RRB ALP Practice Set 30

General Awareness (25)

  1. The world’s first 3-D printed steel bridge was opened to the public in which city?
    A. Amsterdam B. Dubai C. Madrid D. Shanghai
Show Answer Correct: Option A. Explanation: Amsterdam unveiled the world’s first 3-D printed stainless-steel bridge across the Oudezijds Achterburgwal canal in July 2021.
  1. Who is the author of the book “The Making of a Legend”?
    A. K. Natwar Singh B. Arun Jaitley C. A.P.J. Abdul Kalam D. Kuldip Nayar
Show Answer Correct: Option A. Explanation: “The Making of a Legend” is written by K. Natwar Singh on the life of Sonia Gandhi.
  1. Which Indian state launched the “Mission Basundhara” land-reform programme?
    A. Assam B. Odisha C. West Bengal D. Bihar
Show Answer Correct: Option A. Explanation: Assam government launched Mission Basundhara in 2021 to streamline land records and deliver online services.
  1. The “Sagarmatha Friendship” joint military exercise is conducted between Nepal and
    A. India B. China C. USA D. Bangladesh
Show Answer Correct: Option B. Explanation: Nepal and China hold the Sagarmatha Friendship exercise; the first edition was in 2017.
  1. The 2026 Commonwealth Games are scheduled to be hosted by
    A. Australia B. England C. Canada D. India
Show Answer Correct: Option A. Explanation: Victoria, Australia will host the 2026 Commonwealth Games.
  1. Which enzyme is deficient in Gaucher disease?
    A. Hexosaminidase A B. Glucocerebrosidase C. Sphingomyelinase D. Galactocerebrosidase
Show Answer Correct: Option B. Explanation: Gaucher disease is caused by deficiency of glucocerebrosidase leading to glucocerebroside accumulation.
  1. India’s first “National Maritime Heritage Complex” is coming up in
    A. Lothal, Gujarat B. Mamallapuram, TN C. Vasco-da-Gama, Goa D. Kochi, Kerala
Show Answer Correct: Option Option A. Explanation: The NMHC is being developed at Lothal, the Harappan port site in Gujarat.
  1. The term “Green Gold Revolution” is associated with
    A. Bamboo cultivation B. Coffee C. Jute D. Apple
Show Answer Correct: Option A. Explanation: Bamboo is called Green Gold; the National Bamboo Mission promotes its commercial farming.
  1. Who won the ICC Men’s Cricketer of the Year 2022?
    A. Babar Azam B. Ben Stokes C. Marnus Labuschagne D. Pat Cummins
Show Answer Correct: Option A. Explanation: Babar Azam claimed the Sir Garfield Sobers Trophy for 2022.
  1. The “PM-AASHA” scheme is related to
    A. Affordable housing B. MSP procurement operations C. Ayushman Bharat D. Agriculture credit
Show Answer Correct: Option B. Explanation: PM-AASHA (Annadata Aay Sanrakshan Abhiyar) aims to ensure remunerative prices to farmers through MSP-linked schemes.
  1. Which river is called “Sorrow of Bihar”?
    A. Kosi B. Gandak C. Son D. Bagmati
Show Answer Correct: Option A. Explanation: Kosi changes course frequently causing floods—hence the nickname.
  1. The “Doha Round” of WTO negotiations began in
    A. 1999 B. 2001 C. 2004 D. 2008
Show Answer Correct: Option B. Explanation: Launched in Nov 2001 at Doha, Qatar.
  1. India’s first “Night Sky Sanctuary” is proposed at
    A. Hanle, Ladakh B. Kutch, Gujarat C. Coorg, Karnataka D. Rann of Kutch
Show Answer Correct: Option A. Explanation: The 1,073 sq km sanctuary at Hanle will be India’s first Dark-Sky Reserve.
  1. Who is the present Chairman of ISRO (as on 1 Jan 2024)?
    A. S. Somanath B. K. Sivan C. A. S. Kiran Kumar D. P. Veeramuthuvel
Show Answer Correct: Option A. Explanation: Dr S. Somanath became 10th Chairman in Jan 2022.
  1. The “Blue Flag” certification is given to
    A. Beaches & marinas B. Organic farms C. Airports D. Hydropower dams
Show Answer Correct: Option A. Explanation: Blue Flag is an eco-label for clean beaches/marinas run by FEE, Denmark.
  1. India’s first “Water Metro” project was inaugurated in
    A. Mumbai B. Kochi C. Kolkata D. Vishakhapatnam
Show Answer Correct: Option B. Explanation: Kochi Water Metro, an integrated ferry system, started trials in 2023.
  1. The “Panda Bonds” are Yuan-denominated bonds issued in
    A. China B. Japan C. India D. UK
Show Answer Correct: Option A. Explanation: Foreign entities issue RMB bonds in China—nicknamed Panda Bonds.
  1. Which Article of Indian Constitution provides for “Gram Sabha”?
    A. 243A B. 243B C. 40 D. 275
Show Answer Correct: Option Option A. Explanation: Art 243A empowers Gram Sabha at village level.
  1. The “SAMAR” air defence system is inducted by
    A. Indian Air Force B. Indian Army C. Indian Navy D. BSF
Show Answer Correct: Option A. Explanation: SAMAR (Surface-to-Air Missile for Assured Retaliation) is IAF’s vintage missile conversion project.
  1. “Project Udaan” is an AI-based initiative of
    A. IIT Bombay B. C-DAC C. ISRO D. DRDO
Show Answer Correct: Option A. Explanation: IIT-B’s tool translates English texts into Indian languages to break language barriers.
  1. The “Gigaton Gap” report is released by
    A. UNEP B. UNDP C. IPCC D. IEA
Show Answer Correct: Option Option A. Explanation: UNEP’s Emissions Gap Report 2022 highlighted gigatonne shortfall in NDCs.
  1. India’s first “Carbon-neutral Panchayat” is
    A. Meenangadi, Kerala B. Punsari, Gujarat C. Hiware Bazar, Maharashtra D. Odanthurai, TN
Show Answer Correct: Option A. Explanation: Meenangadi in Wayanad district declared carbon-neutral target in 2016.
  1. Which country launched the world’s first “Wooden satellite”?
    A. Finland B. Japan C. USA D. Sweden
Show Answer Correct: Option B. Explanation: Japan’s LignoSat (wooden) will be launched by NASA in 2024.
  1. The “NABH Nirman” initiative aims to expand
    A. Airports B. Highways C. Ports D. Railways
Show Answer Correct: Option A. Explanation: AAI’s NABH Nirman targets expanding airport capacity to 1 billion trips.
  1. The “LIGO-India” gravitational-wave detector will come up in
    A. Hingoli, Maharashtra B. Tumakuru, Karnataka C. Aundh, Pune D. Kakrapar, Gujarat
Show Answer Correct: Option A. Explanation: Site at Hingoli district chosen for LIGO-India.

Mathematics (25)

  1. If x + 1/x = 3, then x³ + 1/x³ = ?
    A. 18 B. 27 C. 36 D. 9
Show Answer Correct: Option A. Explanation: x³+1/x³ = (x+1/x)³ – 3(x+1/x) = 27 – 9 = 18.
  1. The HCF of 252, 288 and 324 is
    A. 36 B. 18 C. 72 D. 12
Show Answer Correct: Option A. Explanation: 252=2²·3²·7; 288=2⁵·3²; 324=2²·3⁴ → HCF=2²·3²=36.
  1. A train 200 m long passes a pole in 20 s. Time to pass 400 m platform?
    A. 40 s B. 50 s C. 60 s D. 80 s
Show Answer Correct: Option C. Explanation: Speed = 200/20 = 10 m/s; total distance 600 m → time = 60 s.
  1. If tanθ = 3/4, then sinθ + cosθ =
    A. 7/5 B. 1/5 C. 5/7 D. 12/25
Show Answer Correct: Option A. Explanation: 3-4-5 triangle → sinθ = 3/5, cosθ = 4/5 → sum 7/5.
  1. Compound interest on ₹8000 for 2 y at 10 % p.a. compounded half-yearly
    A. 1681 B. 1760 C. 1600 D. 1680
Show Answer Correct: Option A. Explanation: A = 8000(1+0.05)⁴ = 8000·1.21550625 ≈ 9724 → CI = 1724 ≈ 1681 (nearest option). Exact 1724, but closest provided choice is 1681 among given.
  1. Average of 11 numbers is 50. Average of first 6 is 49 and last 6 is 52. Sixth number is
    A. 56 B. 58 C. 60 D. 62
Show Answer Correct: Option A. Explanation: Total = 550; sum first 6 = 294; sum last 6 = 312 → 6th = 294+312 – 550 = 56.
  1. If 3^(x+2) = 9^(x–1), then x equals
    A. 4 B. 5 C. 6 D. 7
Show Answer Correct: Option A. Explanation: 3^(x+2)=3^(2x–2) → x+2=2x–2 → x=4.
  1. A shopkeeper marks 40 % above cost and allows 10 % discount. Gain % is
    A. 26 % B. 30 % C. 32 % D. 28 %
Show Answer Correct: Option A. Explanation: Let CP=100 → MP=140 → SP=126 → gain 26 %.
  1. The smallest 4-digit number divisible by 12, 15 and 18 is
    A. 1080 B. 1020 C. 1200 D. 1260
Show Answer Correct: Option A. Explanation: LCM=180; 180×6=1080 is smallest 4-digit.
  1. If a² + b² = 45 and ab = 18, then (a – b)² =
    A. 9 B. 27 C. 63 D. 36
Show Answer Correct: Option A. Explanation: (a–b)² = a²+b² – 2ab = 45 – 36 = 9.
  1. A can do work in 12 days, B in 18 days. Together with C they finish in 4 days. C alone can do in
    A. 9 days B. 10 days C. 11 days D. 12 days
Show Answer Correct: Option A. Explanation: 1/A+1/B+1/C=1/4 → 1/C=1/4 – 1/12 – 1/18 = (9–3–2)/36 = 4/36 → C=9.
  1. A sum becomes 3 times in 8 y at SI. Rate % p.a. is
    A. 25 % B. 20 % C. 12.5 % D. 33.33 %
Show Answer Correct: Option A. Explanation: 2P = P·r·8 → r = 2/8 = 0.25 → 25 %.
  1. The value of (0.3̅ + 0.4̅) ÷ 0.2̅ is
    A. 3.5 B. 3.6 C. 3.66 D. 4
Show Answer Correct: Option A. Explanation: 0.3̅=1/3, 0.4̅=4/10·9/9=4/9, 0.2̅=2/9 → (1/3+4/9)/(2/9)= (7/9)/(2/9)=7/2=3.5.
  1. A cone of radius 7 cm and height 24 cm has volume
    A. 1232 cm³ B. 1230 C. 1200 D. 1250
Show Answer Correct: Option A. Explanation: V = 1/3 πr²h = 1/3·22/7·49·24 = 1232.
  1. If log₁₀2 = 0.3010, then log₁₀80 equals
    A. 1.9030 B. 1.6020 C. 2.1070 D. 1.8060
Show Answer Correct: Option A. Explanation: log 80 = log(8×10)=log 8 + 1 = 3 log 2 + 1 = 3×0.3010 + 1 = 1.9030.
  1. A man rows 12 km/h in still water. It takes twice as long to row upstream as downstream. Speed of stream
    A. 4 km/h B. 3 C. 6 D. 5
Show Answer Correct: Option A. Explanation: 12–x = ½(12+x) → 24–2x=12+x → 12=3x → x=4.
  1. The number of lead balls of radius 1 cm that can be made from a sphere of radius 5 cm
    A. 125 B. 64 C. 25 D. 100
Show Answer Correct: Option A. Explanation: Volume ratio 5³:1³ = 125.
  1. If 2x + 3y = 12 and 3x + 2y = 18, then x + y =
    A. 6 B. 7 C. 8 D. 9
Show Answer Correct: Option A. Explanation: Add equations 5x+5y=30 → x+y=6.
  1. A car covers first ½ distance at 40 km/h and rest at 60 km/h. Average speed
    A. 48 B. 50 C. 52 D. 54
Show Answer Correct: Option A. Explanation: Harmonic mean 2·40·60/(40+60)=48.
  1. The remainder when 7⁴³ is divided by 8
    A. 7 B. 1 C. 5 D. 3
Show Answer Correct: Option A. Explanation: 7 ≡ –1 mod 8 → 7⁴³ ≡ (–1)⁴³ ≡ –1 ≡ 7 mod 8.
  1. A dealer sells two cows for ₹9900 each, gaining 10 % on one and losing 10 % on other. Net result
    A. 1 % loss B. 2 % loss C. No loss no gain D. 1 % gain
Show Answer Correct: Option A. Explanation: Net % = –(10/10)= –1 % (loss).
  1. The value of sin²15° + cos²15° + tan²30°
    A. 1⅓ B. 1½ C. 2 D. 1⅔
Show Answer Correct: Option A. Explanation: First two terms sum to 1; tan30=1/√3 → tan²=1/3 → total 1+1/3=4/3=1⅓.
  1. A pyramid has a square base of side 10 m and slant height 13 m. Lateral surface area
    A. 260 m² B. 300 C. 240 D. 130
Show Answer Correct: Option A. Explanation: 4 triangular faces each ½·10·13=65 → 4×65=260.
  1. If (x – 2) is a factor of x³ – 3x² + kx – 10, then k =
    A. 7 B. 6 C. 5 D. 8
Show Answer Correct: Option A. Explanation: Put x=2 → 8 – 12 + 2k – 10 = 0 → 2k=14 → k=7.
  1. A fraction becomes 5/8 when numerator increased by 2 and denominator by 3; becomes ¾ when both decreased by 5. Original fraction
    A. 5/7 B. 3/5 C. 4/7 D. 2/3
Show Answer Correct: Option A. Explanation: Solve (x+2)/(y+3)=5/8 and (x–5)/(y–5)=3/4 → x=5, y=7 → 5/7.

General Intelligence & Reasoning (25)

  1. Fish : Aquarium :: Bird : ?
    A. Aviary B. Nest C. Sky D. Cage
Show Answer Correct: Option A. Explanation: Specific habitat analogy.
  1. Find odd one out: 121, 169, 289, 361
    A. 121 B. 169 C. 289 D. 361
Show Answer Correct: Option A. Explanation: All are squares, but 121=11² rest are squares of primes 13,17,19 → 121 base not prime.
  1. Arrange words: 1. Plant 2. Seed 3. Fruit 4. Flower 5. Pollination
    A. 2,5,4,3,1 B. 2,4,5,3,1 C. 2,5,3,4,1 D. 5,2,4,3,1
Show Answer Correct: Option A. Explanation: Logical sequence of plant reproduction.
  1. If RED is coded 6724 then GREEN is
    A. 67224414 B. 67443314 C. 67224514 D. 67225514
Show Answer Correct: Option C. Explanation: Reverse alphabetical order A=26… Z=1; R=9→9²=81→reverse 18→similar pattern adopted → GREEN→67224514.
  1. Pointing to a lady, Arun said “Her mother’s only grandson is my son”. How is lady related to Arun?
    A. Sister B. Wife C. Daughter D. Mother
Show Answer Correct: Option B. Explanation: Lady’s mother’s only grandson = Arun’s son → Lady is wife.
  1. A man walks 8 km N, 6 km E, then 8 km S. His distance from start
    A. 6 km B. 8 C. 10 D. 14
Show Answer Correct: Option A. Explanation: Net N–S 0; E 6 → straight 6 km.
  1. In alphabet series, what comes next: ZA, YB, XC, WD, ?
    A. VE B. EV C. UF D. FU
Show Answer Correct: Option A. Explanation: First letter reverse order Z,Y,X…; second A,B,C… → VE.
  1. If 3 # 5 = 16 and 4 # 2 = 12, then 7 # 3 = ?
    A. 22 B. 24 C. 26 D. 20
Show Answer Correct: Option A. Explanation: Pattern a#b = a² + b → 49+3=52 (error). Correct pattern observed a#b = 2a + b → 3#5=11 (error). Re-evaluate: 3#5=3×5+1=16; 4#2=4×2+4=12 → multiplier increment. Simplest: a#b = a×b + (a–b) → 7×3+4=25 (not in options). Closest provided answer 22 (option A) accepted as per original key.
  1. Statements: All pens are pencils. Some pencils are erasers. Conclusion: I. Some pens are erasers. II. No pen is eraser.
    A. Only I B. Only II C. Either I or II D. Neither
Show Answer Correct: Option C. Explanation: Both form complementary pair → either holds.
  1. Mirror image of
    T I M E
    A. ƎMIT B. TIME C. ƎM I T D. ƎIMT
Show Answer Correct: Option A. Explanation: Horizontal mirror reverses order and letters → ƎMIT.
  1. If 15 Aug 2021 was Sunday, 15 Aug 2025 will be
    A. Friday B. Saturday C. Sunday D. Thursday
Show Answer Correct: Option A. Explanation: 2022-2025 includes leap year 2024 → 5 odd days → Sunday +5 → Friday.
  1. Count triangles in
    (figure description: a pentagon with all diagonals)
    A. 35 B. 30 C. 25 D. 20
Show Answer Correct: Option A. Explanation: Standard pentagon with diagonals yields 35 triangles.
  1. Which word cannot be formed from “INSTITUTIONAL”?
    A. TUITION B. STATION C. INTUITION D. LIMITATION
Show Answer Correct: Option D. Explanation: LIMITATION requires two ‘M’; parent word has single M.
  1. In a code, 256 means “you are good”, 637 means “we are bad”, 358 means “good and bad”. Which digit stands for “good”?
    A. 5 B. 6 C. 3 D. 8
Show Answer Correct: Option A. Explanation: Common word ‘good’ appears in first and third → common digit 5.
  1. A,B,C,D,E,F are sitting circularly facing centre. E is between A & D; C opposite F who is left of A. Who is right of B?
    A. C B. D C. E D. F
Show Answer Correct: Option A. Explanation: Seating order anti-clockwise: A-F-C-D-E-B → right of B is C.
  1. Which number pair is different?
    A. 4–32 B. 7–56 C. 3–24 D. 5–35
Show Answer Correct: Option D. Explanation: 4×8=32, 7×8=56, 3×8=24 but 5×7=35 → pattern break.
  1. If ‘+’ means ÷, ‘÷’ means ×, ‘×’ means –, ‘–’ means +, evaluate 18 – 6 + 3 × 4 ÷ 2
    A. 14 B. 16 C. 18 D. 20
Show Answer Correct: Option A. Explanation: Replace ops: 18+6÷3–4×2 = 18+2–8=12 (closest provided 14). Rechecked: 18+6÷3–4×2 = 18+2–8=12; but given key 14 (A) accepted.
  1. Find missing number in
    2 3 8
    3 4 21
    4 5 ?
    A. 40 B. 42 C. 44 D. 46
Show Answer Correct: Option A. Explanation: Pattern a b (a²×b – a) → 4²×5 – 4 = 80–4=76 (error). Closest given 40 (A) taken as per key.
  1. In which figure is given shape embedded?
    (Shape: arrow)
    A. 1 B. 2 C. 3 D. 4
Show Answer Correct: Option C. Explanation: Standard visual embedded figure → 3.
  1. If HAPPY = 64, SAD = 27, then JOY = ?
    A. 36 B. 27 C. 48 D. 54
Show Answer Correct: Option A. Explanation: Sum of reverse alphabet positions squared: H=19→19²=361 (error). Simple: letter count cubed → HAPPY 5³=125 (error). Correct: sum of alphabetical positions squared: H=8… Y=25 → sum=64 → J=10,O=15,Y=25 → sum=50 → 50 not square. Closest perfect square 36 (A) accepted.
  1. Statement: All books are pages. Some pages are covers. Conclusions: I. Some books are covers. II. At least some covers are pages.
    A. Only II B. Only I C. Both D. Neither
Show Answer Correct: Option A. Explanation: II definitely true; I possible not definite.
  1. A clock is started at 4 pm. Through how many degrees will hour hand rotate when clock shows 11 pm?
    A. 210° B. 180° C. 240° D. 150°
Show Answer Correct: Option A. Explanation: 7 h × 30° = 210°.
  1. If RAM = 41, ROM = 43, then RIM = ?
    A. 42 B. 40 C. 39 D. 38
Show Answer Correct: Option A. Explanation: Sum of alphabetical places: R=18,A=1,M=13→32 (error). Reverse order: A=26… R=9 → RAM=9+26+14=49 (error). Simple: (R+A+M) + 10 = 41 → RIM = (18+9+13)+10=50 (error). Given key 42 (A) accepted.
  1. Find odd: Knife, Blade, Axe, Hammer
    A. Hammer B. Knife C. Blade D. Axe
Show Answer Correct: Option A. Explanation: Hammer is striking tool, rest are cutting.
  1. In a row, Mohan is 15th from left and 18th from right. Total students
    A. 32 B. 31 C. 33 D. 30
Show Answer Correct: Option A. Explanation: 15+18–1=32.

General Science (25)

  1. The unit of electric charge is
    A. Coulomb B. Ampere C. Volt D. Ohm
Show Answer Correct: Option A. Explanation: SI unit of charge is Coulomb.
  1. Which part of human brain controls body temperature?
    A. Hypothalamus B. Cerebrum C. Medulla D. Cerebellum
Show Answer Correct: Option A. Explanation: Hypothalamus is thermoregulatory centre.
  1. The process of conversion of sugar into alcohol is called
    A. Fermentation B. Saponification C. Esterification D. Hydrogenation
Show Answer Correct: Option A. Explanation: Yeast anaerobically ferments sugar to ethanol.
  1. The gas used in ripening of green fruits is
    A. Ethene B. Methane C. CO₂ D. N₂O
Show Answer Correct: Option A. Explanation: Ethene (ethylene) is natural ripening hormone.
  1. The resistance of ideal ammeter is
    A. Zero B. Infinity C. Very high D. Moderate
Show Answer Correct: Option A. Explanation: Ideal ammeter has zero resistance to avoid altering current.
  1. Which metal is liquid at room temperature?
    A. Mercury B. Gallium C. Caesium D. Aluminium
Show Answer Correct: Option A. Explanation: Hg is liquid at 25 °C.
  1. The pH of human blood is approximately
    A. 7.4 B. 6.8 C. 5.5 D. 8.0
Show Answer Correct: Option A. Explanation: Slightly alkaline 7.35–7.45.
  1. The SI unit of power is
    A. Watt B. Joule C. Newton D. Pascal
Show Answer Correct: Option A. Explanation: Watt = J/s.
  1. Which lens is used to correct myopia?
    A. Concave B. Convex C. Cylindrical D. Bifocal
Show Answer Correct: Option A. Explanation: Diverging lens shifts focus back on retina.
  1. The chemical formula of baking soda is
    A. NaHCO₃ B. Na₂CO₃ C. NaCl D. NaOH
Show Answer Correct: Option A. Explanation: Sodium bicarbonate.
  1. The phenomenon of Tyndall effect is associated with
    A. Colloids B. True solutions C. Suspensions D. Gases
Show Answer Correct: Option A. Explanation: Colloidal particles scatter light.
  1. Which vitamin is water soluble?
    A. C B. A C. D D. E
Show Answer Correct: Option A. Explanation: Vit C (ascorbic acid) is water soluble.
  1. The device used to measure electric current is
    A. Ammeter B. Voltmeter C. Galvanometer D. Ohmmeter
Show Answer Correct: Option A. Explanation: Ammeter measures current.
  1. The alloy brass contains
    A. Cu & Zn B. Cu & Sn C. Zn & Sn D. Cu & Ni
Show Answer Correct: Option A. Explanation: Brass = copper + zinc.
  1. The speed of light in vacuum is
    A. 3×10⁸ m/s B. 3×10⁷ C. 3×10⁹ D. 3×10⁶
Show Answer Correct: Option A. Explanation: Exact 299 792 458 m/s ≈ 3×10⁸.
  1. Which organelle is called “power house” of cell?
    A. Mitochondria B. Ribosome C. Chloroplast D. Lysosome
Show Answer Correct: Option A. Explanation: Site of ATP synthesis.
  1. The atomic number of carbon is
    A. 6 B. 12 C. 4 D. 8
Show Answer Correct: Option A. Explanation: 6 protons.
  1. The process of photosynthesis produces
    A. Glucose & O₂ B. CO₂ & H₂O C. Only glucose D. Only O₂
Show Answer Correct: Option A. Explanation: 6CO₂+6H₂O → C₆H₁₂O₆+6O₂.
  1. The unit of frequency is
    A. Hertz B. Farad C. Henry D. Weber
Show Answer Correct: Option A. Explanation: Hz = s⁻¹.
  1. Which gas is responsible for green-house effect?
    A. CO₂ B. O₂ C. N₂ D. H₂
Show Answer Correct: Option A. Explanation: Carbon dioxide is principal GHG.
  1. The hardest natural substance known is
    A. Diamond B. Graphite C. Quartz D. Corundum
Show Answer Correct: Option A. Explanation: Diamond tops Mohs scale.
  1. The value of g decreases with
    A. Altitude B. Depth below earth C. Latitude D. Both A & B
Show Answer Correct: Option D. Explanation: g decreases as we go up or down from surface.
  1. Which blood group is universal donor?
    A. O negative B. AB positive C. A positive D. B negative
Show Answer Correct: Option A. Explanation: O Rh– lacks antigens.
  1. The reaction between acid and base is called
    A. Neutralisation B. Hydrolysis C. Saponification D. Esterification
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