Science & Technology General Knowledge Quiz

A fathom is a unit of depth measurement used primarily in nautical contexts to measure water depth (1 fathom = 6 feet). While it technically measures distance, in educational contexts it's specifically associated with depth. Sound uses decibels. Frequency uses Hertz. General distance uses meters or feet.

A light year is the distance light travels in one vacuum year, approximately 9.46 trillion kilometers. It is used to measure vast distances between stars and galaxies, not speeds of objects like aeroplanes or rockets.

Atomic clocks measure time based on the vibration frequency of atoms (usually cesium), providing extreme precision. They can measure intervals to within nanoseconds, far more accurate than quartz clocks which use crystal vibrations.

The precise conversion is 1 kilometer = 0.621371 miles. This is why 0.62 is the closest approximation among the options. Options A, B, and C are all incorrect conversions.

Kilohertz (kHz) is a unit of frequency equal to 1,000 hertz (cycles per second). It's commonly used to measure electromagnetic radio wave frequencies and audio signals. The other options refer to power (watts), voltage (volts), and resistance (ohms).

One horsepower is defined as approximately 746 watts (more precisely 745.7 watts). This unit was developed by James Watt to compare the output of steam engines to the power of draft horses.

The AIEE (American Institute of Electrical Engineers), which later merged to form the IEEE, was founded in 1884. This places it squarely in the 1880s decade. The IEEE was formed later in 1963 when AIEE merged with IRE.

In database terminology, a field holds a single type of data (like a column containing only names or only dates). A record contains multiple fields (a complete row), while files and reports are larger database structures.

In computing, OS stands for Operating System - the fundamental software that manages computer hardware and software resources. Windows, macOS, Linux, and Android are all examples of operating systems.

The first transatlantic radio transmission was successfully sent by Guglielmo Marconi in 1901, from Cornwall, England to Newfoundland, Canada. This achievement earned him the Nobel Prize in Physics.

The .MOV file extension is used for QuickTime multimedia files developed by Apple. These files contain video, audio, text, and effects, commonly used for movies and animations.

SPICE (Simulation Program with Integrated Circuit Emphasis) was developed at UC Berkeley and first released in 1973. It became the industry standard for electronic circuit simulation and is still widely used today.

Modern TVs use a small amount of standby power to keep the infrared receiver circuit active, allowing the remote control to turn the TV on. This is why TVs still draw minimal power even when off.

Modern TVs use a small amount of standby power to keep the infrared receiver circuit active, allowing the remote control to turn the TV on. This is why TVs still draw minimal power even when off.

Flash memory is a type of EEPROM (Electrically-Erasable Programmable Read-Only Memory) that allows blocks of memory to be erased and rewritten electrically. Unlike traditional EEPROM which erases byte-by-byte, flash erases in blocks, making it faster.

The choke in a fluorescent tube light is an inductor that creates a high voltage spike when current is interrupted, which ionizes the gas in the tube and starts the conduction. Once started, it limits the current to prevent damage.

The .MPG file extension is used for MPEG (Moving Picture Experts Group) video files. These are compressed digital video files commonly used for movies and animations, standardized by the MPEG group.

Argon (Ar) is the most abundant rare gas in Earth's atmosphere, constituting about 0.93% by volume. Helium and neon are present in trace amounts, while xenon is extremely rare.

Formic acid was historically produced by the destructive distillation of ant bodies. The name comes from 'formica', the Latin word for ant. While ants do secrete it for defense, the chemical name specifically honors its original method of isolation.

India has the world's largest monazite deposits, particularly along the coasts of Kerala, Tamil Nadu, and Odisha. Monazite is a primary source of thorium, a strategic nuclear fuel.