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
AnswerCorrect: 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
AnswerCorrect: 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
AnswerCorrect: 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
AnswerCorrect: 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
AnswerCorrect: 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
AnswerCorrect: 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
AnswerCorrect: 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
AnswerCorrect: 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
AnswerCorrect: 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
AnswerCorrect: 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
AnswerCorrect: 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
AnswerCorrect: 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
AnswerCorrect: 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
AnswerCorrect: 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
AnswerCorrect: 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
AnswerCorrect: 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
AnswerCorrect: 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
AnswerCorrect: 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
AnswerCorrect: 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
AnswerCorrect: 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
AnswerCorrect: 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
AnswerCorrect: 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
AnswerCorrect: 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
AnswerCorrect: 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
AnswerCorrect: 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
AnswerCorrect: 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
AnswerCorrect: 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
AnswerCorrect: 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
AnswerCorrect: 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
AnswerCorrect: 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
AnswerCorrect: 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
AnswerCorrect: 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
AnswerCorrect: 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%
AnswerCorrect: 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
AnswerCorrect: 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
AnswerCorrect: 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
AnswerCorrect: 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
AnswerCorrect: 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
AnswerCorrect: 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
AnswerCorrect: 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
AnswerCorrect: 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
AnswerCorrect: 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
AnswerCorrect: 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
AnswerCorrect: 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
AnswerAnswer: 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
AnswerCorrect: 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%
AnswerCorrect: 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
AnswerCorrect: 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
AnswerCorrect: 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
AnswerCorrect: 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
AnswerCorrect: 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
AnswerCorrect: 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
AnswerCorrect: Option A. Explanation: –1 in each letter.
  1. Select the related word: Book : Paper :: Bread : ?
    A. Flour
    B. Wheat
    C. Dough
    D. Oven
AnswerCorrect: 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
AnswerCorrect: 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
AnswerCorrect: 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
AnswerCorrect: 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
AnswerCorrect: 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
AnswerCorrect: 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
AnswerCorrect: 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°
AnswerCorrect: 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
AnswerCorrect: 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
AnswerCorrect: 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
AnswerCorrect: 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
AnswerCorrect: Option C. Explanation: 23 + 19 = 42.
  1. Find odd pair:
    A. 8-64
    B. 6-36
    C. 5-25
    D. 7-42
AnswerCorrect: 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
AnswerCorrect: 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
AnswerCorrect: Option B. Explanation: Standard mirror reversal.
  1. Select related letters: ACEG : BDFH :: IKMO : ?
    A. JLNP
    B. HJLN
    C. JKNP
    D. IKNQ
AnswerCorrect: 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
AnswerCorrect: 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
AnswerCorrect: 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
AnswerCorrect: 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
AnswerCorrect: 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
AnswerCorrect: 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
AnswerCorrect: 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
AnswerCorrect: Option B. Explanation: Coulomb (C).
  1. Which organelle is called the “powerhouse of the cell”?
    A. Ribosome
    B. Mitochondrion
    C. Golgi body
    D. Lysosome
AnswerCorrect: Option B. Explanation: Mitochondrion produces ATP.
  1. The process of conversion of sugar into alcohol is
    A. Fermentation
    B. Oxidation
    C. Esterification
    D. Saponification
AnswerCorrect: Option A. Explanation: Yeast fermentation.
  1. The chemical formula of baking soda is
    A. Na₂CO₃
    B. NaHCO₃
    C. NaCl
    D. NaOH
AnswerCorrect: 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
AnswerCorrect: Option B. Explanation: Saturn (146 confirmed moons).
  1. The human body’s largest gland is
    A. Pancreas
    B. Liver
    C. Thyroid
    D. Pituitary
AnswerCorrect: Option B. Explanation: Liver.
  1. Which vitamin is synthesized by the skin in sunlight?
    A. A
    B. D
    C. E
    D. K
AnswerCorrect: 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
AnswerCorrect: 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
AnswerCorrect: 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
AnswerCorrect: Option C. Explanation: Aluminium (light, strong alloys).
  1. Which part of the brain controls heartbeat?
    A. Cerebrum
    B. Cerebellum
    C. Medulla oblongata
    D. Hypothalamus
AnswerCorrect: Option C. Explanation: Medulla.
  1. The pH of human blood is approximately
    A. 6.8
    B. 7.0
    C. 7.4
    D. 8.0
AnswerCorrect: 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
AnswerCorrect: Option B. Explanation: Dengue fever.
  1. The process of photosynthesis produces
    A. Glucose + O₂
    B. CO₂ + H₂O
    C. Starch + CO₂
    D. O₃ + H₂
AnswerCorrect: 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
AnswerCorrect: 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
AnswerCorrect: Option B. Explanation: Cobalt-60 gamma rays.
  1. The device to measure electric current is
    A. Voltmeter
    B. Ammeter
    C. Galvanometer
    D. Potentiometer
AnswerCorrect: Option B. Explanation: Ammeter.
  1. Which fibre is obtained from the stem of the plant?
    A. Cotton
    B. Jute
    C. Wool
    D. Silk
AnswerCorrect: Option B. Explanation: Jute (bast fibre).
  1. The atomic number of carbon is
    A. 4
    B. 6
    C. 8
    D. 12
AnswerCorrect: Option B. Explanation: 6 protons.
  1. The reaction between an acid and a base is called
    A. Oxidation
    B. Reduction
    C. Neutralization
    D. Decomposition
AnswerCorrect: Option C. Explanation: Neutralization.
  1. Which organ is affected by hepatitis?
    A. Heart
    B. Kidney
    C. Liver
    D. Lung
AnswerCorrect: Option C. Explanation: Liver inflammation.
  1. The sound frequency below 20 Hz is called
    A. Ultrasonic
    B. Infrasonic
    C. Audible
    D. Supersonic
AnswerCorrect: Option B. Explanation: Infrasonic.
  1. Which gas causes global warming?
    A. N₂
    B. O₂
    C. CO₂
    D. Ar
AnswerCorrect: 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
AnswerCorrect: 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
AnswerCorrect: Option A. Explanation: OPV zero dose at birth.