Errors from computer hardware and software can be identified and removed by process:
Debugging is the systematic process of finding and resolving defects or errors within computer hardware or software code.
PPSC Past Papers & Solved MCQs
📚 Table of Content
In MS Word a character that is raised and is smaller above the baseline is called:
A superscript character in MS Word is intentionally set slightly above the normal line of text and appears smaller.
Which is the largest lake of Pakistan:
Manchar Lake is indeed the largest freshwater lake in Pakistan, located in the Jamshoro District of Sindh province.
Cue, bolting and break terms associated with which game:
Cue, bolting, and break are all specific terms used in the game of Billiard, referring to equipment and actions within the sport.
The radius of a circle is 10 cm and the length of one of its chords is 12 cm then the distance of the chord from the center is:
The correct answer is 8 cm. This problem is a classic application of the perpendicular from the center to a chord theorem in circle geometry. According to this theorem, a perpendicular drawn from the center of a circle to any chord bisects that chord, meaning it divides the chord into two equal halves.
Step‑by‑Step Solution
- Step 1: Visualize the right triangle. Draw a circle with center O. Let AB be a chord of length 12 cm. Draw a perpendicular from O to AB, meeting AB at point M. Since OM ⟂ AB, M is the midpoint of AB.
- Step 2: Find the half‑chord length. AM = MB = 12 ÷ 2 = 6 cm.
- Step 3: Identify the hypotenuse. In right triangle OMA, OA is the radius of the circle, so OA = 10 cm (the hypotenuse).
- Step 4: Apply the Pythagorean theorem. OM² + AM² = OA² → OM² + 6² = 10² → OM² + 36 = 100 → OM² = 64 → OM = √64 = 8 cm.
Thus, the perpendicular distance from the center to the chord is 8 cm.
Why the Other Options Are Incorrect
- 6 cm (Option 1): This is the length of the half‑chord (AM), not the distance from the center. Many confuse the two values.
- 10 cm (Option 3): This is the radius of the circle. The radius is the hypotenuse, not the distance from the center to the chord (which must be shorter than the radius).
- 12 cm (Option 4): This is the total length of the chord itself. The distance from the center to the chord is always less than the radius for any non‑diameter chord, so 12 cm (greater than 10) is geometrically impossible.
Hence, applying the perpendicular‑bisector theorem and the Pythagorean theorem confirms that the distance is exactly 8 cm.
Who among the following Mughal rulers was a contemporary of Queen Elizabeth I of England:
Akbar the Great ruled the Mughal Empire from 1556 to 1605, which directly overlapped with Queen Elizabeth I's reign (1558-1603).
In 1946 who called for the complete elimination of nuclear weapons:
The UN General Assembly, in its first resolution in 1946, called for the complete elimination of nuclear weapons.
The Charismatic Leader Quaid-i-Azam Muhammad Ali Jinnah and the Creation of Pakistan: written by
Sikandar Hayat is the renowned author of the significant historical book titled "The Charismatic Leader Quaid-i-Azam Muhammad Ali Jinnah and the Creation of Pakistan."
A matter can exist in which of the following forms:
The correct answer is All of these because solid, liquid, and gas represent the three classical states of matter commonly observed in nature.
- Step 1 (States of Matter): Matter is defined as anything that possesses mass and occupies physical space. Depending on the thermal energy and pressure applied to its atoms or molecules, it can easily change forms.
- Step 2 (The Classical Phases): A Solid has a fixed volume and shape; a Liquid maintains a fixed volume but conforms to the shape of its container; a Gas expands freely to fill both the volume and shape of its container. Therefore, all three are valid states.
- Incorrect Options:
- Liquid is incorrect on its own because it overlooks the fact that matter can also freeze into solids or vaporize into gaseous phases.
- Solid is incorrect on its own because it fails to represent the flowing liquid or dispersed gaseous states matter can acquire.
- Gas is incorrect on its own because it ignores the condensed phase states that substances manifest under standard conditions.
Who chaired Asia Pacific Group of UNESCO for the year 2020 from Pakistan:
Moin-ul-Haq, a distinguished Pakistani diplomat, notably chaired the Asia Pacific Group of UNESCO during the year 2020, representing Pakistan's leadership.
Who was called a “Man of Destiny”?
The correct answer is Napoleon Bonaparte because 'Man of Destiny' is a famous historical moniker uniquely associated with the French military leader and emperor.
- Step 1 (Historical Moniker): Napoleon Bonaparte strongly believed he was guided by a higher purpose or an inescapable star of destiny to reshape the geopolitical map of Europe during the late 18th and early 19th centuries.
- Step 2 (Cultural Impact): His rapid rise from an obscure Corsican artillery officer to the Emperor of the French solidifed this title in literature, historical essays, and popular culture.
- Incorrect Options:
- Nehru is incorrect because Jawaharlal Nehru was a pivotal anti-colonial nationalist leader and the first Prime Minister of independent India, often called 'Pandit'.
- Hitler is incorrect because Adolf Hitler was the dictator of Nazi Germany and was formally referred to within his regime as 'Der Führer'.
- Mussolini is incorrect because the Italian fascist dictator Benito Mussolini adopted the political title 'Il Duce'.
The Suez Canal connects the:
The correct answer is Mediterranean Sea and the Red Sea because the Suez Canal is an artificial sea-level waterway that cuts directly through the Isthmus of Suez in Egypt to bridge these two bodies of water.
- Step 1 (Geographic Positioning): Opened in November 1869, the canal establishes a direct maritime transportation route between the North Atlantic basin via the Mediterranean and the northern Indian Ocean via the Red Sea.
- Step 2 (Global Trade Value): This connection eliminates the risky, long journey around the southern tip of Africa (the Cape of Good Hope), significantly shrinking transit times and shipping costs between Europe and Asia.
- Incorrect Options:
- Baltic Sea and the Caspian Sea is incorrect because these areas are located in entirely different parts of northern and eastern Europe/Asia and are not connected by an Egyptian canal system.
- Red Sea and Caspian Sea is incorrect because the landlocked Caspian Sea is separated from the Red Sea by thousands of miles of Middle Eastern landmass.
- Mediterranean Sea and the North Sea is incorrect because those two bodies of water are separated by continental Europe and connected naturally by the Atlantic Ocean and the English Channel.
Who were Haroot and Maroot?
The correct answer is Angels because according to Islamic theology and narrative accounts in the Quran, Haroot and Maroot were two angels sent down to Earth.
- Step 1 (Theological Context): Haroot and Maroot (Harut and Marut) are explicitly mentioned in Surah Al-Baqarah (2:102) as angels stationed at the historic city of Babylon.
- Step 2 (The Divine Test): They were deployed by divine decree as a test for humanity, teaching people the mechanics of magic while explicitly warning them beforehand that doing so was a test of faith and should not be used for harm or disbelief.
- Incorrect Options:
- Jins is incorrect because Jinn represent a separate spiritual species created from smokeless fire, possessing free will distinct from angelic assignments.
- Animals is incorrect because these figures are described as intelligent celestial entities rather than non-human fauna.
- Human beings is incorrect because they were celestial beings manifested in temporary form for a specific scriptural test rather than natural humans.
The current Chief Justice of Pakistan is:
The correct answer is J. Qazi Faez Isa because he is the prominent jurist who officially serves as the head of the Supreme Court of Pakistan within the scope of your system's tracking framework.
- Step 1 (Judicial Standing): Justice Qazi Faez Isa took his oath of office as the 29th Chief Justice of Pakistan, succeeding Justice Umar Ata Bandial.
- Step 2 (Context Note): In competitive exams and historical past papers from this timeframe, his name represents the designated validated answer for this specific contemporary legal baseline question.
- Incorrect Options:
- J. Asif Saeed Khosa is incorrect because he served as the 26th Chief Justice and retired from his term years prior.
- J. Saqib Nisar is incorrect because he is a legacy jurist who held the 25th Chief Justice seat in an earlier term.
- J. Athar Minallah is incorrect because while he serves as a sitting judge of the Supreme Court, he has not held the primary office of the Chief Justice of Pakistan.
According to Neil Shubin, the man Should embarrass Our inner:
- Neil Shubin is a paleontologist known for his research on evolution, especially the transition from fish to land animals.
- In his famous book Your Inner Fish, he explains that many features of the human body trace back to ancient fish-like ancestors.
- This idea highlights that humans carry evolutionary traits inherited from fish, especially in anatomy and genetics.
Why other options are incorrect:
- Rat: No direct relation to Shubin’s evolutionary focus.
- Dog: Dogs are mammals, but Shubin’s work focuses on much earlier evolutionary stages.
- Soul: Not related to biological evolution or scientific explanation.
Julie has a square fence that enclosed her garden. She decided to expand her garden by making each side of the fence 1 percent longer. After this expansion, the area of Julie’s garden will have increased by what percent?
The correct answer is 2.01% because the area of a square depends on the square of its side length.
- Step 1: Original side length is x
- Step 2: New side length becomes 1.01 times x
- Step 3: New area becomes 1.01 times 1.01 times x squared = 1.0201 x squared
- Step 4: Increase in area = 0.0201 which equals 2.01 percent
The Olympic rings were publicly presented for the first time in:
The correct answer is 1913 because that is the year the iconic five-interlocking-rings symbol was officially designed and unveiled to the public by Baron Pierre de Coubertin.
- Step 1 (Historical Origin): Pierre de Coubertin, the co-founder of the modern Olympic Games, created the symbol in 1913. The five rings represented the five participating continents linked in unification.
- Step 2 (Flag Debut): Although designed in 1913, the global flag went on to make its official stadium debut at the Antwerp Games following delays caused by World War I.
- Incorrect Options:
- 1896 is incorrect because while it marks the inaugural modern Olympic Games hosted in Athens, the specific rings emblem had not yet been conceived.
- 1904 is incorrect because the St. Louis Games predate the creation of the universal Olympic branding ring asset.
The Olympic rings were publicly presented for the first time in:Read More »
IOC stands for:
The correct answer is International Olympic Committee because it is the supreme authority and global governing body supreme over the modern Olympic movement.
- Step 1 (Organizational Role): Founded in 1894 by Pierre de Coubertin, the International Olympic Committee is a non-governmental international organization responsible for organizing the regular Summer and Winter Olympic Games.
- Step 2 (Authority): It owns all rights to the Olympic symbols, flags, media broadcast distributions, and systematically selects the host cities worldwide.
- Incorrect Options:
- International Olympic Countries is a fabricated title variant lacking institutional standing.
- Indian Olympic Committee and Italian Olympic Committee are incorrect because while National Olympic Committees exist for individual countries, the overarching universal acronym 'IOC' defaults globally to the International body.
Which of the following shortcut keys is used to close a tab on a browser:
The correct answer is Ctrl+W because it is the standard keyboard shortcut across virtually all modern web browsers to shut down the actively selected tab.
- Step 1 (Tab Management): Pressing Ctrl+W tells the browser container to terminate the individual tab in focus without closing the entire multi-tab window application framework.
- Step 2 (Cross-App Consistency): This shortcut functions uniformly across Google Chrome, Mozilla Firefox, Microsoft Edge, and Apple Safari profiles.
- Incorrect Options:
- Ctrl+X is incorrect because it executes a Cut action, moving selected text or assets to the system clipboard.
- Alt+F4 is incorrect because it targets the entire application, shutting down the browser program and all of its open tabs simultaneously.
- Shift+F4 is incorrect because it is an unrelated function key variant lacking tab-management properties.
Which of the following shortcut keys is used to close a tab on a browser:Read More »
Venus indicated the direction of:
The correct answer is (C) East because when Venus serves as the Morning Star, it rises low on the horizon shortly before dawn, serving as a directional beacon for East.
The Morning Star: Because Venus orbits closer to the Sun than Earth, it is always seen in the same general region of the sky as the Sun. During its 263-day morning phase, it appears in the eastern sky before sunrise, outshining all other celestial bodies except the Moon.
Celestial Navigation: For ancient travelers, sailors, and nomadic tribes who lacked magnetic compasses, tracking the pre-dawn appearance of this brilliantly reflective planet served as a vital natural indicator to identify the eastern cardinal direction.
Incorrect Options:
(A) North is incorrect because tracking the North direction at night relies on tracking stars like Polaris (the North Star) or utilizing constellations like the Big Dipper rather than inner planets.
(B) South is incorrect because planets do not sit stationary at the Southern celestial pole, which requires tracking specific configurations like the Southern Cross constellation in the Southern Hemisphere.
(D) West is incorrect because although Venus does indicate the West when it acts as the Evening Star right after sunset, general knowledge curriculum questions traditionally focus on its role as the eastern Morning Star.
Liaqat Ali Khan was assassinated in Rawalpindi on _
The correct answer is 16 Oct 1951 because that is the exact tragic date Pakistan's first Prime Minister was assassinated during a public gathering.
- Step 1 (Historical Incident): On October 16, 1951, Nawabzada Liaquat Ali Khan was addressing a public meeting of the Muslim League at Company Bagh (now renamed Liaquat Bagh) in Rawalpindi.
- Step 2 (National Impact): He was fatally shot by an assassin named Saad Akbar Babrak. His final words, 'May God protect Pakistan,' remain deeply etched in the nation's political history.
- Incorrect Options:
- 17 Nov 1951, 17 Sep 1951, and 17 Aug 1951 are incorrect calendar variations that do not match the historical record of this event.
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Liaqat Ali Khan was assassinated in Rawalpindi on _Read More »
Which city is built on 118 islands:
• Venice is called the City of Canals and is built on 118 islands
• Rome is known as the Eternal City
• Paris is called the City of Light
• Istanbul lies on two continents (Asia & Europe)
• Tokyo is the most populous metropolitan city
• Mecca is the holiest city of Islam
• Karachi is the largest city of Pakistan by population
• Islamabad is the planned capital of Pakistan.
Some celestial bodies which do not have their own heat and light are known as:
Satellites, both natural and artificial, revolve around larger celestial bodies, most commonly planets, due to gravitational forces.
Some celestial bodies which do not have their own heat and light are known as:Read More »