GSA Practice Set 15 – General Science & Ability (20 Original MCQs Explained)

This is GSA Practice Set 15 — 20 original MCQs: 10 General Science (Q1–Q10) and 10 General Ability (Q11–Q20). Attempt all 20 in 25 minutes without looking at the answers, then check the explained answers and review your weak section. These are original practice questions, not copied from FPSC papers or competitor question banks, and this site is not affiliated with FPSC. Scoring: 18–20 = strong. 15–17 = good. 12–14 = fair, revise the sections you missed. Below 12 = study the weak-section review, then re-attempt in 2 days.

Section A — General Science (Q1–Q10):

Q1. Which is the largest bird in the world? A) Eagle B) Ostrich C) Penguin D) Peacock
Q2. Which gas do plants absorb for photosynthesis? A) Oxygen B) Nitrogen C) Carbon dioxide D) Hydrogen
Q3. Which is the fastest animal in water? A) Shark B) Dolphin C) Sailfish D) Whale
Q4. Which organ stores bile in the human body? A) Liver B) Gallbladder C) Pancreas D) Spleen
Q5. What is the chemical symbol for copper? A) Co B) Cu C) Cp D) Cr
Q6. Which planet has the most moons (as of recent counts)? A) Jupiter B) Saturn C) Uranus D) Neptune
Q7. Which vitamin helps blood to clot? A) Vitamin A B) Vitamin C C) Vitamin D D) Vitamin K
Q8. Which animal is called the “ship of the desert”? A) Horse B) Camel C) Donkey D) Elephant
Q9. What is the main function of leaves in a plant? A) Absorb water B) Make food C) Support the plant D) Store food
Q10. Which is the longest bone in the human body? A) Tibia B) Femur C) Humerus D) Radius

Section B — General Ability (Q11–Q20):

Q11. If 2 shirts cost Rs 800, what is the cost of 1 shirt (same price)? A) Rs 200 B) Rs 300 C) Rs 400 D) Rs 600
Q12. Next number in the series: 1, 2, 4, 8, ? A) 10 B) 12 C) 16 D) 20
Q13. What is 15% of 200? A) 15 B) 20 C) 30 D) 45
Q14. If w + 8 = 20, what is w? A) 8 B) 12 C) 20 D) 28
Q15. What is the square of 20? A) 200 B) 300 C) 400 D) 500
Q16. What is the cube of 5? A) 25 B) 75 C) 125 D) 150
Q17. How many sides does a triangle have? A) 2 B) 3 C) 4 D) 5
Q18. How many hours are there in 3 days? A) 24 B) 48 C) 72 D) 96
Q19. What is 80 + 90? A) 150 B) 160 C) 170 D) 180
Q20. What is 1000 – 250? A) 650 B) 700 C) 750 D) 850

Answer Key + Explained Answers:

Q1 – B) Ostrich. Ostrich is the largest bird (up to 2.8 m, 150 kg). Eagle is smaller, penguin is flightless, peacock is smaller.
Q2 – C) Carbon dioxide. Plants absorb CO2 for photosynthesis (and release oxygen). Oxygen is released, nitrogen is inert, hydrogen is trace.
Q3 – C) Sailfish. Sailfish is the fastest animal in water (up to about 110 km/h). Shark is slower, dolphin is slower, whale is slower.
Q4 – B) Gallbladder. Gallbladder stores bile (made by the liver). Liver makes bile, pancreas makes enzymes, spleen filters blood.
Q5 – B) Cu. Copper is Cu (from Latin “cuprum” = copper). Co is cobalt, Cp is not a symbol, Cr is chromium.
Q6 – B) Saturn. Saturn has the most moons (146 confirmed, as of recent counts). Jupiter has 95, Uranus has 28, Neptune has 16.
Q7 – D) Vitamin K. Vitamin K helps blood to clot. Vitamin A (vision), C (immunity), D (bones) do not clot blood.
Q8 – B) Camel. Camel is the “ship of the desert” (carries loads across deserts). Horse, donkey, and elephant are not given this title.
Q9 – B) Make food. Leaves make food (photosynthesis). Roots absorb water, stems support, fruits / seeds store food.
Q10 – B) Femur. Femur (thigh bone) is the longest bone. Tibia is the shin bone, humerus is the arm bone, radius is the forearm bone.
Q11 – C) Rs 400. One shirt = 800 divided by 2 = Rs 400.
Q12 – C) 16. Each term doubles: 1 × 2 = 2, 2 × 2 = 4, 4 × 2 = 8, 8 × 2 = 16. (10, 12, 20 are not ×2.)
Q13 – C) 30. 15% of 200 = 0.15 × 200 = 30.
Q14 – B) 12. w + 8 = 20, so w = 20 – 8 = 12.
Q15 – C) 400. 20 squared = 20 × 20 = 400. (200, 300, 500 are not squares of 20.)
Q16 – C) 125. 5 cubed = 5 × 5 × 5 = 125. (25 = 5 squared, 75 and 150 are not cubes of 5.)
Q17 – B) 3. A triangle has 3 sides. 2 sides cannot make a shape, quadrilateral has 4, pentagon has 5.
Q18 – C) 72. 3 days × 24 hours = 72 hours.
Q19 – C) 170. 80 + 90 = 170.
Q20 – C) 750. 1000 – 250 = 750.

Weak-Section Review:

Which section did you score lowest in? Write the 3 questions you missed, the correct answers, and one line for each explaining why. General Science: revise ostrich (largest bird), CO2 (photosynthesis), sailfish (fastest in water), gallbladder (stores bile), Cu (copper), Saturn (most moons), Vitamin K (blood clotting), camel (ship of desert), leaves (make food), femur (longest bone). General Ability: practise unitary method, doubling series, percentages, algebra, squares / cubes, shapes (triangle 3), time (3 days = 72 hours), addition / subtraction. Re-attempt this set in 2 days.

These are original practice questions written for csspastpapers.pk. They are not FPSC official questions, and this site is not affiliated with FPSC.

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