Computer Science
Multiple Choice
Questions
(MCQs) – Sets 34
with Detailed Explanations
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SET 34 – Computer Science MCQs
✅ No repetition from Sets 1–33
✅ 10 completely new questions
✅ Each explanation is 50+ words
Level: Class 9–10 / Beginners
1. What is robotics?
A. Software testing
B. Internet browsing
C. Design and use of robots
D. Data storage
✅ Correct Answer: C
Explanation:
Robotics is a field of computer science and engineering that deals with designing, building, and operating robots. Robots can perform tasks automatically or semi-automatically. Robotics is used in manufacturing, healthcare, space exploration, and hazardous environments to improve efficiency and safety.
2. What is a robot?
A. Human worker
B. Computer program
C. Machine that performs tasks automatically
D. Network device
✅ Correct Answer: C
Explanation:
A robot is a machine designed to carry out tasks automatically or with minimal human input. Robots are controlled by computer programs and sensors. They are used in factories, medical surgeries, and space missions where precision and reliability are required.
3. What is an actuator?
A. Input device
B. Sensor
C. Component that causes movement
D. Power supply
✅ Correct Answer: C
Explanation:
An actuator is a component in a robot that creates movement. It converts energy into motion, such as motors that rotate wheels or robotic arms. Actuators allow robots to interact physically with their environment by performing actions like lifting or turning.
4. What is a sensor?
A. Output device
B. Storage device
C. Device that detects environmental changes
D. Network cable
✅ Correct Answer: C
Explanation:
A sensor is a device that detects changes in the environment, such as temperature, light, or motion. Sensors provide input data to robots and computers, allowing them to make decisions. Examples include cameras, proximity sensors, and temperature sensors.
5. What is autonomous robot?
A. Manually controlled robot
B. Broken robot
C. Robot that works without human control
D. Software tool
✅ Correct Answer: C
Explanation:
An autonomous robot operates independently without continuous human guidance. It uses sensors, algorithms, and decision-making systems to perform tasks. Examples include self-driving cars and robotic vacuum cleaners that navigate and work on their own.
6. What is humanoid robot?
A. Animal robot
B. Industrial robot
C. Robot with human-like appearance
D. Network robot
✅ Correct Answer: C
Explanation:
A humanoid robot is designed to resemble the human body in shape and movement. It may have a head, arms, and legs. Humanoid robots are used in research, customer service, and education to interact naturally with humans.
7. What is robotic programming?
A. Hardware repair
B. Network configuration
C. Writing code to control robot behavior
D. Data backup
✅ Correct Answer: C
Explanation:
Robotic programming involves writing instructions that control how a robot behaves and responds to its environment. It includes movement control, sensor input processing, and decision-making logic. Programming enables robots to perform complex tasks accurately.
8. What is industrial robot?
A. Toy robot
B. Household robot
C. Robot used in manufacturing
D. Medical robot
✅ Correct Answer: C
Explanation:
An industrial robot is used in factories for tasks like welding, painting, and assembling products. These robots increase productivity, precision, and safety. They can work continuously and perform repetitive tasks more efficiently than humans.
9. What is robot ethics?
A. Robot speed
B. Robot design
C. Moral rules for robot use
D. Robot repair
✅ Correct Answer: C
Explanation:
Robot ethics involves moral principles guiding the design and use of robots. It addresses issues like safety, privacy, and responsibility. Ethical considerations ensure robots are used in ways that benefit society without causing harm or misuse.
10. What is human-robot interaction (HRI)?
A. Robot repair
B. Robot storage
C. Study of interaction between humans and robots
D. Robot charging
✅ Correct Answer: C
Explanation:
Human-Robot Interaction focuses on how humans communicate and work with robots. It includes design, behavior, and communication methods. Effective HRI improves safety, usability, and acceptance of robots in daily life and workplaces.
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