GSA Practice Set 22 – General Science & Ability (20 Original MCQs Explained)

ByArsalan Khan

This is GSA Practice Set 22 — 20 original MCQs in the GSA pattern: General Science (Q1–Q10), Mathematics (Q11–Q15), and General Ability / Everyday Science (Q16–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 planet is known as the “Morning Star”? A) Mars B) Venus C) Jupiter D) Saturn

Q2. What is the chemical symbol for iron? A) Ir B) Fe C) In D) I

Q3. What is the SI unit of force? A) Joule B) Watt C) Newton D) Pascal

Q4. Which organ pumps blood around the body? A) Liver B) Lung C) Heart D) Kidney

Q5. What is the boiling point of water at sea level? A) 90°C B) 95°C C) 100°C D) 110°C

Q6. Which gas is used in balloons? A) Oxygen B) Nitrogen C) Helium D) Carbon dioxide

Q7. What is the largest organ of the human body? A) Liver B) Skin C) Lung D) Brain

Q8. Which is the fastest land animal? A) Lion B) Horse C) Cheetah D) Tiger

Q9. What is the chemical formula for water? A) CO2 B) H2O C) O2 D) NaCl

Q10. Which vitamin is produced in skin by sunlight? A) Vitamin A B) Vitamin B C) Vitamin C D) Vitamin D

Section B — Mathematics (Q11–Q15):

Q11. What is 15% of 200? A) 15 B) 20 C) 30 D) 45

Q12. Next number in the series: 2, 4, 8, 16, ? A) 20 B) 24 C) 32 D) 36

Q13. If x + 7 = 20, what is x? A) 11 B) 12 C) 13 D) 14

Q14. What is the square root of 144? A) 11 B) 12 C) 13 D) 14

Q15. What is 12 × 11? A) 121 B) 122 C) 132 D) 142

Section C — General Ability / Everyday Science (Q16–Q20):

Q16. What is the largest mammal in the world? A) African elephant B) Blue whale C) Giraffe D) Hippopotamus

Q17. What is the smallest planet in the solar system? A) Venus B) Mars C) Mercury D) Pluto

Q18. Which blood cells carry oxygen around the body? A) White blood cells B) Platelets C) Red blood cells D) Plasma

Q19. What is the freezing point of water? A) 0°C B) 10°C C) 32°C D) 100°C

Q20. If a triangle has angles 60°, 60°, what is the third angle? A) 30° B) 45° C) 60° D) 90°

Answer Key + Explained Answers:

Q1 – B) Venus. Venus is known as the “Morning Star” (and “Evening Star”). Mars is the Red Planet, Jupiter is largest, Saturn is ringed.

Q2 – B) Fe. Fe is the chemical symbol for iron (from ferrum). Ir is iridium, In is indium, I is iodine.

Q3 – C) Newton. Newton is the SI unit of force. Joule is energy, watt is power, pascal is pressure.

Q4 – C) Heart. The heart pumps blood around the body. Liver filters blood, lung exchanges gases, kidney filters waste.

Q5 – C) 100°C. Water boils at 100°C at sea level. 90°C, 95°C, 110°C are wrong.

Q6 – C) Helium. Helium is used in balloons (lighter than air). Oxygen is for breathing, nitrogen is inert, carbon dioxide is heavier.

Q7 – B) Skin. Skin is the largest organ of the human body. Liver is largest internal organ, lung is for breathing, brain is for thinking.

Q8 – C) Cheetah. Cheetah is the fastest land animal (up to 110 km/h). Lion is slower, horse is slower, tiger is slower.

Q9 – B) H2O. H2O is the chemical formula for water. CO2 is carbon dioxide, O2 is oxygen, NaCl is salt.

Q10 – D) Vitamin D. Vitamin D is produced in skin by sunlight. Vitamin A is for vision, vitamin B is for energy, vitamin C is for immunity.

Q11 – C) 30. 15% of 200 = 0.15 × 200 = 30.

Q12 – C) 32. Each term doubles: 2 × 2 = 4, 4 × 2 = 8, 8 × 2 = 16, 16 × 2 = 32. (20, 24, 36 are not ×2.)

Q13 – C) 13. x + 7 = 20, so x = 20 – 7 = 13.

Q14 – B) 12. Square root of 144 = 12 (12 × 12 = 144). 11² = 121, 13² = 169, 14² = 196.

Q15 – C) 132. 12 × 11 = 132. (121 = 11 × 11, 122 is wrong, 142 is wrong.)

Q16 – B) Blue whale. Blue whale is the largest mammal (up to 30 m). African elephant is largest land animal, giraffe is tallest, hippopotamus is third-largest land mammal.

Q17 – C) Mercury. Mercury is the smallest planet. Venus is second, Mars is third, Pluto is a dwarf planet.

Q18 – C) Red blood cells. Red blood cells carry oxygen (haemoglobin). White blood cells fight infection, platelets clot blood, plasma carries cells.

Q19 – A) 0°C. Water freezes at 0°C (32°F). 10°C is above freezing, 32°C is warm, 100°C is boiling.

Q20 – C) 60°. Angles of a triangle sum to 180°: 60° + 60° + ? = 180°, so ? = 60°. (30°, 45°, 90° are wrong.)

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 Venus (Morning Star), Fe (iron), Newton (force), heart (pumps blood), 100°C (boiling), helium (balloons), skin (largest organ), cheetah (fastest land animal), H2O (water), vitamin D (sunlight). Mathematics: practise percentages, ×2 series, algebra, square roots, multiplication. General Ability / Everyday Science: revise blue whale (largest mammal), Mercury (smallest planet), red blood cells (oxygen), 0°C (freezing), triangle angles (180°). 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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