Punjab Public Service Commission PPSC Latest Past Papers Of All Jobs Read And Download The Book In Pdf. Today Ppsc Completed Solved Paper. Ppsc Latest Past Papers.
The Atanasoff-Berry Computer (ABC) is widely recognized as one of the earliest electronic digital computing devices. While its initial purpose was to solve systems of linear equations, its architectural innovations, such as binary arithmetic and regenerative memory, laid crucial groundwork for the development of modern computers. It was not a specific-purpose computer in the sense of being limited to a single, unchangeable task like a dedicated calculator. Instead, its design principles contributed significantly to the evolution of machines capable of performing a variety of tasks through programming, making it a precursor to general-purpose computers. Distractors like "Specific purpose computer" are incorrect as ABC's influence extended beyond a singular, fixed application.
Alexander Graham Bell is widely credited with inventing the telephone and securing the first U.S. patent for it in 1876. His invention revolutionized communication, allowing voices to be transmitted over long distances and fundamentally changing how people interacted globally.
(A) Nikola Tesla is incorrect; he was known for his contributions to alternating current electricity and radio technology.
(B) Thomas Edison is incorrect; he was a prolific inventor known for the light bulb, phonograph, and motion picture camera.
(C) Alexander Graham Bell is correct as he invented the telephone.
(D) Albert Einstein is incorrect; he was a theoretical physicist known for his theories of relativity.
The Format Painter in MS Office is the correct tool for copying and pasting character and paragraph formats. It allows users to quickly replicate formatting attributes—like font style, size, color, bolding, italics, paragraph alignment, and line spacing—from one piece of text to another. This feature is invaluable for maintaining a consistent visual style throughout a document. Paste Special (B) is used for pasting content with specific data types or formats, not for copying existing formatting styles. A Text Box (C) is a container for text, not a formatting application tool. Therefore, Format Painter is the precise and most efficient option for this task.
Asia is the largest continent in the world by both land area and population. It covers approximately 30% of Earth's total land area and is home to over 60% of the world's human population. Its vast size encompasses diverse climates, cultures, and geographical features.
(A) Asia is correct because it is the largest continent in terms of both landmass and population.
(B) Africa is incorrect; it is the second-largest continent.
(C) Europe is incorrect; it is significantly smaller than Asia and Africa.
(D) North America is incorrect; it is the third-largest continent by land area.
The correct answer is $A$1. In spreadsheet applications like Microsoft Excel, an absolute cell reference is used to keep a cell's location constant when a formula is copied or filled to other cells. This is achieved by placing a dollar sign ($) before both the column letter and the row number.
A1 is a relative cell reference, meaning it changes based on the relative position of the cell where the formula is copied.
IA1 is not a standard or valid cell reference format in most spreadsheet programs.
The correct command to view the entire document before printing is Print Preview. This essential feature allows users to see an exact representation of how their document will appear on paper, including all formatting, layout, and page breaks. It enables a thorough review to catch any errors or undesirable layouts, ensuring the final printed output matches expectations. In contrast, "Print Design" is not a standard command for this purpose, and "Print All" simply sends the document directly to the printer without offering a prior visual inspection. Print Preview is crucial for quality control and avoiding wasted paper.
Albert Einstein is widely regarded as the 'Father of Modern Physics' due to his revolutionary theories of relativity (special and general relativity). These theories fundamentally altered our understanding of space, time, gravity, and the universe, laying the groundwork for much of 20th-century physics and beyond.
(A) Isaac Newton is incorrect; he is considered the 'Father of Classical Physics' for his laws of motion and universal gravitation.
(B) Albert Einstein is correct for his pivotal role in developing modern physics.
(C) Galileo Galilei is incorrect; he is often called the 'Father of Observational Astronomy' and 'Father of Modern Science'.
(D) Nikola Tesla is incorrect; he was an electrical engineer and inventor known for his work on AC electricity.
To find the share of the third partner, first simplify the given ratio 4/3:7/6:11/12. The least common multiple (LCM) of the denominators (3, 6, 12) is 12. Multiplying each fraction by 12 gives us the simplified ratio: (4/3)*12 : (7/6)*12 : (11/12)*12 = 16:14:11.
The sum of the ratio parts is 16 + 14 + 11 = 41.
The third partner's share is (11/41) of the total profit.
Share = (11/41) * 12300 = 11 * 300 = 3300.
The other options are incorrect because they do not result from the correct simplification of the ratio and subsequent calculation of the third partner's share.
The correct answer is (C) Saudi Arabia. Saudi Arabia is the largest producer of electricity in the Islamic world, primarily due to its vast oil and natural gas reserves which fuel its power plants. The country has a high demand for electricity for industrial use, desalination, and air conditioning, leading to significant investment in its power generation infrastructure.
(A) Kazakhstan, (B) Uzbekistan, and (D) Tajikistan are significant energy producers in Central Asia, but their overall electricity generation capacity and consumption are considerably lower than that of Saudi Arabia.
Saudi Arabia's extensive fossil fuel resources and economic development have positioned it as the leading electricity producer among Islamic nations.
The question asks for the capital city of Canada. Ottawa is the correct answer because it is the official capital of Canada, serving as the seat of the federal government. It was chosen by Queen Victoria in 1857 due to its strategic location and as a compromise between the English-speaking and French-speaking regions.
Toronto is the largest city in Canada and the capital of the province of Ontario, but not the national capital.
Vancouver is a major city in British Columbia on the west coast, known for its port and natural beauty.
Montreal is the largest city in Quebec and a significant cultural and economic center, but not the capital of Canada.
To determine the number of smaller containers that can be filled, we must calculate the volume of both the large tank and the small containers, ensuring consistent units.
Large Tank: Diameter = 2.4 m = 240 cm, so Radius (R) = 120 cm. Height (H) = 6.4 m = 640 cm. Volume = π * R² * H = π * (120)² * 640 = 9216000π cm³.
Small Container: Radius (r) = 8.2 cm. Height (h) = 28 cm. Volume = π * r² * h = π * (8.2)² * 28 = 1882.72π cm³.
Number of Containers: Divide the large tank's volume by the small container's volume: (9216000π) / (1882.72π) ≈ 4895.19.
Since only complete containers can be filled, the answer is 4895. The 'm³' unit in the option is a mislabeling, as the question asks for a count.
The correct answer is (B) Gutter. In typography and page layout, a gutter refers to the vertical separation or space between columns of text or between facing pages in a bound publication. It's crucial for readability and aesthetics, ensuring text from one column doesn't visually merge with another.
(A) Index is an alphabetical list of names, subjects, etc., with references to the places where they occur.
(C) Margin refers to the blank space between the edge of the page and the main body of the text. While related to spacing, it's distinct from the internal separation between columns.
(D) None of these is incorrect because 'Gutter' precisely defines the vertical separation.
The question asks for the official currency of Japan. Yen (JPY) is the correct answer, as it is the official currency of Japan and one of the world's major reserve currencies, widely used in international finance and trade.
The Won is the official currency of South Korea and North Korea.
The Yuan (specifically Renminbi) is the official currency of the People's Republic of China.
The Ringgit is the official currency of Malaysia.
Each country typically has its own distinct currency, making it a fundamental aspect of its economic identity.
A computer program that translates one program instruction at a time into machine language is known as an Interpreter. Interpreters execute code line by line, translating and running each instruction sequentially. This allows for immediate execution and easier debugging.
Compiler: Translates the entire source code into an executable machine code file before any execution takes place.
Simulator: Mimics the behavior of a system or device, often for testing or training purposes, rather than translating program instructions for direct execution.
CPU (Central Processing Unit): This is the hardware component that executes machine language instructions, but it does not perform the translation from high-level code itself.
The correct answer is (A) Store deleted file. The Recycle Bin (or Trash on macOS) is a temporary storage area for files and folders that have been deleted from a computer's hard drive. This allows users to recover accidentally deleted items before they are permanently removed from the system.
(B) Store corrupt file is incorrect; the Recycle Bin does not specifically store corrupt files.
(C) Store temporary file is incorrect; temporary files are typically stored in specific system directories and are not managed by the Recycle Bin.
(D) Store document file is incorrect; document files are stored in various user-defined locations, not primarily in the Recycle Bin unless they have been deleted.
The question identifies the founder of the Mongol Empire. Genghis Khan (born Temüjin) is the correct answer. He was the founder and first Great Khan of the Mongol Empire, which became the largest contiguous empire in history after his death. He unified many of the nomadic tribes of Northeast Asia and launched the Mongol invasions that conquered vast areas of Eurasia in the early 13th century.
Kublai Khan was a grandson of Genghis Khan and founded the Yuan Dynasty in China.
Timur (Tamerlane) was a Central Asian conqueror who founded the Timurid Empire in the late 14th century, much later than the Mongol Empire.
Attila the Hun was the leader of the Huns, active in the 5th century, long before the Mongol Empire's formation.
To calculate 80% of 700, you need to understand that 'percentage' means 'per hundred'. Therefore, 80% can be written as the fraction 80/100 or the decimal 0.80.
The calculation is: (80/100) * 700.
This simplifies to 0.80 * 700.
Performing the multiplication gives 560.
The other options are incorrect because they represent different numerical outcomes that would arise from miscalculations, such as using an incorrect percentage value or performing erroneous arithmetic operations.
The correct answer is (C) Auto Save. Microsoft Word, along with many other modern applications, includes an 'Auto Save' feature that automatically saves changes to a document at regular, predefined intervals. This functionality helps prevent data loss in case of unexpected program crashes or power outages.
(A) Auto Update refers to software updating itself, not saving a document.
(B) Auto Recover is a related but distinct feature that helps recover unsaved changes from a document after a crash, often utilizing files created by the Auto Save process. While linked, 'Auto Save' is the direct action of saving at intervals.
(D) None of these is incorrect as 'Auto Save' is a standard feature.
The other options are incorrect as they would result from errors in the division or multiplication steps, or from incorrectly setting up the percentage calculation.
The correct answer is (C) Both A & B. In MS Excel, a standard formula often comprises both labels (cell references like A1, B2) and numeric values. For instance, a formula like =SUM(A1:A5, 10) includes cell labels (A1:A5) and a numeric value (10). Therefore, a comprehensive formula can contain both elements.
(A) Label is partially correct but incomplete, as formulas frequently incorporate numbers.
(B) Numeric value is also partially correct but incomplete, as cell references are fundamental.
(D) None of these is incorrect because option (C) accurately describes the components.
The first Islamic Caliphate, known as the Rashidun Caliphate, began in 632 AD following the death of Prophet Muhammad. This period was characterized by the rule of the first four 'Rightly Guided' Caliphs: Abu Bakr, Umar, Uthman, and Ali.
The Rashidun Caliphate concluded in 661 AD.
This year marks the assassination of the fourth Caliph, Ali ibn Abi Talib.
His death led to the end of the Rashidun era and the subsequent establishment of the Umayyad Caliphate, which transitioned the leadership into a dynastic rule.
The other options provided are incorrect dates for the conclusion of the Rashidun Caliphate, which is a pivotal period in early Islamic history.
The correct answer is (C) F7. In Microsoft Word, the F7 key is the standard shortcut used to open the Spelling & Grammar dialog box, allowing users to check and correct errors in their document. This function key is widely recognized across various Microsoft Office applications for this specific purpose.
(A) F3 is typically used for searching for text or graphics.
(B) F5 is commonly used for the 'Go To' command or to refresh a web page in browsers.
(D) F9 is generally used to update selected fields in a document.
The correct answer is Ctrl+Apostrophe ('). This keyboard shortcut in spreadsheet applications like Microsoft Excel is specifically used to copy the formula from the cell directly above the active cell into the active cell, displaying the formula itself rather than its calculated result. This is particularly useful for quickly replicating or inspecting formulas.
Ctrl+C is used to copy the selected content (value or formula) to the clipboard, not specifically from the cell above.
Ctrl+: (Ctrl+colon) is used to insert the current time.
Ctrl+. (Ctrl+period) is used to select the corners of the selected range.
The correct answer is (C) Poland. World War II officially began on September 1, 1939, when Nazi Germany invaded Poland. This aggressive act prompted Great Britain and France to declare war on Germany, marking the start of the global conflict.
(A) Russia (Soviet Union) was invaded by Germany in June 1941, much later in the war.
(B) Spain remained neutral during World War II, having just concluded its own civil war.
(D) UK was never successfully invaded by Germany, although it faced intense aerial bombardment during the Battle of Britain.
In MS Word, superscript and subscript are known as Font Format. These are specific modifications that alter the appearance and position of characters relative to the baseline, making them smaller and slightly raised (superscript) or lowered (subscript). They fall under the broader category of font formatting options that control how text looks.
Font Style typically refers to attributes like bold, italic, or underline.
Font Family refers to the typeface itself, such as Arial or Times New Roman.
Font Effect is a related term, but 'Font Format' is a more encompassing category for these types of character alterations within MS Word's interface.