Federal Public Service Commission

General Science & Ability

Competitive Examination-2023

PART-I (MCQs)
1. Which gas is most abundant in Earth's atmosphere?
A) Oxygen | B) Nitrogen | C) Carbon Dioxide | D) Argon
2. Which of the following elements is essential for the production of thyroid hormones?
A) Iodine | B) Calcium | C) Iron | D) Potassium
3. What is the chemical formula for common table salt?
A) NaCl | B) MgCl | C) KCl | D) CaCl
4. Which organ in the human body is primarily responsible for filtering blood?
A) Liver | B) Kidneys | C) Heart | D) Lungs
5. Which gas is commonly known as "laughing gas"?
A) Carbon Dioxide | B) Oxygen | C) Nitrous oxide | D) Helium
6. What is 15% of 240?
A) 24 | B) 30 | C) 32 | D) 36
7. The average of five numbers is 50. If one of the numbers is 60, what is the sum of the remaining four numbers?
A) 190 | B) 200 | C) 220 | D) 240
8. If a number is multiplied by 3 and then reduced by 5, the result is 40. What is the original number?
A) 10 | B) 12 | C) 15 | D) 20
9. Which of the following fractions is equivalent to 3/5?
A) 6/10 | B) 2/5 | C) 9/15 | D) 7/10
10. If the price of a shirt is reduced by 25% and it is now sold for $75, what was the original price?
A) $85 | B) $100 | C) $110 | D) $120
11. In a sequence where each number is twice the previous one, starting from 2, what is the 5th number?
A) 8 | B) 16 | C) 32 | D) 64
12. Syllogism: If all pencils are erasers and all erasers are pens, which is true?
A) All pens are pencils | B) All pencils are pens | C) Some pens are pencils | D) Some pencils are erasers
13. Odd One Out: Which word does not belong in the group?
A) Cat | B) Lion | C) Dog | D) Tiger
14. In a class of 30, 18 study Math and 15 study Physics. If 10 study both, how many study neither?
A) 7 | B) 5 | C) 10 | D) 12
15. Sequence: A, C, F, J, O, ___?
A) P | B) U | C) T | D) V
16. Which of the following is a type of volatile memory used in computers?
A) RAM | B) ROM | C) SSD | D) Hard Disk
17. Which social media platform was rebranded as 'X' in 2023?
A) Facebook | B) Instagram | C) Twitter | D) LinkedIn
18. Which of the following is an example of cloud storage?
A) Google Drive | B) USB Drive | C) External Hard Disk | D) CD-ROM
19. Which country hosted the FIFA World Cup 2022?
A) Russia | B) Qatar | C) Brazil | D) USA
20. What is the main function of the World Health Organization (WHO)?
A) Global Health Advocacy | B) Trade Regulation | C) Economic Development | D) Disaster Management
PART-II (Subjective) SECTION-I

Question No. 2

(A) Define ceramic and nano-ceramic materials. Why the nano-ceramics show better properties than their ceramic counterparts? Write the applications of ceramic materials.
(B) What is ‘Black Hole’? How black holes are formed and discovered?
(C) Write two applications of each of the following electromagnetic radiations:
(i) Ultraviolet (ii) Infra-red (iii) Microwaves
(iv) Radio waves (v) X-rays.
(D) What is Wildfire? Explain its types, causes, spread and preventions.

Question No. 3

(A) (i) Why the bat and whale are considered as mammals? (ii) Write a note on liver juice ‘Bile’.
(B) How the urine is formed? Describe the role of kidney in excretion.
(C) (i) How a bacterial cell is different from a plant cell? (ii) What do you think cold-blooded animals are slowed down by low temperatures?
(D) What is hepatitis, its types, causes, prevention, and cure?

Question No. 4

(A) What is the difference between fog and smog? What are the causes of smog and its effects on human health? Write short note on any one of the latest technologies to eliminate smog to avoid atmospheric pollution.
(B) What is the role of oxygen-demanding wastes in water pollution? How it can be prevented?
(C) What is the biosphere? Write a note on the ‘Energy Resources’ available in the biosphere.
(D) What are the different layers of the atmosphere? On what basis these layers are classified? In which layer ‘Auroras’ are formed and where do satellites orbit?

Question No. 5

(A) What are antioxidants and why are they used in foods? Write a short note on natural and synthetic antioxidants.
(B) How the carbohydrates, proteins, and fats are digested in humans?
(C) How does the Navstar GPS system work for different applications?
(D) (i) Differentiate between network and internet. (ii) What is the difference among application, program and software?

SECTION-II

Question No. 6

(A) A telephone company charges initially Rs.0.50 and then Rs. 0.11 for every minute. Write an expression that gives the cost of a call that lasts N minutes.
(B) Find the missing number in the series below
(i) 1, 8, 4, 27, 9, ? (ii) 3,6,8,16,18,? (iii) 2, 8, 512, ?
(iv) 81 ,9,64 ,8,?,12 (v) 6, 11, 21, 36, 56, ?
(C) The perimeter of the rectangle given below is 114 cm. Find the area of the rectangle.
(D) Ahmad stands at point D, 2m in front of a spotlight at point A. He is 1.6m tall and is facing the wall of a building which is 10.5m away from him. How tall (BC) is his shadow on the wall of the building.

Question No. 7

(A) Ali is standing 10 meters away from a tree. The distance of his eyes from his feet is 1.5 meter. Given that the distance from his eyes to the top of the tree is 15 meters, find the height of the tree.
(B) Find out the correct word from the jumbled spellings given below.
LNUGEF, CKANS, CIREFE, EERAANMOGTP, MNIKPPU.
(C) Draw and write the total number of lines of symmetry in a regular hexagon and octagon. How many lines of symmetry are there in a circle?
(D) The height of the Egyptian pyramid is 146.6 meters and a base length is 230.6 meters. Find the volume of that pyramid.

Question No. 8

(A) Ali buys an oven for Rs. 36800 and sells it at a gain of 8.5%. For how much does he sell it?
(B) A card is drawn at random from a box containing 12 cards numbered 1,2,3,4,5,….,12. Find the probability of drawing (i) ‘8’, (ii) an even number, (iii) a perfect square, (iv) a negative number and (v) a number less than 13.
(C) The scintillation nuclear radiation detector detects the alpha rays per second. When the energy of the alpha rays (Eα) in MeV increases, the number of counts (Nc) on the detector also increases linearly as shown in the table below.
Eα (MeV) 0.25 0.45 0.65 1 1.4
Nc 17500 23500 29500 40000 52000
Draw the graph of Nc as a function of Eα (MeV) and find the energy of unknown alpha ray if the number of counts are 31600.
(D) The y is directly proportional to x2 and y = m for a particular value of x. Find an expression for y in terms of m, when this value of x is doubled.

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