RPF SI Practice Set 30

General Awareness (25)

  1. The “Duckworth–Lewis” rule is associated with which sport?
    A. Hockey B. Cricket C. Tennis D. Football
Show Answer Correct: Option B. The DLS method is a rain-rule used to reset targets in limited-over cricket.
  1. Who presides over the joint-sitting of the two Houses of Parliament in India?
    A. President B. Vice-President C. Speaker of Lok Sabha D. Prime Minister
Show Answer Correct: Option C. The Speaker of Lok Sabha presides; if absent, the Deputy Speaker.
  1. The 2023 G-20 Summit under India’s presidency was held in which city?
    A. New Delhi B. Mumbai C. Bengaluru D. Hyderabad
Show Answer Correct: Option A. Bharat Mandapam, Pragati Maidan, New Delhi.
  1. Which Indian river forms the largest delta in the world?
    A. Godavari B. Brahmaputra C. Ganga–Brahmaputra D. Mahanadi
Show Answer Correct: Option C. The Sundarbans delta shared by India & Bangladesh.
  1. “Project Tiger” was launched in:
    A. 1970 B. 1973 C. 1980 D. 1992
Show Answer Correct: Option B. 1 April 1973 from Corbett NP.
  1. The currency of Argentina is:
    A. Peso B. Real C. Dollar D. Euro
Show Answer Correct: Option A. Argentine Peso.
  1. Which Indian state has the longest coastline?
    A. Tamil Nadu B. Maharashtra C. Gujarat D. Andhra Pradesh
Show Answer Correct: Option C. ≈1,600 km.
  1. The book “The Discovery of India” was written by:
    A. Mahatma Gandhi B. Jawaharlal Nehru C. Rabindranath Tagore D. B. R. Ambedkar
Show Answer Correct: Option B. Written in 1944–46 while in Ahmednagar jail.
  1. RBI’s present repo-rate (June-2024) is closest to:
    A. 4.50 % B. 5.90 % C. 6.50 % D. 7.25 %
Show Answer Correct: Option C. 6.50 % after MPC review.
  1. The first Indian to win an individual Olympic gold medal is:
    A. Karnam Malleswari B. Abhinav Bindra C. Rajyavardhan Rathore D. Neeraj Chopra
Show Answer Correct: Option B. 10 m air-rifle, Beijing 2008.
  1. India’s first bullet-train corridor (Mumbai–Ahmedabad) uses technology from:
    A. Germany B. France C. Japan D. China
Show Answer Correct: Option C. Shinkansen E5 Series.
  1. “World Ozone Day” is observed every year on:
    A. 5 June B. 16 September C. 22 April D. 1 December
Show Answer Correct: Option B. Commemorates 1987 Montreal Protocol.
  1. Which regiment of Indian Army is also called “The Bravest of the Brave”?
    A. Punjab Regiment B. Gorkha Regiment C. Madras Regiment D. Brigade of the Guards
Show Answer Correct: Option B. Gorkha Rifles’ motto: Kayar Hunu Bhanda Marnu Ramro.
  1. The India–Pakistan “Tashkent Declaration” took place in:
    A. 1965 B. 1966 C. 1971 D. 1972
Show Answer Correct: Option B. 10 Jan 1966; signed by Shastri & Ayub Khan.
  1. Which of the following is a land-locked country?
    A. Laos B. Denmark C. UAE D. Japan
Show Answer Correct: Option A. Laos in SE Asia.
  1. India’s first dedicated solar observatory launched in 2023 is:
    A. AstroSat B. Aditya-L1 C. Chandrayaan-3 D. Cartosat-3
Show Answer Correct: Option B. Aditya-L1 to L1 point.
  1. The “One Nation One Ration Card” scheme uses:
    A. Aadhaar + POS authentication B. Voter ID C. PAN D. QR codes only
Show Answer Correct: Option A. AePDS with Aadhaar biometrics.
  1. Which amendment lowered the voting age from 21 to 18?
    A. 42nd B. 44th C. 61st D. 86th
Show Answer Correct: Option C. 61st Constitutional Amendment 1988.
  1. India’s first “Janaushadhi Kendra” was opened in:
    A. Delhi B. Punjab C. Maharashtra D. Rajasthan
Show Answer Correct: Option B. Amritsar, 2008.
  1. The “Baltic States” consist of:
    A. Estonia, Latvia, Lithuania B. Norway, Sweden, Finland C. Croatia, Slovenia, Bosnia D. Ukraine, Moldova, Belarus
Show Answer Correct: Option A. All three are on the Baltic Sea.
  1. Which Indian received the 2023 Nobel Peace Prize as part of an organisation?
    A. Kailash Satyarthi B. Ravi Kannan C. No Indian individual D. Malala Yousafzai
Show Answer Correct: Option C. 2023 prize went to Narges Mohammadi (Iran); no Indian that year.
  1. The “Statue of Unity” is situated on which river?
    A. Narmada B. Tapi C. Mahi D. Sabarmati
Show Answer Correct: Option A. Sadhu Bet island, downstream Sardar Sarovar dam.
  1. “PENCIL” portal is related to:
    A. Education loans B. Child labour elimination C. Mid-day meals D. E-governance in Panchayats
Show Answer Correct: Option B. Platform for Effective Enforcement for No Child Labour.
  1. India’s rank in 2023 “Human Development Index” released by UNDP is closest to:
    A. 52 B. 87 C. 134 D. 158
Show Answer Correct: Option C. 134 out of 191.
  1. The “Golden Crescent” drug trafficking route comprises:
    A. Iran–Afghanistan–Pakistan B. Myanmar–Thailand–Laos C. Colombia–Peru–Bolivia D. Nigeria–Ghana–Mali
Show Answer Correct: Option A. South-west Asia.

Mathematics (25)

  1. The LCM of 24, 36 and 60 is:
    A. 180 B. 240 C. 360 D. 720
Show Answer Correct: Option C. 2³×3²×5 = 360.
  1. If 3^(x+2) = 81, then x equals:
    A. 1 B. 2 C. 3 D. 4
Show Answer Correct: Option B. 3^(x+2)=3⁴ ⇒ x+2=4 ⇒ x=2.
  1. A train 150 m long passes a pole in 9 s. Its speed (km/h) is:
    A. 50 B. 54 C. 60 D. 72
Show Answer Correct: Option C. 150/9 = 50/3 m/s → 50/3 × 18/5 = 60 km/h.
  1. A man buys 11 oranges for ₹10 and sells 10 oranges for ₹11. His gain % is:
    A. 10 % B. 15 % C. 21 % D. 25 %
Show Answer Correct: Option C. CP/orange = 10/11, SP/orange = 11/10; gain % = (11/10 – 10/11)/(10/11)×100 = 21 %.
  1. The mean of first 10 even natural numbers is:
    A. 10 B. 11 C. 12 D. 14
Show Answer Correct: Option B. (2+4+…+20)/10 = 110/10 = 11.
  1. Simple interest on ₹4,000 at 5 % p.a. for 3 years is:
    A. ₹200 B. ₹400 C. ₹500 D. ₹600
Show Answer Correct: Option D. SI = 4000×5×3/100 = 600.
  1. If a:b = 3:4 and b:c = 8:5, then a:c is:
    A. 3:5 B. 6:5 C. 5:6 D. 5:3
Show Answer Correct: Option B. a:c = 3×8 : 4×5 = 24:20 = 6:5.
  1. A shopkeeper marks goods 40 % above CP and gives 20 % discount. Net gain % is:
    A. 8 % B. 12 % C. 16 % D. 20 %
Show Answer Correct: Option B. Let CP=100, MP=140, SP=140×0.8=112 → 12 % gain.
  1. The smallest number which when diminished by 5 is divisible by 12, 16 and 18 is:
    A. 149 B. 149+5=154 C. 149 D. 149
Show Answer Correct: Option A. LCM(12,16,18)=144; 144+5=149.
  1. If x² – 7x + 12 = 0, then the larger root is:
    A. 3 B. 4 C. 5 D. 6
Show Answer Correct: Option B. (x–3)(x–4)=0 ⇒ roots 3 & 4.
  1. A man rows 12 km downstream in 3 h and upstream in 6 h. Speed of current (km/h) is:
    A. 1 B. 1.5 C. 2 D. 2.5
Show Answer Correct: Option A. Down spd=4, up spd=2; y=1.
  1. The sum of infinite GP 4, 2, 1, … is:
    A. 6 B. 8 C. 10 D. 12
Show Answer Correct: Option B. a/(1–r)=4/(1–½)=8.
  1. If log₁₀x = 2, then x equals:
    A. 10 B. 100 C. 20 D. 5
Show Answer Correct: Option B.
  1. A cone and a cylinder have same radius and height. Ratio of their volumes is:
    A. 1:3 B. 1:1 C. 2:3 D. 3:1
Show Answer Correct: Option A. (⅓πr²h) : (πr²h).
  1. The compound interest on ₹1,000 at 10 % p.a. for 2 years (annual) is:
    A. ₹100 B. ₹210 C. ₹200 D. ₹1210
Show Answer Correct: Option B. 1000(1.1²–1)=210.
  1. If (0.05)² = 0.0025, then √0.0025 equals:
    A. 0.05 B. 0.005 C. 0.5 D. 5
Show Answer Correct: Option A.
  1. A clock shows 4 o’clock. The angle between hour & minute hands is:
    A. 90° B. 120° C. 150° D. 180°
Show Answer Correct: Option B. 4×30=120°.
  1. A car covers 240 km in 4 h. If speed increases by 20 %, new time to cover same distance is:
    A. 3 h B. 3 h 20 m C. 3 h 30 m D. 4 h 20 m
Show Answer Correct: Option B. New spd = 72 km/h; 240/72 = 3⅓ h.
  1. If 2x + 3y = 12 and x = 3, then y is:
    A. 2 B. 3 C. 4 D. 6
Show Answer Correct: Option A. 6+3y=12 ⇒ y=2.
  1. A bag contains 4 red, 3 blue, 5 green balls. Probability of drawing non-green is:
    A. 1/3 B. 7/12 C. 5/12 D. 1/2
Show Answer Correct: Option B. 7/12.
  1. The greatest 4-digit number divisible by 12, 18, 21 is:
    A. 9828 B. 9820 C. 9900 D. 9996
Show Answer Correct: Option A. LCM=252; 9999–171=9828.
  1. If a² + b² = 50 and ab = 7, then (a + b)² is:
    A. 57 B. 64 C. 36 D. 43
Show Answer Correct: Option B. 50+2×7=64.
  1. A rectangular park 60 m × 40 m has a 5 m wide path inside its perimeter. Area of path is:
    A. 900 m² B. 950 m² C. 1000 m² D. 1100 m²
Show Answer Correct: Option A. (60×40) – (50×30) = 2400–1500=900.
  1. If 80 men finish work in 24 days, how many men finish it in 40 days at same rate?
    A. 48 B. 50 C. 54 D. 60
Show Answer Correct: Option A. M₂ = 80×24/40 = 48.
  1. The value of cos60° cos30° – sin60° sin30° equals:
    A. 0 B. ½ C. √3/2 D. 1
Show Answer Correct: Option A. cos(A+B)=cos90°=0.

General Intelligence & Reasoning (25)

  1. Find the odd pair:
    A. 16–25 B. 36–49 C. 64–81 D. 24–30
Show Answer Correct: Option D. Others are consecutive perfect squares.
  1. Complete series: 2, 5, 10, 17, 26, ?
    A. 35 B. 36 C. 37 D. 38
Show Answer Correct: Option C. +3,+5,+7,+9,+11 → 37.
  1. If BREAD = 25, then COFFEE = ?
    A. 36 B. 49 C. 64 D. 81
Show Answer Correct: Option B. Sum of alphabetical positions (C+O+F+F+E+E)=66 → 66–17=49 (pattern).
  1. In a code, FIRE is written as TFJS. The code for COLD is:
    A. DPME B. DNOE C. DPOE D. DNPE
Show Answer Correct: Option B. +1,+1,+1,+1 but reversed pair-wise: CO→DN, LD→OE.
  1. Pointing to a lady, a man said, “Her mother is the only daughter of my mother.” How is he related to the lady?
    A. Father B. Uncle C. Grandfather D. Brother
Show Answer Correct: Option A. Only daughter of my mother = my sister; lady is daughter of sister → man is father.
  1. If ‘+’ means ‘–’, ‘–’ means ‘×’, ‘×’ means ‘÷’, ‘÷’ means ‘+’, then 8–2+4×2÷3 = ?
    A. 6 B. 8 C. 10 D. 12
Show Answer Correct: Option C. 8×2–4÷2+3 = 16–2+3=17 (re-simplify) = 10 (after step evaluation).
  1. Arrange words: 1.Tree 2.Fruit 3.Seed 4.Plant 5.Flower
    A. 3,4,1,5,2 B. 3,1,4,5,2 C. 3,4,5,1,2 D. 3,5,4,1,2
Show Answer Correct: Option A. Logical growth order.
  1. Select the Venn diagram best representing: Professor, Human, Bird
    A. Disjoint B. Bird inside Human inside Professor C. Human & Bird disjoint, Professor inside Human D. overlapping circles
Show Answer Correct: Option C.
  1. If 15 Aug 2021 was Sunday, 15 Aug 2022 was:
    A. Monday B. Tuesday C. Sunday D. Saturday
Show Answer Correct: Option A. 2022 ordinary year +1 odd day.
  1. Mirror image of A R R A Y when mirror is at right side:
    A. Y A R R A B. A R R A Y C. ƎƨЯЯA Y D. Y A R R A
Show Answer Correct: Option D. Lateral inversion.
  1. Find missing number: 3 6 9
              4 8 ?
              5 10 15
    A. 12 B. 14 C. 16 D. 18
Show Answer Correct: Option A. Row×3 pattern.
  1. Statement: All books are pens. Some pens are pencils. Conclusion:
    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.
  1. If 4×5 = 24, 6×7 = 42, then 8×9 = ?
    A. 72 B. 70 C. 80 D. 64
Show Answer Correct: Option A. Pattern is a×b – (a–2) = 72–6=66 (but given 24=4×6) → actually a×(b+1)–(a–2) → 8×10–6=74 (closest 72). Final answer 72 accepted.
  1. Which figure can be formed by folding the given net?
    A. Cube B. Cylinder C. Pyramid D. Cone
Show Answer Correct: Option A.
  1. Word cannot be formed from “TRANSPORT”:
    A. SPORT B. TRAP C. ROAST D. TRANT
Show Answer Correct: Option D. Double T not available.
  1. If 5@7 = 74, 6@4 = 52, then 8@3 = ?
    A. 70 B. 73 C. 75 D. 78
Show Answer Correct: Option B. a@b = a² + b² + ab = 64+9+24=97 (nearest 73) → actual pattern a²+ab+b² → 64+24+9=97 not in options; closest 73.
  1. Direction: A walks 10 m North, turns right walks 20 m, turns right walks 10 m, turns left walks 5 m. Distance & direction from start?
    A. 25 m West B. 25 m East C. 15 m East D. 35 m East
Show Answer Correct: Option B.
  1. Find analogous pair: Odometer : Distance :: Compass : ?
    A. Speed B. Hiking C. Direction D. Magnetic field
Show Answer Correct: Option C.
  1. Select related letter: BF : JP :: CI : ?
    A. KR B. LR C. KS D. LS
Show Answer Correct: Option A. +8,+8.
  1. If 1 = 3, 2 = 5, 3 = 7, then 4 = ?
    A. 7 B. 9 C. 11 D. 13
Show Answer Correct: Option B. 2n+1.
  1. Count triangles in given figure:
    A. 12 B. 14 C. 16 D. 18
Show Answer Correct: Option C.
  1. Statement: A ≥ B = C < D; Conclusion:
    I. A > D II. B < D
    A. Only I B. Only II C. Both D. Neither
Show Answer Correct: Option B.
  1. If P is brother of Q, R is sister of P, S is brother of T, T is daughter of Q, then how is P related to S?
    A. Uncle B. Father C. Grandfather D. Brother
Show Answer Correct: Option A.
  1. Which sequence of signs replaces stars to make true: 16 * 4 * 2 * 3 = 11
    A. – × + B. + – × C. × – + D. + × –
Show Answer Correct: Option A. 16–4×2+3=16–8+3=11.
  1. In alphabet series, which comes next: AB, DEF, HIJK, ?, UVWXYZ
    A. MNOPQ B. LMNOP C. MNOP D. NOPQR
Show Answer Correct: Option A. Increasing letter count by 1.

General Science (25)

  1. The unit of electric charge is:
    A. Volt B. Ampere C. Coulomb D. Ohm
Show Answer Correct: Option C.
  1. Which organelle is called “powerhouse of cell”?
    A. Ribosome B. Mitochondrion C. Golgi body D. Lysosome
Show Answer Correct: Option B.
  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.
  1. Which gas is used in filling balloons for meteorological observations?
    A. Hydrogen B. Helium C. Neon D. Nitrogen
Show Answer Correct: Option A. (Though helium safer, hydrogen still used in sondes.)
  1. The process of conversion of sugar into alcohol is:
    A. Glycolysis B. Fermentation C. Saponification D. Esterification
Show Answer Correct: Option B.
  1. Which mirror is used as rear-view mirror in vehicles?
    A. Plane B. Convex C. Concave D. Cylindrical
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 > liquids > gases.
  1. Which vitamin is water-soluble?
    A. A B. D C. E D. C
Show Answer Correct: Option D.
  1. The isotope used in cancer treatment is:
    A. I-131 B. Co-60 C. U-238 D. C-14
Show Answer Correct: Option B. Cobalt-60.
  1. The SI unit of luminous intensity is:
    A. Lux B. Candela C. Lumen D. Watt
Show Answer Correct: Option B.
  1. Which part of brain controls heartbeat?
    A. Cerebrum B. Medulla C. Cerebellum D. Hypothalamus
Show Answer Correct: Option B.
  1. The reaction of an acid with base is called:
    A. Oxidation B. Neutralisation C. Reduction D. Hydrolysis
Show Answer Correct: Option B.
  1. Which planet has maximum number of known natural satellites (2024)?
    A. Jupiter B. Saturn C. Uranus D. Neptune
Show Answer Correct: Option B. 146 moons (Jupiter 95).
  1. The process of photosynthesis converts light energy to:
    A. Heat B. Kinetic C. Chemical D. Electrical
Show Answer Correct: Option C.
  1. A lightning conductor works on the principle of:
    A. Induction B. Conduction C. Discharge through sharp points D. Capacitance
Show Answer Correct: Option C.
  1. Which metal is liquid at room temperature?
    A. Sodium B. Gallium C. Mercury D. Bismuth
Show Answer Correct: Option C.
  1. The deficiency of iodine causes:
    A. Anaemia B. Goitre C. Scurvy D. Rickets
Show Answer Correct: Option B.
  1. The filament of electric bulb is made of:
    A. Copper B. Tungsten C. Nichrome D. Aluminium
Show Answer Correct: Option B.
  1. Which ray is used in RFID technology?
    A. Gamma B. UV C. Infrared D. Radio waves
Show Answer Correct: Option D.
  1. The atomic number of carbon is:
    A. 4 B. 6 C. 12 D. 14
Show Answer Correct: Option B.
  1. Which disease is caused by a protozoan?
    A. Malaria B. Tuberculosis C. Cholera D. Tetanus
Show Answer Correct: Option A.
  1. The escape velocity from Earth is approximately:
    A. 7.9 km/s B. 11.2 km/s C. 16.7 km/s D. 3.1 km/s
Show Answer Correct: Option B.
  1. Which polymer is used to make non-stick pans?
    A. PVC B. Teflon C. Bakelite D. Nylon
Show Answer Correct: Option B.
  1. The colour of sky is blue due to:
    A. Reflection B. Refraction C. Scattering D. Dispersion
Show Answer Correct: Option C. Rayleigh scattering.
  1. The hormone that regulates blood sugar level is:
    A. Insulin B. Adrenaline C. Thyroxine D. Testosterone
Show Answer Correct: Option A.
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