GSA Practice Set 27 – General Science & Ability (20 Original MCQs Explained)

Intro: This is GSA Practice Set 27 — 20 original MCQs in the GSA pattern: General Science (Q1–Q10), Quantitative Ability (Q11–Q15), General Knowledge (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 closest to the Sun? A) Venus B) Mercury C) Earth D) Mars
Q2. What is the chemical symbol for gold? A) Ag B) Au C) Gd D) Go
Q3. What is the unit of power? A) Volt B) Ohm C) Watt D) Ampere
Q4. Which organ pumps blood around the human body? A) Liver B) Kidney C) Heart D) Lungs
Q5. At what temperature does water boil? A) 90°C B) 100°C C) 110°C D) 120°C
Q6. Which gas do humans exhale? A) Oxygen B) Nitrogen C) Carbon dioxide D) Hydrogen
Q7. Which is the tallest land animal? A) Elephant B) Giraffe C) Horse D) Camel
Q8. Which is the largest bird in the world? A) Eagle B) Ostrich C) Penguin D) Emu
Q9. What is the chemical formula for water? A) CO2 B) H2O C) NaCl D) O2
Q10. Which vitamin helps blood clotting? A) Vitamin A B) Vitamin C C) Vitamin D D) Vitamin K

Section B — Quantitative Ability (Q11–Q15):

Q11. What is 25% of 400? A) 80 B) 90 C) 100 D) 110
Q12. Next number in the series: 5, 10, 20, 40, ? A) 60 B) 70 C) 80 D) 90
Q13. If i – 5 = 15, what is i? A) 18 B) 19 C) 20 D) 21
Q14. What is the square of 12? A) 124 B) 134 C) 144 D) 154
Q15. What is 18 × 6? A) 98 B) 108 C) 118 D) 128

Section C — General Knowledge (Q16–Q20):

Q16. Which is the capital of Japan? A) Beijing B) Seoul C) Tokyo D) Bangkok
Q17. Which is the smallest continent? A) Europe B) Australia C) Antarctica D) Africa
Q18. What is the freezing point of water in Fahrenheit? A) 0°F B) 32°F C) 50°F D) 100°F
Q19. Which metal is the best conductor of electricity? A) Copper B) Silver C) Iron D) Aluminium
Q20. How many sides does a pentagon have? A) 4 B) 5 C) 6 D) 7

Answer Key + Explained Answers:

Q1 – B) Mercury. Mercury is closest to the Sun. Venus is second, Earth is third, Mars is fourth.
Q2 – B) Au. Au is the symbol for gold. Ag is silver, Gd is gadolinium, Go is not a symbol.
Q3 – C) Watt. Watt is the unit of power. Volt is voltage, Ohm is resistance, Ampere is current.
Q4 – C) Heart. Heart pumps blood. Liver detoxifies, kidney filters, lungs exchange gases.
Q5 – B) 100°C. Water boils at 100°C. 90°C is hot, 110°C is above boiling, 120°C is above boiling.
Q6 – C) Carbon dioxide. Humans exhale carbon dioxide. Oxygen is inhaled, nitrogen is inert, hydrogen is in water.
Q7 – B) Giraffe. Giraffe is the tallest land animal. Elephant is largest, horse is tall, camel is tall — but giraffe is tallest.
Q8 – B) Ostrich. Ostrich is the largest bird. Eagle is predator, penguin is flightless, emu is large — but ostrich is largest.
Q9 – B) H2O. H2O is water. CO2 is carbon dioxide, NaCl is salt, O2 is oxygen.
Q10 – D) Vitamin K. Vitamin K helps blood clotting. Vitamin A is vision, Vitamin C is immunity, Vitamin D is bones.
Q11 – C) 100. 25% of 400 = 0.25 × 400 = 100.
Q12 – C) 80. Pattern: ×2: 5 × 2 = 10, 10 × 2 = 20, 20 × 2 = 40, 40 × 2 = 80. (60, 70, 90 are not ×2.)
Q13 – C) 20. i – 5 = 15, so i = 15 + 5 = 20.
Q14 – C) 144. Square of 12 = 12² = 12 × 12 = 144. (124, 134, 154 are wrong.)
Q15 – B) 108. 18 × 6 = 108. (98, 118, 128 are wrong.)
Q16 – C) Tokyo. Tokyo is the capital of Japan. Beijing is China, Seoul is Korea, Bangkok is Thailand.
Q17 – B) Australia. Australia is the smallest continent. Europe is second smallest, Antarctica is third, Africa is second largest.
Q18 – B) 32°F. Water freezes at 32°F (0°C). 0°F is -18°C, 50°F is 10°C, 100°F is 38°C.
Q19 – B) Silver. Silver is the best conductor of electricity. Copper is second, iron is poor, aluminium is moderate.
Q20 – B) 5. A pentagon has 5 sides (penta = five). Square has 4, hexagon has 6, heptagon has 7.

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 Mercury (closest to Sun), Au (gold), Watt (power), Heart (pumps blood), 100°C (boils), CO2 (exhaled), Giraffe (tallest land), Ostrich (largest bird), H2O (water), Vitamin K (clotting). Quantitative Ability: practise percentages, ×2 series, algebra, squares, multiplication. General Knowledge: revise Tokyo (Japan), Australia (smallest continent), 32°F (freezing), Silver (best conductor), pentagon (5 sides). Re-attempt this set in 2 days.

Closing line: 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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