RPF SI Practice Set 38

General Awareness (Questions 1 – 25)

  1. The “Duckworth-Lewis-Stern” method is associated with which sport? A. Football
    B. Cricket
    C. Hockey
    D. Tennis
Show Answer Correct: Option B. The DLS method is a rain-rule formula used to reset targets in limited-overs cricket matches.
  1. Who is the author of the book “The Unending Game”? A. Ajit Doval
    B. Vikram Sood
    C. R&AW
    D. K. Subrahmanyam
Show Answer Correct: Option B. Vikram Sood, former RAW chief, penned this espionage memoir.
  1. India’s first indigenously built nuclear-powered submarine is: A. INS Arihant
    B. INS Chakra
    C. INS Vela
    D. INS Kalvari
Show Answer Correct: Option A. INS Arihant (SSBN) was commissioned in 2016.
  1. The 2028 Summer Olympics will be hosted by: A. Paris
    B. Los Angeles
    C. Brisbane
    D. Milan-Cortina
Show Answer Correct: Option B. LA will host the Games for the third time.
  1. Which state launched the “Mission Shakti” campaign for women’s safety? A. Maharashtra
    B. Uttar Pradesh
    C. Odisha
    D. Rajasthan
Show Answer Correct: Option B. UP government’s 2020 initiative.
  1. The “SVAMITVA” scheme aims to provide: A. Rural housing
    B. Property cards to rural owners
    C. Crop insurance
    D. Digital literacy
Show Answer Correct: Option B. Survey of villages and mapping with improvised technology in village areas.
  1. India’s first floating solar plant of 1 MW is located on which lake? A. Chilika
    B. Vembanad
    C. Ulsoor
    D. Saifabad (Telangana)
Show Answer Correct: Option D. On Saifabad lake in Ramagundam, Telangana.
  1. The “BrahMos” missile is a joint venture between India and: A. Israel
    B. Russia
    C. France
    D. USA
Show Answer Correct: Option B. BrahMos is Indo-Russian supersonic cruise missile.
  1. Who won the 2023 Nobel Peace Prize? A. Malala Yousafzai
    B. Narges Mohammadi
    C. Maria Ressa
    D. Abiy Ahmed
Show Answer Correct: Option B. Iranian human-rights activist.
  1. The currency of Argentina is: A. Peso
    B. Real
    C. Dollar
    D. Bolívar
Show Answer Correct: Option A. Argentine Peso.
  1. “Project Tiger” was launched in: A. 1970
    B. 1973
    C. 1980
    D. 1965
Show Answer Correct: Option B. 1973 from Corbett.
  1. The largest river island in India is: A. Majuli
    B. Srirangam
    C. Divar
    D. Bhavani
Show Answer Correct: Option A. Majuli on Brahmaputra in Assam.
  1. Which Article of the Indian Constitution deals with the Right to Property? A. 21
    B. 19
    C. 300A
    D. 32
Show Answer Correct: Option C. Now a legal right, not fundamental.
  1. The “Gaganyaan” mission will carry astronauts in: A. LVM-3
    B. PSLV
    C. GSLV-F10
    D. SSLV
Show Answer Correct: Option A. LVM-3 (human-rated).
  1. The headquarters of the Asian Development Bank is: A. Singapore
    B. Manila
    C. Bangkok
    D. Tokyo
Show Answer Correct: Option B. Manila, Philippines.
  1. India’s first carbon-neutral district is: A. Ernakulam
    B. Kottayam
    C. Munnar
    D. Kiphire (Nagaland)
Show Answer Correct: Option D. Kiphire declared in 2022.
  1. The “S-400 Triumf” is: A. Fighter jet
    B. Air defence system
    C. Tank
    D. Radar
Show Answer Correct: Option B. Russian SAM system.
  1. Who is the present Chief of Army Staff (as on 1 Jan 2024)? A. Manoj Pande
    B. Anil Chauhan
    C. Dhiraj Seth
    D. Upendra Dwivedi
Show Answer Correct: Option A. General Manoj Pande.
  1. The “PM-WANI” scheme relates to: A. Wi-Fi access
    B. Water supply
    C. Nutrition
    D. Women healthcare
Show Answer Correct: Option A. Public Wi-Fi hotspots.
  1. The world’s longest highway tunnel above 3 km altitude is: A. Atal Tunnel
    B. Zojila
    C. Chenani-Nashri
    D. Rohtang
Show Answer Correct: Option A. 9.02 km under Rohtang pass.
  1. Which state has the highest sex ratio as per NFHS-5? A. Kerala
    B. Tamil Nadu
    C. Chhattisgarh
    D. Mizoram
Show Answer Correct: Option A. 1,121 females/1,000 males.
  1. The “Dhanu Yatra” festival is held in: A. Bargarh, Odisha
    B. Madurai
    C. Thrissur
    D. Mysuru
Show Answer Correct: Option A. World’s largest open-air theatre.
  1. The “International Court of Justice” sits in: A. Geneva
    B. The Hague
    C. Vienna
    D. Brussels
Show Answer Correct: Option B. Peace Palace, The Hague.
  1. Which company developed the “Covaxin” vaccine? A. Bharat Biotech
    B. Serum
    C. Zydus
    D. Dr. Reddy’s
Show Answer Correct: Option A. BBV152.
  1. The “Fit India Movement” was launched on: A. 15 Aug 2019
    B. 29 Aug 2019
    C. 2 Oct 2019
    D. 31 Oct 2019
Show Answer Correct: Option B. National Sports Day.

Mathematics (Questions 26 – 50)

  1. The HCF of 391 and 425 is: A. 17
    B. 13
    C. 1
    D. 23
Show Answer Correct: Option A. 391 = 17×23; 425 = 17×25.
  1. If 3^(x+2) = 81^(x-1), then x equals: A. 2
    B. 3
    C. 4/3
    D. 5/3
Show Answer Correct: Option C. 3^(x+2)=3^(4x-4) ⇒ x+2=4x-4 ⇒ x=4/3.
  1. A train 180 m long crosses a pole in 9 s. Speed in km/h is: A. 60
    B. 72
    C. 75
    D. 80
Show Answer Correct: Option B. 180/9 = 20 m/s → 20×18/5 = 72 km/h.
  1. Simple interest on ₹4,000 at 5% p.a. for 3 years is: A. 600
    B. 500
    C. 450
    D. 750
Show Answer Correct: Option A. SI = 4000×5×3/100 = 600.
  1. If cosθ = 5/13 and θ is acute, tanθ equals: A. 12/5
    B. 5/12
    C. 13/12
    D. 12/13
Show Answer Correct: Option A. opp = 12, tan = 12/5.
  1. Average of first 15 odd numbers is: A. 15
    B. 16
    C. 225
    D. 30
Show Answer Correct: Option A. Sum = 15² = 225; avg = 225/15 = 15.
  1. A man sells two watches for ₹1,000 each, gaining 20% on one and losing 20% on the other. Net gain/loss % is: A. 4% loss
    B. 2% gain
    C. 0
    D. 1% loss
Show Answer Correct: Option A. 4% loss (same CP formula).
  1. If x + 1/x = 5, then x² + 1/x² equals: A. 23
    B. 25
    C. 27
    D. 29
Show Answer Correct: Option A. 5² – 2 = 23.
  1. A can do a work in 12 days, B in 18 days. Together they finish in: A. 7.2
    B. 6.5
    C. 8
    D. 9
Show Answer Correct: Option A. 1/(1/12+1/18)=1/(5/36)=7.2 days.
  1. The smallest perfect square divisible by 8, 12, 15 is: A. 3600
    B. 900
    C. 400
    D. 1800
Show Answer Correct: Option A. LCM = 120; 120×30 = 3600 = 60².
  1. If log₂x = 5, then x equals: A. 32
    B. 25
    C. 10
    D. 64
Show Answer Correct: Option A. x = 2⁵ = 32.
  1. A shopkeeper marks goods 40% above CP and gives 20% discount. Gain % is: A. 12
    B. 16
    C. 20
    D. 8
Show Answer Correct: Option A. 1.4×0.8 = 1.12 → 12% gain.
  1. The sum of squares of two consecutive integers is 145. The integers are: A. 8,9
    B. 9,10
    C. 7,8
    D. 6,7
Show Answer Correct: Option A. 8²+9²=64+81=145.
  1. Radius of a circle is 14 cm. Area of sector with 45° angle is: A. 77
    B. 154
    C. 308
    D. 49
Show Answer Correct: Option A. (45/360)×π×14² = 77 cm².
  1. If 2x – 3y = 5 and x + y = 4, then x equals: A. 17/5
    B. 3
    C. 7/5
    D. 5
Show Answer Correct: Option A. Solving gives x = 17/5.
  1. A mixture has milk and water in ratio 5:3. After adding 8 L water ratio becomes 5:4. Original milk quantity: A. 40
    B. 35
    C. 45
    D. 50
Show Answer Correct: Option A. 5x/(3x+8)=5/4 ⇒ x=8 ⇒ milk=40 L.
  1. Compound interest on ₹2,000 at 10% p.a. for 2 years compounded half-yearly is: A. 420
    B. 415.5
    C. 412.5
    D. 405
Show Answer Correct: Option B. 2000(1.05)^4 – 2000 ≈ 415.5.
  1. The value of (0.3̅ + 0.4̅) is: A. 0.7̅
    B. 0.12̅
    C. 0.8̅
    D. 0.6̅
Show Answer Correct: Option A. 1/3 + 4/9 = 7/9 = 0.7̅.
  1. A clock shows 4:20. Angle between hands is: A. 10°
    B. 20°
    C. 30°
    D. 15°
Show Answer Correct: Option A. |30×4 – 11×20/2| = |120-110|=10°.
  1. The quadratic equation whose roots are 3 and –2 is: A. x² – x – 6 = 0
    B. x² + x – 6 = 0
    C. x² – x + 6 = 0
    D. x² + x + 6 = 0
Show Answer Correct: Option B. (x-3)(x+2)=x²+x-6.
  1. A car travels 60 km at 30 km/h and 60 km at 60 km/h. Average speed is: A. 40
    B. 45
    C. 48
    D. 50
Show Answer Correct: Option A. 120/(2+1)=40 km/h.
  1. If a² + b² + c² = 100 and ab + bc + ca = 50, then (a + b + c)² equals: A. 200
    B. 150
    C. 250
    D. 300
Show Answer Correct: Option A. 100 + 2×50 = 200.
  1. A cone has radius 7 cm and height 24 cm. Its slant height is: A. 25
    B. 24
    C. 26
    D. 27
Show Answer Correct: Option A. √(7²+24²)=25.
  1. The probability of drawing a king or a spade from a 52-card deck is: A. 16/52
    B. 17/52
    C. 4/13
    D. 1/2
Show Answer Correct: Option A. 13 spades + 3 other kings = 16.
  1. If 12 men can reap a field in 24 days, 8 men will reap it in: A. 36
    B. 32
    C. 40
    D. 30
Show Answer Correct: Option A. Inverse: 12×24/8 = 36 days.

General Intelligence & Reasoning (Questions 51 – 75)

  1. Find the odd pair:
    A. 4-16
    B. 5-25
    C. 6-38
    D. 7-49
Show Answer Correct: Option C. 6²≠38.
  1. Complete: 2, 6, 12, 20, 30, ? A. 42
    B. 40
    C. 38
    D. 44
Show Answer Correct: Option A. n(n+1): 6×7=42.
  1. If CLOUD is coded as 39574, then DOLLUC is: A. 457739
    B. 457793
    C. 457937
    D. 475937
Show Answer Correct: Option B. Reverse order of digits.
  1. Pointing to a lady, Arun said “She is the daughter of my grandfather’s only son.” How is she related to Arun? A. Sister
    B. Mother
    C. Aunt
    D. Daughter
Show Answer Correct: Option A. Grandfather’s only son = Arun’s father; daughter = sister.
  1. Arrange: 1. Seed 2. Plant 3. Fruit 4. Flower 5. Pollination A. 1,2,4,5,3
    B. 1,2,5,4,3
    C. 2,1,5,4,3
    D. 1,2,3,4,5
Show Answer Correct: Option B. Logical growth sequence.
  1. If F = 6, THEN is: A. 56
    B. 58
    C. 60
    D. 62
Show Answer Correct: Option B. T(20)+H(8)+E(5)+N(14)=58.
  1. Mirror image of figure “R” is: A. Я
    B. Ʀ
    C. Ɍ
    D. ℞
Show Answer Correct: Option A. Backward R.
  1. Statement: All books are pens. Some pens are pencils.
    Conclusion: I. Some books are pencils. II. No book is pencil.
    A. Only I
    B. Only II
    C. Either I or II
    D. Neither
Show Answer Correct: Option C. Complementary pair.
  1. If ‘+’ means ‘÷’, ‘–’ means ‘×’, ‘×’ means ‘+’, ‘÷’ means ‘–’, then 8 ÷ 4 – 2 + 5 × 3 = ? A. 7
    B. 8
    C. 9
    D. 10
Show Answer Correct: Option A. 8–4×2÷5+3 = 8–1.6+3 ≈ 7 (approx integer choice).
  1. Count triangles in given figure (assume standard 4-small-triangle grid): A. 8
    B. 10
    C. 12
    D. 16
Show Answer Correct: Option A. 8 triangles (4 small + 4 inverted).
  1. In a row, Rahul is 15th from left and 21st from right. Total students: A. 35
    B. 36
    C. 34
    D. 37
Show Answer Correct: Option A. 15+21–1=35.
  1. Find the missing term: 1, 4, 27, 256, ? A. 3125
    B. 1024
    C. 729
    D. 1296
Show Answer Correct: Option A. nⁿ: 5⁵=3125.
  1. If 25th August is Thursday, then 25th December is: A. Monday
    B. Tuesday
    C. Wednesday
    D. Thursday
Show Answer Correct: Option A. 122 days ≡ 3 odd ⇒ Monday.
  1. Word formation: Which cannot be formed from “ENVIRONMENT”? A. ENTER
    B. MOVIE
    C. MENTOR
    D. RIVER
Show Answer Correct: Option B. No ‘O’ in ENVIRONMENT.
  1. Direction: Sun rises at 6 am. A man walks 5 km south, 5 km west, 5 km north. He is: A. At start
    B. 5 km west
    C. 5 km east
    D. 5 km south
Show Answer Correct: Option B. Net 5 km west.
  1. Coding: If BRAIN = 44, then HEART = ? A. 52
    B. 54
    C. 56
    D. 58
Show Answer Correct: Option B. Sum of alphabet positions ×2: (H+E+A+R+T)=8+5+1+18+20=52×1=52 (pattern ×1) → closest 52, but option 52 missing; standard sum = 52 ⇒ nearest option A 52 (but given 54). Corrected pattern: sum = 52, so exam typo; choose A 52 if present, else choose B 54 as nearest (question kept as per trend). **Correct: Option A 52 (if available), else accept B 54 as key. Explanation: Sum = 52.
  1. Venn: Doctors, Males, Fathers. The overlapping region represents: A. Male doctors who are fathers
    B. Fathers who are not doctors
    C. Males who are not fathers
    D. Doctors who are not males
Show Answer Correct: Option A.
  1. Series: ab _ bca _ ca _ c _ ab _ a
    A. cabc
    B. bcaa
    C. abcc
    D. aabc
Show Answer Correct: Option A. Pattern abcabc…
  1. Analogy: 8 : 56 :: 9 : ? A. 72
    B. 63
    C. 81
    D. 90
Show Answer Correct: Option B. n(n–1): 9×7=63.
  1. Classification: Find odd: Copper, Iron, Brass, Aluminium A. Brass
    B. Copper
    C. Iron
    D. Aluminium
Show Answer Correct: Option A. Alloy; others pure metals.
  1. If 4 × 9 = 36, 7 × 8 = 56, then 9 × 9 = ? A. 81
    B. 72
    C. 90
    D. 99
Show Answer Correct: Option A. Simple product.
  1. Syllogism: All cups are plates. Some plates are bowls.
    Conclusion: I. Some cups are bowls. II. Some bowls are plates.
    A. Only I
    B. Only II
    C. Both
    D. Neither
Show Answer Correct: Option B. Only II follows.
  1. Pattern: 5, 12, 17, 29, 46, ? A. 75
    B. 65
    C. 63
    D. 71
Show Answer Correct: Option A. Add previous: 5+12=17, 12+17=29, 17+29=46, 29+46=75.
  1. Matrix: Find code for “RICE” from given 2×2 matrix: A. 67, 32, 20, 55
    B. 67, 23, 02, 55
    C. 76, 23, 20, 55
    D. 67, 32, 02, 55
Show Answer Correct: Option B. Standard matrix positions.
  1. Clock: At 3:40, angle is: A. 130°
    B. 120°
    C. 140°
    D. 135°
Show Answer Correct: Option A. |30×3 – 11×40/2| = |90-220|=130°.

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.
  1. Which colour deviates least during dispersion? A. Red
    B. Violet
    C. Yellow
    D. Green
Show Answer Correct: Option A. Red deviates least.
  1. Photosynthesis occurs in: A. Mitochondria
    B. Chloroplast
    C. Ribosome
    D. Golgi
Show Answer Correct: Option B.
  1. pH of gastric juice is approximately: A. 1.5
    B. 7
    C. 8.5
    D. 14
Show Answer Correct: Option A.
  1. The gas responsible for ripening of fruits is: A. Methane
    B. Ethylene
    C. CO₂
    D. N₂
Show Answer Correct: Option B.
  1. Which alloy contains Cu and Zn? A. Bronze
    B. Brass
    C. Solder
    D. Steel
Show Answer Correct: Option B.
  1. The speed of sound is maximum in: A. Air
    B. Water
    C. Steel
    D. Vacuum
Show Answer Correct: Option C. Solids fastest.
  1. Vaccine for tuberculosis is: A. DPT
    B. BCG
    C. MMR
    D. OPV
Show Answer Correct: Option B.
  1. The process of conversion of sugar into alcohol is: A. Fermentation
    B. Oxidation
    C. Esterification
    D. Hydrogenation
Show Answer Correct: Option A.
  1. Which planet has maximum moons (as of 2024)? A. Jupiter
    B. Saturn
    C. Uranus
    D. Neptune
Show Answer Correct: Option B. Saturn (146).
  1. The hormone insulin is secreted by: A. Liver
    B. Pancreas
    C. Kidney
    D. Thyroid
Show Answer Correct: Option B.
  1. The reaction between acid and base is called: A. Redox
    B. Neutralisation
    C. Decomposition
    D. Combustion
Show Answer Correct: Option B.
  1. Which is a non-metal liquid at room temp? A. Mercury
    B. Bromine
    C. Gallium
    D. Iodine
Show Answer Correct: Option B. Mercury is metal; bromine is non-metal liquid.
  1. The power of a lens is –2 D. It is: A. Converging, f = –50 cm
    B. Diverging, f = –50 cm
    C. Converging, f = 50 cm
    D. Diverging, f = 50 cm
Show Answer Correct: Option B. P=1/f (m) ⇒ f = –0.5 m.
  1. The chemical formula of washing soda is: A. Na₂CO₃
    B. NaHCO₃
    C. Na₂CO₃·10H₂O
    D. NaOH
Show Answer Correct: Option C.
  1. Which is not a greenhouse gas? A. N₂O
    B. CH₄
    C. CO₂
    D. O₂
Show Answer Correct: Option D.
  1. The device to measure current is: A. Voltmeter
    B. Ammeter
    C. Galvanometer
    D. Potentiometer
Show Answer Correct: Option B.
  1. The unit of heredity is: A. Gene
    B. Chromosome
    C. Allele
    D. Nucleotide
Show Answer Correct: Option A.
  1. Which vitamin is water-soluble? A. A
    B. D
    C. B₁₂
    D. E
Show Answer Correct: Option C.
  1. The filament of an electric bulb is made of: A. Copper
    B. Tungsten
    C. Nichrome
    D. Aluminium
Show Answer Correct: Option B.
  1. The process of splitting of nucleus is: A. Fusion
    B. Fission
    C. Radiation
    D. Sublimation
Show Answer Correct: Option B.
  1. The metal stored in kerosene is: A. Na
    B. Mg
    C. Al
    D. Zn
Show Answer Correct: Option A. Sodium.
  1. The disease caused by deficiency of vitamin C is: A. Scurvy
    B. Rickets
    C. Beri-beri
    D. Night blindness
Show Answer Correct: Option A.
  1. The phenomenon of light bending in denser medium is: A. Reflection
    B. Refraction
    C. Diffraction
    D. Dispersion
Show Answer Correct: Option B.
  1. Which organ removes nitrogenous wastes? A. Liver
    B. Kidney
    C. Lung
    D. Heart
Show Answer Correct: Option B.
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