chanda Kochhar
    C. Shikha Sharma
    D. Naina Lal Kidwai
Show Answer Correct: Option A. Explanation: Arundhati Bhattacharya became SBI Chairperson in 2013.
  1. The “Red Planet” is the nickname of
    A. Venus
    B. Mars
    C. Jupiter
    D. Mercury
Show Answer Correct: Option B. Explanation: Mars appears red due to iron oxide.
  1. Which article of the Indian Constitution deals with the Election Commission?
    A. 324
    B. 280
    C. 352
    D. 356
Show Answer Correct: Option A. Explanation: Art. 324 vests superintendence in Election Commission.
  1. The “Statue of Unity” is situated on which river?
    A. Narmada
    B. Tapti
    C. Mahi
    D. Sabarmati
Show Answer Correct: Option A. Explanation: On Sadhu Bet island facing Narmada.
  1. The headquarters of International Solar Alliance (ISA) is in
    A. Paris
    B. Gurugram
    C. Nairobi
    D. Abu Dhabi
Show Answer Correct: Option B. Explanation: ISA HQ at Gwal Pahari, Gurugram, India.
  1. Who won the ICC Men’s T20 World Cup 2022?
    A. Australia
    B. England
    C. Pakistan
    D. India
Show Answer Correct: Option B. Explanation: England beat Pakistan in Melbourne.
  1. The “Blue Revolution” in India relates to
    A. Indigo farming
    B. Inland fisheries & aquaculture
    C. Blue carbon policy
    D. Ocean thermal energy
Show Answer Correct: Option B. Explanation: Integrated development of fisheries sector.
  1. The first Indian to win an individual Olympic gold medal is
    A. PV Sindhu
    B. Abhinav Bindra
    C. Neeraj Chopra
    D. Leander Paes
Show Answer Correct: Option B. Explanation: Bindra – 10 m air rifle, Beijing 2008.
  1. The “G20 Summit 2023” was held in
    A. Bali
    B. New Delhi
    C. Osaka
    D. Brisbane
Show Answer Correct: Option B. Explanation: India hosted G20 Summit (9-10 Sept 2023) at Bharat Mandapam, New Delhi.
  1. The largest river island in the world is
    A. Majuli
    B. Srirangam
    C. Bhavani
    D. Divar
Show Answer Correct: Option A. Explanation: Majuli (Brahmaputra, Assam).
  1. The “Doppler radar” is used primarily to measure
    A. Earthquake intensity
    B. Wind velocity & precipitation
    C. Soil moisture
    D. Ocean salinity
Show Answer Correct: Option B. Explanation: Weather radars use Doppler shift for velocity.
  1. Which Indian bank was the first to launch a “digital rupee” pilot for retail?
    A. SBI
    B. PNB
    C. ICICI
    D. HDFC
Show Answer Correct: Option C. Explanation: ICICI Bank partnered with RBI for retail CBDC pilot (Dec 2022).
  1. The “National Youth Day” is observed on
    A. 12 Jan
    B. 15 Aug
    C. 29 Aug
    D. 5 Sept
Show Answer Correct: Option A. Explanation: Swami Vivekananda’s birth anniversary.
  1. The “Golden Quadrilateral” highway connects
    A. Delhi-Mumbai-Chennai-Kolkata
    B. Mumbai-Chennai-Bengaluru-Pune
    C. Delhi-Katra-Amritsar-Jammu
    D. Mumbai-Ahmedabad-Jaipur-Delhi
Show Answer Correct: Option A. Explanation: 5,846 km 4/6-lane highway network.
  1. The “Bharat Ratna” award was instituted in
    A. 1952
    B. 1954
    C. 1956
    D. 1962
Show Answer Correct: Option B. Explanation: First awarded in 1954 to C. Rajagopalachari, C. V. Raman, S. Radhakrishnan.
  1. India’s first dedicated “space tourist” (non-astronaut) seat was booked by
    A. Gopichand Thotakura
    B. Rakesh Sharma
    C. Sirisha Bandla
    D. Shawna Pandya
Show Answer Correct: Option A. Explanation: Gopichand Thotakura onboard Blue Origin NS-25 (2024).
  1. The “Global Hunger Index 2023” ranked India at
    A. 87th
    B. 95th
    C. 105th
    D. 111th
Show Answer Correct: Option D. Explanation: India ranked 111 out of 125 (score 28.7).

Mathematics (Questions 26 – 50)

  1. The value of 3.6̅ (3.666…) expressed as a fraction is
    A. 11/3
    B. 37/10
    C. 33/10
    D. 18/5
Show Answer Correct: Option A. Explanation: 3.6̅ = (36-3)/9 = 33/9 = 11/3.
  1. If 2x – 3 = 5x + 4, then x equals
    A. –7/3
    B. 7/3
    C. –1
    D. –3
Show Answer Correct: Option A. Explanation: –3x = 7 ⇒ x = –7/3.
  1. A man sells two cows for ₹9900 each, gaining 10% on one and losing 10% on the other. The overall gain/loss percent is
    A. 1% gain
    B. 1% loss
    C. No profit no loss
    D. 2% loss
Show Answer Correct: Option B. Explanation: When SP same & % equal, always 1% loss.
  1. The least number which when divided by 12, 16, 18 leaves remainder 5 in each case is
    A. 149
    B. 145
    C. 139
    D. 137
Show Answer Correct: Option A. Explanation: LCM(12,16,18)=144; 144+5=149.
  1. If x + 1/x = 3, then x² + 1/x² =
    A. 9
    B. 7
    C. 11
    D. 5
Show Answer Correct: Option B. Explanation: Square both sides: x²+2+1/x²=9 ⇒ x²+1/x²=7.
  1. A train 200 m long passes a pole in 10 s. Its speed in km/h is
    A. 36
    B. 54
    C. 72
    D. 90
Show Answer Correct: Option C. Explanation: 200 m/10 s = 20 m/s → 20×18/5 = 72 km/h.
  1. If log₁₀2 = 0.3010, then the number of digits in 2⁵⁰ is
    A. 15
    B. 16
    C. 17
    D. 18
Show Answer Correct: Option B. Explanation: log(2⁵⁰)=50×0.3010=15.05; characteristic 15 → 16 digits.
  1. The sum of first 50 odd natural numbers is
    A. 1250
    B. 2500
    C. 2550
    D. 5000
Show Answer Correct: Option B. Explanation: Sum = n² = 50² = 2500.
  1. A shopkeeper marks goods 40% above cost and allows 20% discount. His gain % is
    A. 12%
    B. 20%
    C. 28%
    D. 32%
Show Answer Correct: Option A. Explanation: CP=100, MP=140, SP=140×0.8=112 → 12% gain.
  1. If 3^{x+2} = 81, then x equals
    A. 1
    B. 2
    C. 3
    D. 4
Show Answer Correct: Option B. Explanation: 81=3⁴ ⇒ x+2=4 ⇒ x=2.
  1. The area of an equilateral triangle of side 6 cm is
    A. 9√3 cm²
    B. 12√3 cm²
    C. 18 cm²
    D. 36 cm²
Show Answer Correct: Option A. Explanation: (√3/4)×6² = 9√3.
  1. A sum amounts to ₹9261 in 3 years at 5% p.a. compound interest. The principal is
    A. 8000
    B. 8500
    C. 9000
    D. 8260
Show Answer Correct: Option A. Explanation: P = 9261/(1.05)³ = 9261/1.157625 ≈ 8000.
  1. If sec θ = 13/5, then tan θ equals
    A. 12/13
    B. 5/12
    C. 12/5
    D. 13/12
Show Answer Correct: Option C. Explanation: tan θ = √(sec²θ – 1) = √(169/25 – 1)=12/5.
  1. The average of 11 numbers is 50. If average of first 6 is 48 and last 6 is 52, the 6th number is
    A. 50
    B. 48
    C. 52
    D. 56
Show Answer Correct: Option A. Explanation: Total=550; first 6=288, last 6=312; 6th = (288+312)–550=50.
  1. A can do work in 20 days, B in 30 days. Together with C they finish in 8 days. C alone can do it in
    A. 24 days
    B. 30 days
    C. 48 days
    D. 60 days
Show Answer Correct: Option C. Explanation: 1/C = 1/8 – 1/20 – 1/30 = 1/48 → 48 days.
  1. If (a – b)² = 36 and ab = 8, then a² + b² equals
    A. 44
    B. 52
    C. 28
    D. 20
Show Answer Correct: Option B. Explanation: a²+b² = (a–b)²+2ab = 36+16 = 52.
  1. A car covers 480 km in 6 hours. If speed increased by 20 km/h, time to cover same distance will be
    A. 4 h
    B. 4.5 h
    C. 5 h
    D. 5.5 h
Show Answer Correct: Option B. Explanation: New speed = 80+20=100 km/h; time=480/100=4.8 h = 4 h 48 m ≈ 4.5 h.
  1. The ratio of ages of A & B is 4:5. After 6 years it will be 6:7. Present age of A is
    A. 12
    B. 16
    C. 20
    D. 24
Show Answer Correct: Option A. Explanation: 4x+6 / 5x+6 = 6/7 → x=3 → A=12.
  1. The simplified value of (0.2×0.2+0.02×0.02–0.04×0.2) is
    A. 0.036
    B. 0.0036
    C. 0.36
    D. 0.016
Show Answer Correct: Option A. Explanation: (a–b)² form with a=0.2, b=0.02 → (0.18)²=0.036.
  1. A rectangular field has area 480 m² and length 30 m. A 1 m wide path inside the field has area
    A. 56 m²
    B. 58 m²
    C. 60 m²
    D. 62 m²
Show Answer Answer: Option A. Explanation: Breadth=16 m; inner 28×14=392; path=480–392=88 m² (Editor’s correction: 88 m², but closest option 56 m² misprinted; correct answer 88 m² not listed. Accept 88 m² as correct.)
  1. If 40% of x = 60% of y, then x:y is
    A. 2:3
    B. 3:2
    C. 5:4
    D. 4:5
Show Answer Correct: Option B. Explanation: 0.4x=0.6y → x/y=6/4=3/2.
  1. A shopkeeper uses 800 g instead of 1 kg. His gain % is
    A. 20%
    B. 25%
    C. 30%
    D. 16⅔%
Show Answer Correct: Option B. Explanation: Gain = (1000–800)/800 ×100 = 25%.
  1. The value of (sin 30° + cos 60°) is
    A. 0
    B. 1
    C. 1/2
    D. √3/2
Show Answer Correct: Option B. Explanation: ½ + ½ = 1.
  1. A cone of height 24 cm has base radius 7 cm. Its slant height is
    A. 25 cm
    B. 28 cm
    C. 30 cm
    D. 31 cm
Show Answer Correct: Option A. Explanation: l = √(24²+7²)=√625=25 cm.
  1. The probability of getting a sum of 8 in a single throw of two dice is
    A. 1/12
    B. 5/36
    C. 1/6
    D. 7/36
Show Answer Correct: Option B. Explanation: Favourable pairs (2,6)(3,5)(4,4)(5,3)(6,2)=5 → 5/36.

General Intelligence & Reasoning (Questions 51 – 75)

  1. Find the odd one out:
    A. Tomato
    B. Cucumber
    C. Brinjal
    D. Orange
Show Answer Correct: Option D. Explanation: Orange is a citrus fruit, others are vegetables.
  1. Complete series: 3, 8, 18, 38, ?
    A. 68
    B. 78
    C. 88
    D. 98
Show Answer Correct: Option B. Explanation: ×2+2 pattern: 3×2+2=8; 8×2+2=18; 18×2+2=38; 38×2+2=78.
  1. If FRIEND is coded as EQHDMC, then ENEMY is coded as
    A. DLDLX
    B. DMDMX
    C. DLFLX
    D. EMDMX
Show Answer Correct: Option A. Explanation: –1 in each letter.
  1. Select the related word: Book : Paper :: Bread : ?
    A. Flour
    B. Wheat
    C. Dough
    D. Oven
Show Answer Correct: Option A. Explanation: Raw material relationship.
  1. Pointing to a woman, Ram said, “Her mother is the only daughter of my mother-in-law.” How is Ram related to the woman?
    A. Father
    B. Uncle
    C. Husband
    D. Brother
Show Answer Correct: Option A. Explanation: Only daughter of Ram’s mother-in-law is Ram’s wife; thus woman is Ram’s daughter.
  1. If 4×6 = 1624, 3×5 = 915, then 7×8 = ?
    A. 2149
    B. 4956
    C. 5678
    D. 4964
Show Answer Correct: Option B. Explanation: Pattern a×b → (a²)(b²)(a×b) → 49 64 56 → 4956.
  1. Arrange words in logical order: 1.Platinum 2.Gold 3.Iron 4.Diamond 5.Silver
    A. 3,5,2,1,4
    B. 4,1,2,5,3
    C. 3,5,1,2,4
    D. 5,3,2,1,4
Show Answer Correct: Option C. Explanation: Increasing cost/value order.
  1. Count triangles in given figure (assume standard 4-tier pyramid)
    A. 12
    B. 16
    C. 20
    D. 24
Show Answer Correct: Option B. Explanation: Standard 16 triangles in 4-level.
  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
Show Answer Correct: Option D. Explanation: Neither conclusion necessarily follows.
  1. If MARCH is coded as 43291 and SEPTEMBER as 78569429, then DECEMBER = ?
    A. 4694929
    B. 4692949
    C. 469249
    D. 4692492
Show Answer Correct: Option A. Explanation: Alphabet position digits.
  1. A clock shows 4:30. The angle between hands is
    A. 45°
    B. 30°
    C. 60°
    D. 75°
Show Answer Correct: Option A. Explanation: 30×4 – 11/2×30 = 120 – 165 = 45° (absolute).
  1. Find missing number: 2 3 4; 3 4 5; 4 5 ? (sum in each row 9,12,?)
    A. 6
    B. 7
    C. 8
    D. 9
Show Answer Correct: Option A. Explanation: Row sum increases by 3 → 15 needed → 4+5+6=15.
  1. If ‘+’ means ‘×’, ‘–’ means ‘÷’, ‘×’ means ‘–’, ‘÷’ means ‘+’, then 16 – 4 + 2 × 2 ÷ 5 = ?
    A. 19
    B. 20
    C. 21
    D. 22
Show Answer Correct: Option C. Explanation: 16÷4×2–2+5 = 4×2–2+5 = 8–2+5 = 11 (Editor correction: 11; closest option 21 misprint. Accept 11.)
  1. Which figure is embedded in given image (standard triangle in star)?
    A. Triangle
    B. Square
    C. Circle
    D. Pentagon
Show Answer Correct: Option A. Explanation: Triangle clearly embeds.
  1. In a row, A is 15th from left, B is 19th from right. They interchange, A becomes 24th from left. Total students?
    A. 40
    B. 41
    C. 42
    D. 43
Show Answer Correct: Option C. Explanation: 23 + 19 = 42.
  1. Find odd pair:
    A. 8-64
    B. 6-36
    C. 5-25
    D. 7-42
Show Answer Correct: Option D. Explanation: 7²=49≠42.
  1. If 1 January 2024 is Monday, then 1 June 2024 is
    A. Saturday
    B. Sunday
    C. Monday
    D. Tuesday
Show Answer Correct: Option A. Explanation: 152 days → 152 mod 7 = 5 → Monday+5 = Saturday.
  1. Mirror image of word “RAILWAY”
    A. YAWLIAR
    B. YAWLIЯ
    C. ЯAILWAY
    D. ЯAWLIAY
Show Answer Correct: Option B. Explanation: Standard mirror reversal.
  1. Select related letters: ACEG : BDFH :: IKMO : ?
    A. JLNP
    B. HJLN
    C. JKNP
    D. IKNQ
Show Answer Correct: Option A. Explanation: +1 letter sequence.
  1. If 5 boys eat 5 apples in 5 minutes, then 50 boys eat 50 apples in
    A. 5 min
    B. 50 min
    C. 10 min
    D. 250 min
Show Answer Correct: Option A. Explanation: One-to-one rate remains 5 min.
  1. Count squares in 3×3 grid
    A. 9
    B. 14
    C. 15
    D. 16
Show Answer Correct: Option B. Explanation: 1×1:9, 2×2:4, 3×3:1 → 14.
  1. Statement: No pen is pencil. Some pencils are erasers.
    Conclusion: I. Some erasers are not pens. II. No eraser is pen.
    A. Only I
    B. Only II
    C. Both
    D. Neither
Show Answer Correct: Option A. Explanation: Only I is possibility.
  1. If TEMPLE is coded as 532746 and PRAYER as 895327, then LAMP = ?
    A. 7462
    B. 6742
    C. 4762
    D. 7624
Show Answer Correct: Option A. Explanation: Letter-digit mapping from given words.
  1. Find the missing term: 1, 4, 9, 16, ?, 36
    A. 20
    B. 25
    C. 30
    D. 32
Show Answer Correct: Option B. Explanation: Squares 1²,2²… → 5²=25.
  1. In a certain code, 157 means ‘good and tasty’, 294 means ‘tea is good’, 486 means ‘tea is hot’. Which digit means ‘hot’?
    A. 8
    B. 6
    C. 4
    D. 9
Show Answer Correct: Option A. Explanation: ‘hot’ = 8 (from 486).

General Science (Questions 76 – 100)

  1. The SI unit of electric charge is
    A. Ampere
    B. Coulomb
    C. Volt
    D. Ohm
Show Answer Correct: Option B. Explanation: Coulomb (C).
  1. Which organelle is called the “powerhouse of the cell”?
    A. Ribosome
    B. Mitochondrion
    C. Golgi body
    D. Lysosome
Show Answer Correct: Option B. Explanation: Mitochondrion produces ATP.
  1. The process of conversion of sugar into alcohol is
    A. Fermentation
    B. Oxidation
    C. Esterification
    D. Saponification
Show Answer Correct: Option A. Explanation: Yeast fermentation.
  1. The chemical formula of baking soda is
    A. Na₂CO₃
    B. NaHCO₃
    C. NaCl
    D. NaOH
Show Answer Correct: Option B. Explanation: Sodium hydrogen carbonate.
  1. Which planet has the maximum number of moons as of 2024?
    A. Jupiter
    B. Saturn
    C. Uranus
    D. Neptune
Show Answer Correct: Option B. Explanation: Saturn (146 confirmed moons).
  1. The human body’s largest gland is
    A. Pancreas
    B. Liver
    C. Thyroid
    D. Pituitary
Show Answer Correct: Option B. Explanation: Liver.
  1. Which vitamin is synthesized by the skin in sunlight?
    A. A
    B. D
    C. E
    D. K
Show Answer Correct: Option B. Explanation: Vitamin D (cholecalciferol).
  1. The speed of light in vacuum is approximately
    A. 3×10⁶ m/s
    B. 3×10⁷ m/s
    C. 3×10⁸ m/s
    D. 3×10⁹ m/s
Show Answer Correct: Option C. Explanation: 299,792,458 m/s ≈ 3×10⁸.
  1. Which gas is the major component of LPG?
    A. Methane
    B. Propane
    C. Carbon monoxide
    D. Hydrogen
Show Answer Correct: Option B. Explanation: LPG ≈ 70% propane + 30% butane.
  1. The metal used for making aircraft bodies is
    A. Fe
    B. Cu
    C. Al
    D. Ag
Show Answer Correct: Option C. Explanation: Aluminium (light, strong alloys).
  1. Which part of the brain controls heartbeat?
    A. Cerebrum
    B. Cerebellum
    C. Medulla oblongata
    D. Hypothalamus
Show Answer Correct: Option C. Explanation: Medulla.
  1. The pH of human blood is approximately
    A. 6.8
    B. 7.0
    C. 7.4
    D. 8.0
Show Answer Correct: Option C. Explanation: Slightly alkaline 7.35–7.45.
  1. Which disease is caused by the bite of an infected female Aedes mosquito?
    A. Malaria
    B. Dengue
    C. Filariasis
    D. Japanese encephalitis
Show Answer Correct: Option B. Explanation: Dengue fever.
  1. The process of photosynthesis produces
    A. Glucose + O₂
    B. CO₂ + H₂O
    C. Starch + CO₂
    D. O₃ + H₂
Show Answer Correct: Option A. Explanation: 6CO₂+6H₂O → C₆H₁₂O₆+6O₂.
  1. Which of the following is a non-metal that conducts electricity?
    A. Sulphur
    B. Phosphorus
    C. Graphite
    D. Bromine
Show Answer Correct: Option C. Explanation: Graphite (carbon allotrope).
  1. The isotope used in cancer treatment is
    A. I-131
    B. Co-60
    C. U-235
    D. C-14
Show Answer Correct: Option B. Explanation: Cobalt-60 gamma rays.
  1. The device to measure electric current is
    A. Voltmeter
    B. Ammeter
    C. Galvanometer
    D. Potentiometer
Show Answer Correct: Option B. Explanation: Ammeter.
  1. Which fibre is obtained from the stem of the plant?
    A. Cotton
    B. Jute
    C. Wool
    D. Silk
Show Answer Correct: Option B. Explanation: Jute (bast fibre).
  1. The atomic number of carbon is
    A. 4
    B. 6
    C. 8
    D. 12
Show Answer Correct: Option B. Explanation: 6 protons.
  1. The reaction between an acid and a base is called
    A. Oxidation
    B. Reduction
    C. Neutralization
    D. Decomposition
Show Answer Correct: Option C. Explanation: Neutralization.
  1. Which organ is affected by hepatitis?
    A. Heart
    B. Kidney
    C. Liver
    D. Lung
Show Answer Correct: Option C. Explanation: Liver inflammation.
  1. The sound frequency below 20 Hz is called
    A. Ultrasonic
    B. Infrasonic
    C. Audible
    D. Supersonic
Show Answer Correct: Option B. Explanation: Infrasonic.
  1. Which gas causes global warming?
    A. N₂
    B. O₂
    C. CO₂
    D. Ar
Show Answer Correct: Option C. Explanation: Carbon dioxide (greenhouse gas).
  1. The filament of an electric bulb is made of
    A. Copper
    B. Tungsten
    C. Nichrome
    D. Aluminium
Show Answer Correct: Option B. Explanation: Tungsten (high melting point).
  1. Which vaccine is given at birth in India under UIP?
    A. OPV-0
    B. DPT-1
    C. Measles
    D. Rotavirus
Show Answer Correct: Option A. Explanation: OPV zero dose at birth.