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Science, Technology and Computing Abbreviations
Practice abbreviations-full-forms with 20 free MCQ questions covering static-gk. Detailed explanations in English and Hindi, perfect for UPSC, SSC, and competitive exam preparation.
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Science, Technology and Computing Abbreviations20:00
abbreviations-full-forms — Answer Key & Explanations (20 Questions)
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Q1.What is the full form of LASER?
- A.Light Absorption by Stimulated Emission of Radiation
- B.Light Amplification by Spontaneous Emission of Rays
- C.Linear Amplification by Stimulated Energy Radiation
- D.Light Amplification by Stimulated Emission of Radiation✓ Correct Answer
Explanation: LASER stands for Light Amplification by Stimulated Emission of Radiation; the first working laser was built in 1960.
Q2.What is the full form of RADAR?
- A.Radio Direction and Reflection
- B.Radar Detection and Recording
- C.Radio Distance and Ranging
- D.Radio Detection and Ranging✓ Correct Answer
Explanation: RADAR uses radio waves to detect the position and speed of objects.
Q3.What is the full form of GPS?
- A.General Positioning System
- B.Global Pointing Service
- C.Geographic Planning System
- D.Global Positioning System✓ Correct Answer
Explanation: GPS is a satellite-based navigation system owned by the United States.
Q4.What is the full form of USB?
- A.Universal Storage Block
- B.United System Bus
- C.Universal Secure Backup
- D.Universal Serial Bus✓ Correct Answer
Explanation: USB is a standard for connecting peripherals and transferring data and power.
Q5.What is the full form of DNA?
- A.Dinucleic Acid
- B.Deoxyribonucleic Acid✓ Correct Answer
- C.Deoxyribose Nitrogen Acid
- D.Diribonucleic Acid
Explanation: DNA carries the genetic information of living organisms.
Q6.What is the full form of CPU?
- A.Central Programming Unit
- B.Central Processing Unit✓ Correct Answer
- C.Computer Processing Utility
- D.Control Panel Unit
Explanation: The CPU is the "brain" of a computer and executes instructions.
Q7.What is the full form of LED?
- A.Light Energy Device
- B.Light Emitting Diode✓ Correct Answer
- C.Low Energy Diode
- D.Linear Emission Device
Explanation: An LED is a semiconductor diode that emits light when current flows through it.
Q8.What is the full form of PDF, the file format developed by Adobe?
- A.Portable Document Format✓ Correct Answer
- B.Printable Document File
- C.Personal Data Format
- D.Portable Data File
Explanation: PDF preserves document layout across devices and was introduced by Adobe in 1993.
Q9.What is the full form of HTTP?
- A.HyperText Transfer Protocol✓ Correct Answer
- B.HyperText Transmission Process
- C.High Transfer Text Protocol
- D.HyperText Terminal Program
Explanation: HTTP is the protocol used to transfer web pages between servers and browsers.
Q10.What is the full form of SIM, as in a mobile phone SIM card?
- A.Secure Identification Memory
- B.Subscriber Information Method
- C.Subscriber Identity Module✓ Correct Answer
- D.Signal Identity Module
Explanation: A SIM card stores the subscriber's identity and authenticates them to the mobile network.
Q11.What is the full form of ROM in a computer?
- A.Random Operating Memory
- B.Read Only Memory✓ Correct Answer
- C.Read Output Module
- D.Rapid Online Memory
Explanation: ROM is non-volatile memory whose contents are retained when power is switched off.
Q12.What is the full form of BIOS?
- A.Binary Input Output Software
- B.Basic Internal Operating System
- C.Boot Input Output Service
- D.Basic Input Output System✓ Correct Answer
Explanation: BIOS is firmware that initialises hardware when a computer is switched on.
Q13.What is the full form of MRI, a medical imaging technique?
- A.Magnetic Resonance Imaging✓ Correct Answer
- B.Magnetic Radiation Imaging
- C.Medical Resonance Instrument
- D.Molecular Resonance Imaging
Explanation: MRI uses strong magnetic fields and radio waves to image internal organs.
Q14.What is the full form of LCD?
- A.Light Crystal Diode
- B.Liquid Crystal Display✓ Correct Answer
- C.Liquid Circuit Display
- D.Linear Colour Display
Explanation: LCDs use liquid crystals that modulate light to form images.
Q15.What is the full form of VPN?
- A.Virtual Public Node
- B.Verified Private Network
- C.Virtual Private Network✓ Correct Answer
- D.Variable Protocol Network
Explanation: A VPN creates an encrypted connection over a public network.
Q16.What is the full form of OCR?
- A.Optical Code Reader
- B.Online Character Registry
- C.Optical Character Recognition✓ Correct Answer
- D.Operational Character Reading
Explanation: OCR converts images of printed or handwritten text into machine-readable text.
Q17.What is the full form of SONAR, used to detect underwater objects?
- A.Sound Navigation and Ranging✓ Correct Answer
- B.Sound Navigation and Reflection
- C.Submarine Object Navigation and Ranging
- D.Sonic Navigation and Radar
Explanation: SONAR uses sound pulses to locate objects underwater; it is the acoustic counterpart of RADAR.
Q18.What is the full form of ASCII, the character encoding standard?
- A.American Standard Code for Internet Communication
- B.Automatic Standard Code for Information Interchange
- C.American Standard Code for Information Interchange✓ Correct Answer
- D.American Scientific Code for Information Interchange
Explanation: ASCII is a 7-bit encoding that represents 128 characters.
Q19.What is the full form of GSM used in mobile telephony?
- A.General Signal for Mobile Communication
- B.Global Satellite Mobile
- C.Global System for Mobile Communications✓ Correct Answer
- D.Global System for Mobile Connectivity
Explanation: GSM is the digital cellular standard used by most mobile networks worldwide.
Q20.What is the full form of CAPTCHA, used to tell humans from bots?
- A.Completely Automated Public Turing test to tell Computers and Humans Apart✓ Correct Answer
- B.Computer Automated Program To Check Humans And Robots
- C.Completely Automatic Password Test for Computers and Humans
- D.Computer Authenticated Public Test to Catch Hackers And Robots
Explanation: The term was coined in 2003 by Luis von Ahn and colleagues at Carnegie Mellon University.
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