Note: HED Lab Assistant ETEA Solved Paper held on 25 December 2022, Contains 61+ solved mcqs of General Science, General Knowledge, Pak Study, Physics and Chemistry.


1. The chemical formula of Chile Salt Petre is?

A. CaOcl2
C. NaNO3
D. Cao


Correct Answer: C. NaNO3


2. The heat transfer from a hotter place to a colder place with or without having a material medium in between is called?

A. Radiation
B. Conviction
C. Conduction
D. Sublimation


Correct Answer: C. Conduction


3. The value of thermal conductivity for copper is?

A. 240W/m k
B. 385W/m k
C. 400W/m k
D. 430W/m k


Correct Answer: B. 385W/m k


4. In Kelvin scale of temperature, the boiling point of water is marked as?

A. 212 K
B. 273 K
C. 280 K
D. 373 K


Correct Answer: D. 373 K


5. F = Kx is the mathematical expression of?

A. Newton’s Law
B. Hooke’s Law
C. Len’s Law
D. Faraday Law


Correct Answer: B. Hooke’s Law 


6. The oldest tennis tournament in the world is?

A. French Open
B. Australian Open
C. Wimbledon
D. US Open


Correct Answer: C. Wimbledon


7. International Court of Justice its head office in?

A. Russia
C. Canada
D. Netherland


Correct Answer: D. Netherland


8. Nippon is the former name of?

A. Nepal
B. Indonesia
C. Japan
D. Finland


Correct Answer: C. Japan


9. Identify the country which was the runner up of FIFA world cup 2018?

A. Brazil
B. Netherland
C. Croatia
D. Germany


Correct Answer: C. Croatia


10. Singapore was previously part of?

A. South Korea
B. Poland
C. Malaysia
D. Bangladesh


Correct Answer: C. Malaysia


11. Which of the following is the largest Gulf in the world?

A. Gulf of Africa
B. Gulf of Oman
C. Gulf of Arabia
D. Gulf of Mexico


Correct Answer: D. Gulf of Mexico


12. “GroundStroke” is associated with which of the following games?

A. Cricket
B. Badminton
C. Tennis
D. Hockey


Correct Answer: C. Tennis

Short Detail about mcqs

The term is commonly used in the sports of tennis and pickleball, and is counter to a volley shot which is taken before the ball has bounced.


13. The condition of after Standing from Ruku is known as?

A. Ruku
B. Jalsa
C. Qiyam
D. Sajda


Correct Answer: C. Qiyam


14. The British Government encouraged ___ educational Institutions?

A. Government
B. Private
C. Missionary
D. Religious


Correct Answer: A. Government


15. The Quaid-e-Azam presented his famous fourteen points in Response to?

A. Pirpur Report
B. Cabinet Mission
C. Crips Mission
D. Nehru Report


Correct Answer: D. Nehru Report


16. Shimla Deputation of 1906 had the following Purpose?

A. The Deputation was advised to take active part on politics
B. The Deputation was directed to be friendly with the rulers
C. To be in harmony with the Hindu Community of India
D. For future elections in the country muslim community would get separate electorate


Correct Answer: D. For future elections in the country muslim community would get separate electorate


17. Who was the care taker Prime Minister of Pakistan from 5 November 1996 to 27 February 1997?

A. Mir Balakh Sher Mazari
B. Malik Meraj Khalid
C. Moen Qureshi
D. Mohammad Mian Soomro


Correct Answer: B. Malik Meraj Khalid


18. Plastid are of ____types.

A. Two
B. Three
C. Four
D. Five


Correct Answer: B. Three

Detail about Mcqs

Plastids are double membrane-bound organelle that helps in photosynthesis. They have some specific pigments thus giving specific color to the plants. Due to these pigments plastids are divided into three types: 1. Chloroplasts 2. Chromoplasts 3. Leucoplasts.


19. Cell membrane is made of ____?

A. Cellulose Only
B. Proteins Only
C. Lipid Only
D. Lipids and Proteins


Correct Answer: D. Lipids and Proteins


20. Enzymes are organic catalysts. They are mainly ___ in nature.

A. Proteins
B. Fats
C. Starch
D. Carbohydrates


Correct Answer: A. Proteins


21. When a cell needs energy, the terminal phosphate bond of ATP is broken to release ___ energy.

A. 6.3 kcal
B. 6.6 Kcal
C. 7.3 Kcal
D. 7.6 Kcal


Correct Answer: C. 7.3 Kcal


22. Under resting condition, the rate of breathing is ___ times per minute.

A. 5-10
B. 15-20
C. 20-25
D. 30-35


Correct Answer: B. 15-20 Found in most reference

Detail about Mcqs

For humans, the typical respiratory rate for a healthy adult at rest is 12–15 breaths per minute. The respiratory center sets the quiet respiratory rhythm at around two seconds for an inhalation and three seconds exhalation. This gives the lower of the average rate at 12 breaths per minute. Average resting respiratory rates by age are:
birth to 6 weeks: 30–40 breaths per minute,
6 months: 25–40 breaths per minute
3 years: 20–30 breaths per minute
6 years: 18–25 breaths per minute
10 years: 17–23 breaths per minute
Adults: 15–18 breaths per minute
50 years: 18-25 breaths per minute
Elderly ≥ 65 years old: 12–28 breaths per minute.
Elderly ≥ 80 years old: 10-30 breaths per minute


23. In pre-diabetes, the blood glucose level at 8-10 hours fast will be ___ mg/100ml?

A. Above 126
B. From 70-99
C. Below 70
D. From 100-125


Correct Answer: D. From 100-125


24. In the central nervous system, myelinated axons from the ___ matter.

A. Brown
B. Black
C. Grey
D. White


Correct Answer: D. White


25. The straight line passing through the pole ‘p’ and the center of curvature “C” of a mirror is called the ___ of that mirror.

A. Aperture
B. Pole
C. Principal Focus
D. Principal Axis


Correct Answer: D. Principal Axis


26. If the radius of curvature of a concave mirror is 60 cm, what is its focal length?

A. 30 cm
B. 60 cm
C. 90 cm
D. 120 cm


Correct Answer: A. 30 cm


27. The unit of electric intensity is?

B. NC-1
C. NC-2
D. None of these


Correct Answer: B. NC-1


28. In electrolysis, the electric current is produced due to the flow ___?

A. Positive Charges
B. Negative Charges
C. Both Positive and Negative Charges
D. None of these


Correct Answer: C. Both Positive and Negative Charges


29. Four resistors of 15 ohm are connected in series across a 30V battery. What current rows in the circuit?

A. 0.2 A
B. 0.3 A
C. 0.4 A
D. 0.5 A


Correct Answer: C. Both Positive and Negative Charges


30. Lenz Law is an example of the principle of conservation of ___?

A. Charge
B. Energy
C. Current
D. Voltage


Correct Answer: B. Energy


31. United Nations University is situated in:

A. Frankfurt, Germany
B. Montreal, Canada
C. Riyadh, Saudi Arabia
D. Tokyo, Japan


Correct Answer: D. Tokyo, Japan


32. Sky News is the famous news channel of which country?

A. Brazil
B. Belgium
C. Mexico
D. United Kingdom


Correct Answer: D. United Kingdom


33. Which country has the most post offices?

A. China
B. America
C. Russia
D. India


Correct Answer: D. India

Short Detail about mcqs

India has the largest postal network in the world with 1,55,618 post offices and over 5,66,000 employees. 


34. Which of the following is the most important Rukn of Hajj?

A. Sacrifice
B. Sayee
C. Tawaf
D. Praying 40 Prayers at Madina Munwar


Correct Answer: C. Tawaf


35. تکبیر تحریمہ ــــــ کا حصہ ہے؟

A. شرا ئط نماز
B. ارکان نماز
C. نماز کی سنتوں
D. ان میں سے کوئی نہیں


Correct Answer: B. ارکان نماز


36. The Simon Commission was welcomed with?

A. Stones
B. Sticks
C. Flowers
D. Flags


Correct Answer: D. Flags

Short Detail about Mcqs

On 30 October 1928, the Commission arrived in Lahore where it was met by protesters waving black flags. The protest was led by the Indian nationalist Lala Lajpat Rai, who had moved a resolution against the Commission in the Legislative Assembly of Punjab in February 1928. 


37. Where was Sir Syed Ahmad Khan born?

A. Bengal
B. Madras
C. Agra
D. Delhi


Correct Answer: D. Delhi


38. Khilafat Committee and the Congress participated in the election under the?

A. Act of 1919
B. Act of 1917
C. Act of 1921
D. Act of 1916


Correct Answer: A. Act of 1919


39. Who was the opponent of Ayub Khan in the Presidential election of 1965?

A. Mrs. Ali Khan
B. Miss Fatima Jinnah
C. Iskandar Mirza
D. General Yahya Khan


Correct Answer: B. Miss Fatima Jinnah


40. National fish of Pakistan is?

A. Mahseer
B. Blue Marlin
C. Flounder
D. Hogfish


Correct Answer: A. Mahseer


41. Quaid-e-Azam visited ___ times to Islamia College Peshawar?

A. Two
B. Three
C. Four
D. None of these


Correct Answer: B. Three ( In 1936, 1945 and 1948)


42. The electronic configuration of calcium (Ca) is?

A. 1s2 2s2 2p6 3s2 3p6 4s2
B. 1s2 2s2 2p6 3s2 3p2 4s2
C. 1s4 2s2 2p6 3s2 3p6
D. 1s2 2s1 2p2 3s2 3p4 4s2 4p4


Correct Answer: A. 1s2 2s2 2p6 3s2 3p6 4s2


43. The minimum energy required to remove the valence electron from the outermost shell of gaseous atom to form the positive ion is called ionization potential or ionization energy. Which one of the following atom will have highest ionization energy?

A. Helium
B. Boron
C. Fluorine
D. Lithium


Correct Answer: A. Helium


44. Hydrogen Chloride (HCL) boils at?

A. 2°C
B. -40°C
C. -65°C
D. -85°C


Correct Answer: D. -85°C


45. The pressure exerted by the vapors of the liquid when the rate of evaporation becomes equal to rate of condensation is called vapor pressure. Vapor pressure depend upon on which of the following factor/s?

A. Nature of liquid Only
B. Intermolecular Force Only
C. Size of the Molecules Only
D. All of these


Correct Answer: A. Nature of liquid Only


46. “Fog and humidity in air” is the example of which one of the following types of solution?

A. Gas in Liquid
B. Liquid in Gas
C. Liquid in Liquid
D. Gas in Gas


Correct Answer: C. Liquid in Liquid


47. When Oxygen is used as an oxidizing agent at high temperature and pressure by dissolving it in wastewater, the process is known as?

A. Wet Reduction
B. Wet Oxidation
C. Dry Reduction
D. Dry Oxidation


Correct Answer: B. Wet Oxidation


48. The name Platinum is derived from Platina which means little silver and is a ___ language word. 

A. Greek
B. Latin
C. Spanish
D. Egypt


Correct Answer: C. Spanish


49. A man whose mass is 75 kg walks up a flight of 12 steps each 20 cm high in 5 seconds. Find the power he develops in watt?

A. 360 Watts
B. 370 Watts
C. 390 Watts
D. 400 Watts


Correct Answer: A. 360 Watts


50. Work done = ____?

A. F = z
B. Kinetic Energy
C. Potential Energy
D. All of these


Correct Answer: B. Kinetic Energy


51. Mathematical form of centripetal force is?

A. Mv/r
B. Mv/r-2
C. Mv2/r
D. None of these


Correct Answer: C. Mv2/r


52. Conventionally, clockwise torque is taken as?

A. Positive
B. Negative
C. Positive as well as Negative
D. Neither Positive nor Negative


Correct Answer: B. Negative


53. Which of the following is a vector quantity?

A. Power
B. Volume
C. Electric Current
D. None of these


Correct Answer: D. None of these


54. Mass x Velocity = ____?

A. Momentum
B. Inertia
C. Moment Arm
D. Force


Correct Answer: A. Momentum


55. ___ is the maximum displacement of the body on either side of its equilibrium position?

A. Wavelength
B. Displacement
C. Amplitude
D. Frequency


Correct Answer: C. Amplitude


56. A wave transfers ____?

A. Heat
B. Energy
C. Force
D. Particle


Correct Answer: B. Energy


57. A celestial body revolving around a planet is known as?

A. Asteroids
B. Comets
C. Meteors
D. Moon


Correct Answer: D. Moon


58. First Sajdah is present in which surah of the Holy Quran?

A. Surah Anjum
B. Surah Baqra
C. Surah Rehman
D. Surah Namal


Correct Answer: A. Surah Anjum


59. Giving your things to another needy persons and sacrificing your need is called?

A. Generosity
B. Zakat
C. charity
D. Sacrifice


Correct Answer: C. charity


60. ___ deals with the study of insects?

A. Parasitology
B. Entomology
C. Taxonomy
D. Histology


Correct Answer: B. Entomology


61. The cell wall of puffballs is made of ___?

A. Marine
B. Cellulose
C. Chitin
D. None of these


Correct Answer: C. Chitin


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