PPSC Past Papers & Solved MCQs

In computing, units of digital information are fundamentally based on powers of 2, not powers of 10, due to the binary nature of computer systems.

• The correct option is 1024. A kilobyte (KB) is precisely defined as 1024 bytes. This standard arises from the fact that 210 equals 1024, making it the most efficient and accurate representation for memory and storage capacity in binary systems.
• Distractors: "1000" is the decimal definition of "kilo" but is incorrect in the binary context of computing for KB. "1100" is an arbitrary number. "2048" is equivalent to 2 kilobytes (2 x 1024 bytes), not 1 kilobyte.

The National Flag of Pakistan, a powerful symbol of the nation's identity and aspirations, was designed by Amiruddin Kidwai. His design was officially adopted on August 11, 1947, just three days before Pakistan gained independence. The flag features a dark green field, representing the Muslim majority, with a white vertical stripe on the hoist side, symbolizing the country's religious minorities. A white crescent moon and a five-pointed star in the center signify progress, light, and knowledge, embodying the nation's guiding principles.

• Liaquat Ali Khan was Pakistan's first Prime Minister, not the flag designer.
• Chaudhry Rahmat Ali is credited with coining the name "Pakistan," but not with designing the flag.
• Syed Ameer Ali was a prominent Muslim jurist and political leader, unrelated to the flag's design.

The Parliament of the United Kingdom operates as a bicameral legislature, comprising two distinct houses, each with specific roles in the nation's governance. Understanding their structure is key to comprehending British democracy.

• The House of Commons is correctly identified as the lower house. It is the principal legislative body, composed of democratically elected Members of Parliament (MPs) who represent constituencies. The Commons holds supreme legislative authority, controls government spending, and is where the Prime Minister and most government ministers sit.
• The House of Lords is the upper house, consisting mainly of appointed life peers and hereditary peers. Its primary role is to scrutinize and revise legislation, but it possesses less power than the Commons.
• The term "Senate" refers to the upper house in many other countries, such as the USA, but not in the UK's parliamentary system.

Thus, the House of Commons is the foundational elected chamber.

Prepositions are words that indicate relationships between other words, often showing direction, location, time, or manner. The choice of preposition is crucial for conveying the intended meaning accurately.

• The correct option is to. The preposition "to" indicates direction or purpose. In this context, "The cat ran to a new toy" implies movement towards the toy with the intention of reaching or interacting with it.
• Distractors: "Over" suggests running on top of or across something. "By" suggests running past or near something, implying proximity rather than direct movement towards. "With" suggests accompanying something or using something, which does not fit the action of running towards an object.

The pivotal historical event known as the Islamic Revolution, also frequently referred to as the Iranian Revolution, took place in Iran. This profound socio-political and religious upheaval occurred in 1979, leading to the overthrow of the Pahlavi dynasty, which was a pro-Western monarchy under Shah Mohammad Reza Pahlavi. The revolution culminated in the establishment of an Islamic republic under the leadership of Grand Ayatollah Ruhollah Khomeini, fundamentally transforming Iran's governance, society, and international relations.

• Iraq, Palestine, and Libya are all Muslim-majority nations, but they did not experience the specific historical event known as "the Islamic Revolution" in 1979. Each has its own distinct political history and revolutionary movements.

This question assesses familiarity with a well-known Urdu proverb, which encapsulates cultural wisdom and advice. Proverbial expressions are integral to language and often convey profound messages concisely.

• The correct completion of the proverb is "اوکھلی میں سر دیا تو موسلوں سے کیا ڈرنا؟" (Okhli mein sar diya toh mooslon se kya darna?). This translates to: "If you have put your head in the mortar, why fear the pestles?"
• The foundational meaning is that once you have committed to a challenging or risky endeavor, you should not be intimidated by the difficulties or consequences that inevitably follow. It advocates for courage and steadfastness in the face of adversity.
• Options "پاؤں" (foot) and "ہاتھ" (hand) are incorrect. Substituting them would create an incoherent and unrecognized proverb, lacking the established metaphorical significance.

Therefore, "سر" (head) is the only word that correctly completes this widely understood idiom.

This question assesses knowledge of prominent Urdu literary figures and their significant works. "Chand Ham Asr" (چند ہم عصر) is a notable collection in Urdu literature, comprising biographical sketches and essays.

• The correct option is مولوی عبد الحق (Maulvi Abdul Haq). He is widely recognized as the author of "Chand Ham Asr" and is famously known as "Baba-e-Urdu" (Father of Urdu) for his immense contributions to the development and promotion of the Urdu language.
• Distractors: رشید احمد صدیقی (Rashid Ahmad Siddiqui) was a renowned Urdu humorist and satirist. مرداد ممت اللہ (Mardad Mumtullah) is not a recognized author of this specific work. مولانا عبد المجید سالک (Maulana Abdul Majeed Salik) was a prominent journalist, poet, and writer, but not the author of "Chand Ham Asr."

The UN Charter is the foundational treaty of the United Nations, establishing its purposes, principles, and organizational structure. It was signed on June 26, 1945, in San Francisco, at the conclusion of the United Nations Conference on International Organization, and came into force on October 24, 1945. The Charter is composed of a Preamble and 111 Articles, divided into 19 Chapters.

• Options A (100), B (110), and D (112) are incorrect numerical values. The precise number of articles in this crucial international document is 111, making it the correct answer.

Understanding the structure of the UN Charter is fundamental to comprehending international law and global governance.

This question primarily tests subject-verb agreement and the correct use of passive voice in English grammar. Identifying the true subject of the sentence is crucial for selecting the appropriate verb form.

• The subject is "The series of lectures." Although "lectures" is plural, the head noun of the subject phrase is "series," which is singular. Therefore, the verb must agree with the singular "series."
• The sentence also requires a passive voice construction because "the series of lectures" is receiving the action of being delivered, rather than performing it.
• "has been" correctly uses the singular auxiliary verb "has" (agreeing with "series") and forms the passive voice with "been delivered."
• "has" (A) is incorrect as it's active voice and incomplete.
• "were" (B) and "have" (D) are plural auxiliary verbs, which incorrectly agree with the singular subject "series."

Thus, "has been" ensures both subject-verb agreement and correct passive voice.

This question assesses knowledge of classical Urdu poetry and the works of its most influential poets. "Iblees Ki Majlis-e-Shura" (The Council of Satan) is a profound philosophical poem.

• The correct option is علامہ اقبال (Allama Iqbal). He is the celebrated author of "Iblees Ki Majlis-e-Shura." This profound philosophical poem is a significant part of his collection "Bal-e-Jibril" and explores complex themes of modernity, human destiny, and the role of evil in the universe.
• Distractors: فراق گورکھپوری (Firaq Gorakhpuri) was a renowned Urdu poet known for his romantic ghazals. جوش ملیح آبادی (Josh Malihabadi) was a revolutionary poet, often called "Shair-e-Inqilab." مظہر الحق (Mazhar-ul-Haq) is not associated with this particular literary work.

Baseball is a bat-and-ball game played between two teams, each with a specific number of players on the field at one time. The standard rules of baseball dictate the composition of a team during play.

• A standard baseball team has 9 players on the field at any given time. These positions typically include a pitcher, catcher, first baseman, second baseman, third baseman, shortstop, and three outfielders (left, center, and right).
• Options A (7), B (8), and D (10) are incorrect. While some variations of baseball or softball might have different numbers of players, the traditional and most common form of baseball involves nine players actively participating on the field for each team.

This number is crucial for understanding the game's strategy and dynamics.

The term 'environment' broadly refers to the sum of all external conditions and influences affecting the life and development of an organism or ecosystem. It is a holistic concept, integrating various natural sciences.

• Geology is intrinsically related as it studies the Earth's solid features, including landforms, rocks, and soil, which form the physical foundation of many environments.
• The Atmosphere, the gaseous envelope surrounding Earth, is crucial for climate, weather patterns, and sustaining life, making it a fundamental environmental component.
• Hydrology, the study of water's movement, distribution, and quality, is directly linked to the environment through oceans, rivers, lakes, and groundwater, all vital for ecosystems.

Since the environment encompasses the lithosphere (geology), atmosphere, and hydrosphere (hydrology), along with the biosphere, all these disciplines are interconnected and essential for understanding environmental systems. Therefore, 'All of these' is the correct and comprehensive answer.

The ozone layer, located in the Earth's stratosphere, plays a critical role in absorbing harmful solar radiation before it reaches the planet's surface, thereby protecting all forms of life.

• The correct option is Ultraviolet. The ozone layer primarily absorbs the vast majority of the sun's harmful Ultraviolet (UV) radiation. Exposure to excessive UV radiation can lead to severe health issues like skin cancer, cataracts, and can also cause significant damage to ecosystems.
• Distractors: "Microwave" radiation is part of the electromagnetic spectrum but is not significantly absorbed by the ozone layer. "Infrared" radiation is largely responsible for heating the Earth, but the ozone layer's main protective function is not against it. "Sigma" radiation is not a standard term for a type of electromagnetic radiation.

The term "laughing gas" refers to a specific chemical compound known for its anesthetic and analgesic properties, often used in medical and dental procedures to reduce pain and anxiety. It can also induce a state of euphoria, hence its common name.

• The correct answer is Nitrous Oxide (N2O). This compound is a colorless, non-flammable gas that has been used for over a century in various medical applications.
• Option B, Sulfur Oxide (SOx), refers to a group of compounds, often pollutants, and is not laughing gas.
• Option C, Carbon Dioxide (CO2), is a common greenhouse gas essential for life but has no euphoric or anesthetic properties like laughing gas.
• Option D, "None," is incorrect because Nitrous Oxide is indeed the correct answer.

Understanding common chemical names is important in general knowledge.

The Nehru Report holds a pivotal place in India's struggle for independence, representing an early attempt by Indian leaders to draft a constitutional framework for self-governance.

• The report was presented in 1928 by a committee chaired by Motilal Nehru, a distinguished lawyer and prominent nationalist leader. This foundational document proposed dominion status for India within the British Empire, advocating for a federal system of government and fundamental rights, in response to the British challenge for Indians to create their own constitution.
• Jawaharlal Nehru, Motilal's son and India's future first Prime Minister, was a member of the committee but not its chairman or the primary presenter of the report.
• Mahatma Gandhi, while the spiritual leader of the independence movement, was not directly involved in drafting or presenting this specific constitutional proposal.

Therefore, Motilal Nehru is correctly identified as the individual who presented this landmark report.

This question tests knowledge of significant historical inventions and their timelines, specifically focusing on the invention of the telephone, which revolutionized global communication.

• The correct option is 1876. Alexander Graham Bell was granted the first U.S. patent for the telephone on March 7, 1876. This pivotal event marked the official invention of the telephone, ushering in a new era of instant long-distance communication.
• Distractors: "1856" and "1866" are too early; Bell was still conducting experiments and developing his concepts during these periods. "1888" is too late; by this time, the telephone was already in commercial use and undergoing further technological advancements and widespread adoption.

Pakistan's motorway network is a system of high-speed, controlled-access highways connecting major cities. Each motorway is designated with an 'M' followed by a number, indicating its specific route.

• The M-2 Motorway is a vital artery in Pakistan's transportation infrastructure, connecting the two major cities of Lahore and Islamabad. It was the first motorway to be completed in Pakistan, significantly reducing travel time between the provincial capital of Punjab and the federal capital.
• Option A, Lahore–Multan, is served by the M-3 Motorway.
• Option C, Multan–Sukkur, is part of the M-5 Motorway.
• Option D, Peshawar–Islamabad, is covered by the M-1 Motorway.

Knowing the routes of major motorways is essential for geographical and logistical understanding of the region.

The javelin throw is a demanding track and field event requiring a combination of strength, technique, and speed. Standardized rules, set by World Athletics, govern the dimensions of the throwing area to ensure fair competition.

• The minimum length of the runway for the javelin throw is precisely 30 meters. This foundational specification allows athletes sufficient space to generate the necessary speed and momentum before releasing the javelin, which is critical for achieving optimal throwing distances.
• The rules also stipulate a maximum runway length of 36.5 meters.
• Options B (35m) and C (32m) are incorrect because while they fall within the permissible range (30m-36.5m), they are not the specified minimum length.
• Option D (40m) is incorrect as it exceeds the maximum allowed runway length, making it non-compliant with official regulations.

Therefore, 30m is the accurate minimum length for the javelin throw runway.

An isthmus is precisely defined as a narrow strip of land that connects two larger landmasses while separating two bodies of water. A classic example is the Isthmus of Panama, connecting North and South America and separating the Atlantic and Pacific Oceans.

• A strait is the opposite: a narrow passage of water connecting two larger bodies of water.
• A bay is a broad inlet of the sea where the land curves inward.
• A weir is a low dam built across a river to alter its flow.

Therefore, "Isthmus" is the only term that accurately describes the geographical feature mentioned, highlighting a key concept in physical geography.

Antarctica is famously known as the “Land of Penguins” because it is home to a vast majority of the world's penguin population. Several species, including Emperor and Adélie penguins, thrive in its unique icy and remote environment, which provides ideal breeding and feeding grounds. This makes option B the accurate answer.

• Asia (A) is the largest continent with diverse wildlife, but not primarily associated with penguins.
• Europe (C) has no native penguin species.
• Africa (D) is home to the African penguin, but its population is relatively small compared to the vast numbers found in Antarctica.

The question asks about the surface on which figure skating is performed. The correct answer is Ice. Figure skating is an Olympic sport where athletes perform intricate spins, jumps, and choreographed movements while wearing skates with blades designed for gliding on a frozen surface. The very nature of the sport, including its name, directly implies its performance on ice.

• Grass is used for sports like football or golf.
• Futsal is a type of indoor soccer played on a hard court.
• While some practice rinks might use synthetic rink surfaces, competitive and professional figure skating is exclusively performed on natural ice.

Understanding the fundamental requirements of the sport clarifies the correct surface.

To find the total amount, we need to understand that Rs. 7885 represents 10% of the whole. If 10% of the total amount is Rs. 7885, then to find 100% (the total amount), we can multiply Rs. 7885 by 10. The calculation is straightforward: 7885 × 10 = 78850. Therefore, the total amount is Rs. 78850.

• Options like Rs 70050, Rs 59850, and Rs 55850 are incorrect calculations, likely resulting from misinterpreting the percentage or performing incorrect arithmetic operations.

This problem tests basic percentage calculation skills, which are fundamental in everyday financial literacy.

During the First Round Table Conference held in London (1930-1931), Sir Agha Khan III led the Muslim League delegation. He played a pivotal role in representing the interests and demands of the Muslim community in British India during these crucial constitutional discussions. His leadership was instrumental in advocating for separate electorates and other safeguards for Muslims. Therefore, option C is the correct answer.

• Tabin Khan (A) is not a recognized leader of the Muslim League delegation at this conference.
• Quaid-e-Azam Muhammad Ali Jinnah (B) was also a prominent participant but Sir Agha Khan led the Muslim League delegation.
• Allama Iqbal (D) was a significant figure and participant, but he did not lead the Muslim League delegation at the First Round Table Conference.

The question tests knowledge of future tense in English grammar. The phrase "next year" clearly indicates a future event. Therefore, the correct verb form is will go. This uses the simple future tense, formed with "will" + base form of the verb, to express a future action or intention.

• go is the simple present tense, used for habitual actions or general truths, not a specific future event.
• will going is grammatically incorrect; "will" must be followed by the base form of the verb (go), not the present participle.
• is going is present continuous, which can indicate a future plan, but "will go" is the most direct and grammatically sound simple future expression for this context. "Is going" alone implies present action.

The sentence "I know why people are making noise" is a complex sentence. A complex sentence is characterized by having one independent clause and at least one dependent clause. In this sentence, "I know" is the independent clause, which can stand alone as a complete thought. The phrase "why people are making noise" is a dependent noun clause that functions as the direct object of the verb "know." It cannot stand alone as a complete sentence.

• A simple sentence has only one independent clause.
• A compound sentence has two or more independent clauses.
• A compound-complex sentence has two or more independent clauses and at least one dependent clause.

Understanding clause structure is crucial for identifying sentence types.