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Test: Electronics - SSC CGL MCQ


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15 Questions MCQ Test General Awareness for SSC CGL - Test: Electronics

Test: Electronics for SSC CGL 2024 is part of General Awareness for SSC CGL preparation. The Test: Electronics questions and answers have been prepared according to the SSC CGL exam syllabus.The Test: Electronics MCQs are made for SSC CGL 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Electronics below.
Solutions of Test: Electronics questions in English are available as part of our General Awareness for SSC CGL for SSC CGL & Test: Electronics solutions in Hindi for General Awareness for SSC CGL course. Download more important topics, notes, lectures and mock test series for SSC CGL Exam by signing up for free. Attempt Test: Electronics | 15 questions in 30 minutes | Mock test for SSC CGL preparation | Free important questions MCQ to study General Awareness for SSC CGL for SSC CGL Exam | Download free PDF with solutions
Test: Electronics - Question 1

What type of semiconductor has holes as the majority charge carriers and electrons as the minority charge carriers?

Detailed Solution for Test: Electronics - Question 1

In a p-Type semiconductor, holes are the majority charge carriers, while electrons act as the minority charge carriers. This characteristic distinguishes p-Type semiconductors from n-Type semiconductors. The introduction of impurities into a semiconductor material alters its conductivity properties, leading to the formation of p-Type and n-Type semiconductors.

Test: Electronics - Question 2

What is the primary function of a Zener diode when operated in reverse current mode?

Detailed Solution for Test: Electronics - Question 2

When a Zener diode is operated in reverse current mode, its main function is to act as a voltage regulator. Unlike other diodes, the Zener diode is specifically designed to maintain a steady voltage across its terminals even when the current varies. This unique characteristic makes it a crucial component in various electronic circuits where stable voltage levels are essential.

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Test: Electronics - Question 3

What is the primary function of a digital circuit?

Detailed Solution for Test: Electronics - Question 3

A digital circuit is designed to respond to discrete values of input voltage and produce corresponding discrete output voltage levels. This characteristic enables digital circuits to process information in the form of binary digits (0s and 1s) representing OFF and ON states, which are fundamental to digital electronics. By utilizing these discrete values, digital circuits can perform logical operations and execute various functions in electronic devices.

Test: Electronics - Question 4

What is the significance of a microprocessor in electronic devices?

Detailed Solution for Test: Electronics - Question 4

A microprocessor plays a crucial role in electronic devices as the central processing unit (CPU). It is responsible for executing instructions, performing calculations, managing data flow, and controlling the overall operation of the device. By processing information at high speeds, microprocessors enable the functionality of electronic devices, ranging from smartphones and computers to household appliances and automotive systems.

Test: Electronics - Question 5

How is the universe commonly defined in the provided text?

Detailed Solution for Test: Electronics - Question 5

The universe, as commonly defined, encompasses all matter and energy, including planets, stars, galaxies, and everything that exists. This definition emphasizes the vast expanse and diversity of entities that make up the cosmos, reflecting the grandeur and complexity of our known existence.

Test: Electronics - Question 6

Which celestial bodies are typically included in the universe as mentioned?

Detailed Solution for Test: Electronics - Question 6

The universe, includes planets, stars, galaxies, and all matter and energy. This inclusive definition underscores the comprehensive nature of the universe, encompassing everything from the smallest particles to the largest cosmic structures, highlighting the immense scale and variety present in the cosmos.

Test: Electronics - Question 7

What is the source of the sun's energy?

Detailed Solution for Test: Electronics - Question 7

The sun's energy source is nuclear fusion, a process where hydrogen atoms fuse together to form helium, releasing immense amounts of energy in the form of heat and light. This process powers the sun and is responsible for the warmth and light that sustains life on Earth.

Test: Electronics - Question 8

Which planet is known as the Red Planet?

Detailed Solution for Test: Electronics - Question 8

Mars is known as the Red Planet due to its reddish appearance, caused by iron oxide (rust) present on its surface. This distinctive color comes from the rocks and dust on Mars, giving it a reddish hue when viewed from space or through telescopes.

Test: Electronics - Question 9

What is the composition of the Earth's core primarily made of?

Detailed Solution for Test: Electronics - Question 9

The Earth's core is primarily composed of iron. This iron-dominated core is divided into the outer core, which is molten and has a high temperature, and the solid inner core. The presence of iron in the Earth's core plays a crucial role in generating the planet's magnetic field through complex interactions involving the molten outer core and the solid inner core.

Test: Electronics - Question 10

What is the temperature range of the Earth's outer core?

Detailed Solution for Test: Electronics - Question 10

The temperature of the Earth's outer core is approximately 4000°C. This high temperature is due to the intense heat generated by the radioactive decay of elements in the Earth's interior, combined with the immense pressure at the core. The molten outer core's high temperature and flow of metallic iron are responsible for creating the Earth's magnetic field.

Test: Electronics - Question 11

What is a black hole in space characterized by?

Detailed Solution for Test: Electronics - Question 11

A black hole in space is characterized by intense gravitational force so great that even light cannot escape its pull. This phenomenon occurs when a massive star collapses in on itself, leading to a gravitational field so strong that nothing, not even light, can escape from it.

Test: Electronics - Question 12

What triggers the birth of a star within a nebula?

Detailed Solution for Test: Electronics - Question 12

The birth of a star within a nebula is triggered by gravitational forces causing particles within the cloud of gas and dust to move toward the center. As these particles accumulate and move closer together, their kinetic energy is converted into heat, eventually leading to the formation of a star through the process of nuclear fusion.

Test: Electronics - Question 13

What type of diode is commonly used as indicator lights in electronic devices?

Detailed Solution for Test: Electronics - Question 13

LEDs, or Light Emitting Diodes, are widely utilized as indicator lights in electronic devices. These diodes are typically made from materials like GaAsP or GaP and emit light when an electric current passes through them. Their energy efficiency, compact size, and ability to produce various colors make them a popular choice for visual indicators in electronic systems.

Test: Electronics - Question 14

What forms the basic components of an integrated circuit (IC)?

Detailed Solution for Test: Electronics - Question 14

The basic components of an integrated circuit (IC) consist of transistors and diodes. These components are interconnected on a semiconductor substrate to form complex electronic circuits within a small chip. By integrating multiple transistors and diodes, ICs can perform various functions, such as amplification, signal processing, and logic operations, making them essential building blocks for modern electronic devices.

Test: Electronics - Question 15

What does the text define as the totality of existence?

Detailed Solution for Test: Electronics - Question 15

The text defines the totality of existence as comprising planets, stars, galaxies, and all matter and energy. This holistic perspective underscores the vastness and inclusivity of the universe, emphasizing that everything within it, from celestial bodies to fundamental forces, collectively forms the fabric of existence as we know it.

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