Health Concerns Related to Technology MCQs | 25 Practice Questions with Answers | CBSE Class 12 Informatics Practices (IP)
Class 12 · Informatics Practices
Health Concerns Related to Technology MCQs (25 Questions)
Practice these multiple-choice questions to strengthen your understanding of Health Concerns Related to Technology and Healthy Computing Practices. Click Show Answer to reveal the correct answer and explanation.
Q1. Prolonged use of computers or digital devices may lead to:
A. Eye strain
B. Neck pain
C. Repetitive Strain Injury (RSI)
D. All of these
Show Answer
Answer: D. All of these.
Explanation: Long hours of computer use can affect the eyes, muscles, joints, and overall health.
Q2. What is Computer Vision Syndrome (CVS)?
A. A computer virus
B. A group of eye and vision-related problems caused by prolonged screen use
C. A networking issue
D. A software error
Show Answer
Answer: B.
Explanation: Computer Vision Syndrome includes eye strain, blurred vision, dry eyes, and headaches caused by extended screen exposure.
Q3. Which of the following is a common symptom of Computer Vision Syndrome?
A. Blurred vision
B. Dry eyes
C. Headache
D. All of these
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Answer: D. All of these.
Explanation: CVS commonly causes eye discomfort, blurred vision, headaches, and dry eyes.
Q4. What does RSI stand for?
A. Rapid System Installation
B. Repetitive Strain Injury
C. Remote Security Interface
D. Repeated Software Issue
Show Answer
Answer: B. Repetitive Strain Injury
Explanation: RSI is caused by repetitive movements such as continuous typing or mouse usage.
Q5. Which activity may increase the risk of RSI?
A. Continuous typing without breaks
B. Using the mouse for long periods
C. Poor hand posture
D. All of these
Show Answer
Answer: D. All of these.
Explanation: Repetitive movements and poor posture contribute to Repetitive Strain Injury.
Q6. Which of the following helps reduce eye strain?
A. Taking regular breaks
B. Adjusting screen brightness
C. Following the 20-20-20 rule
D. All of these
Show Answer
Answer: D. All of these.
Explanation: Regular breaks, proper lighting, and the 20-20-20 rule help reduce eye fatigue.
Q7. What is the 20-20-20 rule?
A. Every 20 minutes, look at an object 20 feet away for 20 seconds.
B. Work for 20 hours continuously.
C. Sit 20 cm away from the screen.
D. Blink 20 times every second.
Show Answer
Answer: A.
Explanation: The 20-20-20 rule relaxes eye muscles and reduces eye strain.
Q8. Ergonomics is the study of:
A. Designing workplaces and equipment for comfort, safety, and efficiency
B. Computer programming
C. Network security
D. Database management
Show Answer
Answer: A.
Explanation: Ergonomics focuses on creating a comfortable and healthy work environment.
Q9. Which is the correct sitting posture while using a computer?
A. Back straight and supported
B. Feet flat on the floor
C. Screen at eye level
D. All of these
Show Answer
Answer: D. All of these.
Explanation: Proper posture reduces strain on the back, neck, shoulders, and eyes.
Q10. Which health problem is commonly associated with poor sitting posture?
A. Neck pain
B. Back pain
C. Shoulder pain
D. All of these
Show Answer
Answer: D. All of these.
Explanation: Poor posture places unnecessary stress on muscles and joints.
Q11. Which habit supports healthy computer use?
A. Taking regular short breaks
B. Stretching during long sessions
C. Drinking enough water
D. All of these
Show Answer
Answer: D. All of these.
Explanation: Healthy habits improve physical comfort and reduce fatigue during computer use.
Q12. Excessive screen time may negatively affect:
A. Sleep quality
B. Mental well-being
C. Concentration
D. All of these
Show Answer
Answer: D. All of these.
Explanation: Long screen exposure may disturb sleep, reduce concentration, and affect mental health.
Q13. Which statement about ergonomics is TRUE?
A. It improves comfort while working.
B. It reduces the risk of injuries.
C. It increases productivity.
D. All of these.
Show Answer
Answer: D. All of these.
Explanation: Proper ergonomic practices benefit both health and work efficiency.
Q14. Which statement about healthy technology use is TRUE?
A. Maintain proper posture.
B. Take regular breaks.
C. Limit unnecessary screen time.
D. All of these.
Show Answer
Answer: D. All of these.
Explanation: Healthy technology habits reduce physical and mental health risks.
Q15. Which statement best summarizes health concerns related to technology?
A. Long screen time may affect physical health.
B. Good ergonomic practices reduce health risks.
C. Healthy digital habits improve overall well-being.
D. All of these.
Show Answer
Answer: D. All of these.
Explanation: Balanced use of technology combined with healthy habits helps prevent technology-related health problems.
Q16. A student studies on a laptop continuously for four hours without taking a break and later experiences headache and blurred vision. Which health issue is most likely?
A. Computer Vision Syndrome (CVS)
B. Malware Infection
C. Data Theft
D. Network Failure
Show Answer
Answer: A. Computer Vision Syndrome (CVS)
Explanation: Long periods of screen use without breaks can cause eye strain, blurred vision, dry eyes, and headaches, which are symptoms of Computer Vision Syndrome.
Q17. A person experiences pain in the wrist after typing continuously for several hours every day. Which condition is this?
A. Cyber Bullying
B. Repetitive Strain Injury (RSI)
C. Computer Virus
D. Phishing
Show Answer
Answer: B. Repetitive Strain Injury (RSI)
Explanation: Repetitive movements such as typing or prolonged mouse use can lead to RSI, causing pain in the wrists, hands, and fingers.
Q18. Which of the following is the best ergonomic practice while working on a computer?
A. Keep the monitor at eye level.
B. Sit with your back supported.
C. Keep your feet flat on the floor.
D. All of these.
Show Answer
Answer: D. All of these.
Explanation: Proper ergonomic posture helps reduce strain on the neck, back, shoulders, and eyes.
Q19. Which action is recommended after every 20 minutes of screen use?
A. Close the laptop completely.
B. Look at an object about 20 feet away for 20 seconds.
C. Increase the screen brightness.
D. Restart the computer.
Show Answer
Answer: B.
Explanation: The 20-20-20 rule helps relax the eye muscles and reduce digital eye strain.
Q20. Which statement correctly differentiates Computer Vision Syndrome (CVS) and Repetitive Strain Injury (RSI)?
A. CVS mainly affects the eyes.
B. RSI mainly affects muscles, tendons, and joints.
C. Both are caused by prolonged computer use.
D. All of these.
Show Answer
Answer: D. All of these.
Explanation: CVS is related to eye problems, while RSI affects muscles and joints. Both can result from excessive computer usage.
Q21. Which of the following helps maintain good mental well-being while using technology?
A. Limiting unnecessary screen time.
B. Taking regular breaks.
C. Balancing online and offline activities.
D. All of these.
Show Answer
Answer: D. All of these.
Explanation: Balanced technology use supports both physical and mental health.
Q22. Which statement about healthy technology use is TRUE?
A. Regular stretching exercises reduce muscle fatigue.
B. Proper lighting reduces eye strain.
C. Maintaining correct posture helps prevent neck and back pain.
D. All of these.
Show Answer
Answer: D. All of these.
Explanation: Healthy work habits and an ergonomic workspace reduce technology-related health problems.
Q23. Which of the following is NOT a recommended healthy computing practice?
A. Working continuously for many hours without breaks.
B. Using an ergonomic chair.
C. Adjusting monitor brightness.
D. Following the 20-20-20 rule.
Show Answer
Answer: A. Working continuously for many hours without breaks.
Explanation: Continuous computer use without breaks increases the risk of eye strain, fatigue, and musculoskeletal problems.
Q24. Which statement correctly matches the concept with its purpose?
A. Ergonomics → Comfortable and safe workplace design.
B. Computer Vision Syndrome → Eye problems caused by prolonged screen use.
C. Repetitive Strain Injury → Injury caused by repeated movements.
D. All of these.
Show Answer
Answer: D. All of these.
Explanation: Each concept has been correctly matched with its purpose and health impact.
Q25. Which statement best summarizes healthy use of technology?
A. Maintain proper posture while using computers.
B. Take regular breaks and reduce unnecessary screen time.
C. Follow ergonomic practices to prevent health problems.
D. All of these.
Show Answer
Answer: D. All of these.
Explanation: Healthy technology habits, proper ergonomics, and regular breaks help prevent physical and mental health issues associated with prolonged digital device use.
Answer Key
| Q.No. | Answer | Q.No. | Answer | Q.No. | Answer |
|---|---|---|---|---|---|
| 1 | D | 11 | D | 21 | D |
| 2 | B | 12 | D | 22 | D |
| 3 | D | 13 | D | 23 | A |
| 4 | B | 14 | D | 24 | D |
| 5 | D | 15 | D | 25 | D |
| 6 | D | 16 | A | ||
| 7 | A | 17 | B | ||
| 8 | A | 18 | D | ||
| 9 | D | 19 | B | ||
| 10 | D | 20 | D |
Practice Tips
- Common Health Problems from Excessive Technology Use:
- Computer Vision Syndrome (CVS) → Eye strain, dry eyes, blurred vision, headaches.
- Repetitive Strain Injury (RSI) → Pain in the wrist, fingers, shoulders, or arms due to repetitive movements.
- Neck & Back Pain → Caused by poor posture.
- Mental Fatigue → Due to excessive screen time and lack of breaks.
- Follow the 20-20-20 Rule:
- Every 20 minutes,
- Look at an object 20 feet away,
- For at least 20 seconds.
- Maintain Good Ergonomics:
- Keep the monitor at eye level.
- Sit with your back straight and supported.
- Keep feet flat on the floor.
- Position the keyboard and mouse comfortably.
- Use an ergonomic chair if possible.
- Healthy Computing Habits:
- Take short breaks every 30–60 minutes.
- Blink frequently to prevent dry eyes.
- Adjust screen brightness according to room lighting.
- Stay hydrated.
- Perform simple stretching exercises during long work sessions.
- Real-life Examples:
- Blurred vision after studying for hours → Computer Vision Syndrome
- Wrist pain after prolonged typing → Repetitive Strain Injury
- Neck pain from looking down at a laptop → Poor Ergonomics
- Using an adjustable chair and monitor stand → Good Ergonomic Practice
- CBSE Tip: Competency-based questions often describe daily computer usage scenarios. Identify the symptom (eyes, muscles, posture, or mental well-being) and then choose the appropriate health concern or preventive practice.