GK: Class 12 General Q&A · Page 40
3,658 free answers on GK (General) for Class 12 students, across CBSE, ICSE and State boards.
Question & Answer
Questions
- GeneralClass 12All
If 10 Be Added to Four Times
This appears to be the beginning of an algebraic word problem, likely something like "If 10 be added to four times a certain number, the result is..." Such problems test your ability to translate verbal statements into mathematical equations and then solve for unknown values. The phrase "four times a certain number" translates to 4x (where x represents the unknown number), and "10 be added to" means you add 10 to this expression, giving you 4x + 10. The complete problem would typically includ
- GeneralClass 12All
CNG Full Form
CNG stands for Compressed Natural Gas, a cleaner-burning alternative fuel consisting primarily of methane that's compressed to less than 1% of its volume at standard atmospheric pressure, making it practical for storage and use in vehicles. CNG is stored at high pressure (typically 200-250 bar or 3,000-3,600 psi) in specially designed cylindrical or spherical tanks, reducing its volume to fit in vehicle fuel tanks while maintaining enough energy content for practical driving ranges. As a vehi
- GeneralClass 12All
Where Do Kiwis Come From
Kiwis—referring to the flightless bird—are endemic to New Zealand, meaning they are found naturally nowhere else in the world, making them a unique symbol of New Zealand's biodiversity and national identity. These nocturnal, chicken-sized birds evolved in New Zealand's isolated ecosystem over millions of years in the absence of mammalian predators, developing unusual characteristics including hair-like feathers, vestigial wings, strong legs for running, and whisker-like feathers a
- GeneralClass 12All
LPG Full Form
LPG stands for Liquefied Petroleum Gas, a flammable mixture of hydrocarbon gases—primarily propane and butane—used as fuel for cooking, heating, and vehicles, stored and transported in liquid form under moderate pressure in steel cylinders or tanks. At normal atmospheric pressure and temperature, these gases exist in gaseous state, but when subjected to moderate pressure (typically 2-8 atmospheres) or slight cooling, they liquefy, reducing their volume by approximately 250 times,
- GeneralClass 12All
CPU Full Form
CPU stands for Central Processing Unit, often called the "brain" of a computer, which is the primary component responsible for executing instructions from programs and performing calculations that enable all computer operations. The CPU interprets and processes instructions from software, performs arithmetic and logical operations, manages data flow between different computer components, and controls the sequence of operations throughout the system. Modern CPUs are complex integrated circuits
- GeneralClass 12All
Sunrise Time
Sunrise time varies significantly based on your geographical location (latitude and longitude), the date (time of year), and your time zone, making it impossible to provide a single universal answer without specifying these parameters. In general, sunrise occurs when the upper edge of the sun appears above the horizon in the morning, with timing determined by Earth's rotation and its orbital position around the sun. For locations in India, sunrise typically ranges from approximately 5:00 AM t
- GeneralClass 12All
Earth's Atmosphere Layers
Earth's atmosphere is divided into five distinct layers based on temperature variations with altitude: the troposphere, stratosphere, mesosphere, thermosphere, and exosphere. The troposphere is the lowest layer, extending from Earth's surface to approximately 8-15 kilometers (varying by latitude and season), where all weather phenomena occur and temperature decreases with altitude at about 6.5°C per kilometer. This layer contains roughly 75% of the atmosphere's mass and nearly all water v
- GeneralClass 12All
Distinguish
To distinguish means to recognize, identify, or perceive the differences between two or more things, concepts, people, or ideas based on their distinctive characteristics, features, or qualities. The term is commonly used in academic contexts when asking students to explain how two similar concepts differ from each other—for instance, "distinguish between acids and bases" or "distinguish between weather and climate." Successfully distinguishing requires understanding the unique attribut
- GeneralClass 12All
Rhombus
A rhombus is a quadrilateral (four-sided polygon) where all four sides have equal length, making it a special type of parallelogram. Key properties of a rhombus include: opposite sides are parallel, opposite angles are equal, diagonals bisect each other at right angles (90 degrees), diagonals bisect the opposite angles, and the sum of adjacent angles equals 180 degrees. While a square is a special type of rhombus where all angles are 90 degrees, a rhombus generally has angles that are not rig
- GeneralClass 12All
AI Full Form
AI stands for Artificial Intelligence, a branch of computer science focused on creating machines and systems capable of performing tasks that typically require human intelligence, such as learning, reasoning, problem-solving, perception, understanding natural language, and decision-making. AI encompasses various approaches including machine learning (where systems learn from data without explicit programming), deep learning (using neural networks inspired by the human brain), natural language
- GeneralClass 12All
MLA Full Form
MLA stands for Member of Legislative Assembly, an elected representative in the legislative assembly (Vidhan Sabha) of an Indian state or union territory. MLAs are elected through direct elections by the people of their respective constituencies to represent them in the state legislature, where they participate in lawmaking, debate government policies, approve budgets, and hold the state government accountable. Each state is divided into assembly constituencies, and the number of MLAs in a st
- GeneralClass 12All
1 Billion in Crores
One billion equals 100 crores in the Indian numbering system. To understand this conversion, it helps to recognize that the international numbering system (used in most English-speaking countries) structures large numbers differently than the Indian system: one million = 10 lakhs, one billion = 1,000 million = 100 crores, and one trillion = 100,000 crores or 1 lakh crores. This conversion is essential when reading international financial reports, global economic data, or news from internation
- GeneralClass 12All
UNICEF Full Form
UNICEF stands for United Nations International Children's Emergency Fund, though it was later renamed the United Nations Children's Fund while retaining the familiar acronym. Established by the United Nations in 1946 initially to provide emergency food and healthcare to children in countries devastated by World War II, UNICEF has evolved into a permanent UN agency dedicated to providing humanitarian and developmental assistance to children and mothers in developing countries worldwide. Headqu
- GeneralClass 12All
IMF Full Form
IMF stands for International Monetary Fund, an international financial institution established in 1944 at the Bretton Woods Conference with 190 member countries as of 2024, headquartered in Washington, D.C. The IMF's primary purposes include promoting international monetary cooperation, facilitating international trade, promoting high employment and sustainable economic growth, reducing poverty around the world, and providing temporary financial assistance to countries experiencing balance of
- GeneralClass 12All
AMU Controller
The Controller of Examinations at Aligarh Muslim University (AMU) is a key administrative officer responsible for overseeing all examination-related activities at this prestigious central university. The Controller's office manages the conduct of examinations across various faculties and courses, including scheduling exams, preparing question papers securely, distributing materials to examination centers, appointing invigilators and examiners, collecting answer scripts, coordinating evaluatio
- GeneralClass 12All
One Million in Lakhs
One million equals 10 lakhs in the Indian numbering system. This conversion is essential for understanding international financial reports, global statistics, and news from foreign sources that typically express large numbers in millions rather than lakhs. The mathematical relationship is straightforward: 1 million = 1,000,000 = 10,00,000 (in Indian notation) = 10 lakhs. Similarly, 2 million = 20 lakhs, 5 million = 50 lakhs, 10 million = 1 crore, and so on. Understanding this conversi
- GeneralClass 12All
SCERT
SCERT stands for State Council of Educational Research and Training, which are autonomous organizations established in various states across India to improve school education quality by developing curricula, textbooks, teacher training programs, and educational research within each state's specific context. Every Indian state and union territory typically has its own SCERT, functioning under the state government's education department while maintaining academic independence. These institution
- GeneralClass 12All
1 Million
One million equals 10 lakhs in the Indian numbering system, represented numerically as 1,000,000 or 10,00,000 in Indian notation. Understanding this conversion is essential when reading international content, financial reports, or global statistics that typically use the million-billion scale rather than the lakh-crore system prevalent in India. One million represents a thousand thousands, and it's the first major milestone in the international numbering system beyond thousands. To vi
- GeneralClass 12All
Atomic Mass Unit
An atomic mass unit (amu), also called a unified atomic mass unit (u) or dalton (Da), is a standard unit of mass used to express atomic and molecular masses, defined as one-twelfth (1/12) of the mass of a carbon-12 atom, approximately equal to 1.66054 × 10⁻²⁷ kilograms. This unit provides a convenient scale for expressing the extremely small masses of atoms and molecules—for instance, a hydrogen atom has a mass of approximately 1 amu, an oxygen atom about 16 amu, and a carbon
- GeneralClass 12All
National Language of India
India does not have a single national language—this is a common misconception. Instead, the Constitution of India recognizes Hindi in the Devanagari script as the official language of the Union Government, while also granting official status to English for official purposes. Article 343 of the Constitution deals with the official language, while the Eighth Schedule lists 22 scheduled languages including Hindi, Bengali, Telugu, Marathi, Tamil, Urdu, Gujarati, Malayalam, Kannada, Odia, Pu