Science and Technology MCQs

Static General Knowledge

Science and Technology MCQs

Practice Science and Technology MCQs with answers and detailed explanations covering scientific inventions, technological advancements, space missions, information technology, biotechnology, artificial intelligence, discoveries, innovations and current developments frequently asked in SSC, Railway, Banking, UPSC, JKSSB, Police, Defence, Teaching and other competitive examinations.

466
Total Questions

Practice Questions

Page 5 of 24
Question #81
Which of these is a type of 'malware'?
A. Keyboard
B. Hard Disk
C. Trojan Horse
D. Monitor
Discuss
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Correct Answer: Option C

Explanation:
A Trojan Horse is a common type of malware disguised as useful software.
This question belongs to: Static General Knowledge Science and Technology
Question #82
What is the unit for electric current?
A. Ampere
B. Ohm
C. Volt
D. Watt
Discuss
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Correct Answer: Option A

Explanation:
Electric current is measured in Amperes.
This question belongs to: Static General Knowledge Science and Technology
Question #83
Which of these is a common 'Programming Language'?
A. Google
B. Microsoft Word
C. Python
D. Windows
Discuss
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Correct Answer: Option C

Explanation:
Python is a widely used high-level programming language.
This question belongs to: Static General Knowledge Science and Technology
Question #84
What is the purpose of a 'Backup'?
A. To make the computer faster
B. To access the internet
C. To improve visual quality
D. To store copies of data to prevent loss
Discuss
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Correct Answer: Option D

Explanation:
Backups serve as a protective copy of important files in case of system failure.
This question belongs to: Static General Knowledge Science and Technology
Question #85
Which of these is a 'Biometric' identification method?
A. Using a physical key
B. Writing a signature
C. Fingerprint scanning
D. Typing a password
Discuss
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Correct Answer: Option C

Explanation:
Biometrics identify individuals based on unique physical traits like fingerprints.
This question belongs to: Static General Knowledge Science and Technology
Question #86
What is 'Geothermal' energy?
A. Energy from Earth's internal heat
B. Energy from the sun
C. Energy from plant material
D. Energy from water currents
Discuss
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Correct Answer: Option A

Explanation:
Geothermal energy uses the heat stored within the Earth's crust.
This question belongs to: Static General Knowledge Science and Technology
Question #87
Which technology allows remote medical consultations?
A. Biotechnology
B. Telemedicine
C. Nanotechnology
D. Robotic surgery
Discuss
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Correct Answer: Option B

Explanation:
Telemedicine uses digital communication tools to connect patients with doctors remotely.
This question belongs to: Static General Knowledge Science and Technology
Question #88
What is a 'Server' in computing?
A. A portable USB device
B. A type of keyboard
C. A display for graphics
D. A computer that provides data to other computers
Discuss
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Correct Answer: Option D

Explanation:
A server is a central system that provides resources or services to other computers on a network.
This question belongs to: Static General Knowledge Science and Technology
Question #89
Which element is common to all organic compounds?
A. Carbon
B. Nitrogen
C. Oxygen
D. Iron
Discuss
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Correct Answer: Option A

Explanation:
Organic chemistry is primarily defined as the chemistry of carbon compounds.
This question belongs to: Static General Knowledge Science and Technology
Question #90
What is a 'Graphic User Interface' (GUI)?
A. A hardware cable
B. A way to increase Wi-Fi speed
C. A coding language
D. A way to use a computer with images and icons
Discuss
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Correct Answer: Option D

Explanation:
A GUI allows users to interact with electronic devices through visual icons and menus.
This question belongs to: Static General Knowledge Science and Technology
Question #91
Which of these is a renewable power resource?
A. Nuclear power
B. Coal
C. Natural gas
D. Solar energy
Discuss
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Correct Answer: Option D

Explanation:
Solar energy is harvested from the sun and is considered renewable.
This question belongs to: Static General Knowledge Science and Technology
Question #92
What is 'Phishing'?
A. A secure login method
B. A method used to trick users into revealing information
C. A way to download large files
D. A method to speed up a computer
Discuss
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Correct Answer: Option B

Explanation:
Phishing is a deceptive technique used by criminals to steal sensitive information.
This question belongs to: Static General Knowledge Science and Technology
Question #93
What does a 'Switch' do in a computer network?
A. Stores personal files
B. Acts as an operating system
C. Connects multiple devices on a network
D. Displays graphics
Discuss
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Correct Answer: Option C

Explanation:
A network switch connects multiple devices on a local area network (LAN).
This question belongs to: Static General Knowledge Science and Technology
Question #94
What is the primary function of an 'Internet Protocol' (IP)?
A. Managing computer power
B. Displaying high-quality video
C. Storing browser history
D. Addressing and routing data packets
Discuss
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Correct Answer: Option D

Explanation:
The IP address is a unique number that identifies a device on a network.
This question belongs to: Static General Knowledge Science and Technology
Question #95
Which of these is an example of an AI agent?
A. A paper book
B. A standard desktop monitor
C. A physical hammer
D. An automated chatbot
Discuss
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Correct Answer: Option D

Explanation:
AI agents are systems that perceive their environment and take actions to achieve goals.
This question belongs to: Static General Knowledge Science and Technology
Question #96
What is 'Encryption' used for in web browsing?
A. Storing browser history
B. Changing the page color
C. Making the web page load faster
D. Securing the connection (HTTPS)
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Correct Answer: Option D

Explanation:
HTTPS uses encryption (SSL/TLS) to ensure secure communication over the web.
This question belongs to: Static General Knowledge Science and Technology
Question #97
Which is the largest planet?
A. Earth
B. Jupiter
C. Saturn
D. Neptune
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Correct Answer: Option B

Explanation:
Jupiter is the most massive planet in our solar system.
This question belongs to: Static General Knowledge Science and Technology
Question #98
What is 'Nanotechnology' concerned with?
A. Massive bridge building
B. Structures at the molecular scale
C. Radio broadcasting
D. Deep sea exploration
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Correct Answer: Option B

Explanation:
Nanotechnology deals with manipulating matter on an atomic and molecular scale.
This question belongs to: Static General Knowledge Science and Technology
Question #99
What is a 'Motherboard'?
A. A gaming accessory
B. A portable USB device
C. A type of software
D. The main circuit board of a computer
Discuss
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Correct Answer: Option D

Explanation:
The motherboard holds and connects all the main components of a computer.
This question belongs to: Static General Knowledge Science and Technology
Question #100
Which gas do plants absorb from the atmosphere?
A. Hydrogen
B. Nitrogen
C. Oxygen
D. Carbon Dioxide
Discuss
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Correct Answer: Option D

Explanation:
Plants take in carbon dioxide during photosynthesis.
This question belongs to: Static General Knowledge Science and Technology

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