The question asks for the correct expansion of "PIN" in the context of a PIN Code. This is a general knowledge question related to common abbreviations used in India, specifically concerning the postal system.
Correct Option: B) Postal Index Number
The term "PIN Code" stands for "Postal Index Number Code". It is a six-digit numerical code used by India Post to identify specific geographical locations for efficient mail sorting and delivery across India. Each digit in the PIN Code has a specific meaning, indicating the postal zone, sub-zone, sorting district, and delivery post office.
The question asks for the correct full form of the abbreviation "CBI". This is a factual recall question related to common abbreviations of Indian government agencies.
Correct Option: B) Central Bureau of Investigation
The question asks for the correct expansion of the acronym "FIR". This is a common term used in the Indian legal and police system, and general awareness of such terms is important for competitive exams.
Correct Option: C) First Information Report
This question tests basic knowledge of computer terminology, specifically the full form of common acronyms. The task is to identify the correct expansion of "CPU".
Correct Option: B) Central Processing Unit
The CPU (Central Processing Unit) is often referred to as the "brain" of the computer. It is responsible for executing instructions, performing arithmetic operations, logical operations, and controlling the overall flow of data and instructions within the computer system.
The question asks for the correct expansion of the acronym "LED". This is a common acronym in electronics and general knowledge. We need to identify the full form that accurately represents the device.
Correct Option: A) Light Emitting Diode
LED stands for Light Emitting Diode. It is a two-lead semiconductor light source. When a suitable voltage is applied to the leads, electrons recombine with electron holes within the device, releasing energy in the form of photons. This effect is called electroluminescence, and the color of the light (corresponding to the energy of the photon) is determined by the energy band gap of the semiconductor.
This question asks for the full form of the acronym "USB". This is a common computer hardware term, and knowing its full form is part of general computer knowledge often tested in competitive exams.
Correct Option: B) Universal Serial Bus