Here is descriptive subjective pyq for Class 10 IT 402 Unit 4 (Maintain Healthy, Safe and Secure Working Environment), complete withanswers tailored to meet the CBSE marking scheme.
📝 Section 1: 2-Mark Short Answer Questions
Q1. What is an emergency in a workplace context? Give any two examples. (CBSE 2020)
Answer: A workplace emergency is any unforeseen or unplanned situation that threatens the safety of employees, disrupts regular operations, disrupts structural integrity, or causes physical/environmental damage.
Examples: Fire outbreaks and sudden earthquakes.
Q2. Define Ergonomics. Why is it important in an IT workplace? (CBSE 2022)
Answer: Ergonomics is the study of designing the workplace environment, tools, and equipment to fit the capabilities, natural movements, and comfort of the user’s body.
Importance: It ensures safe sitting angles, keyboard levels, and monitor placements to minimize physical strain and prevent chronic occupational health issues.
Q3. What is Repetitive Strain Injury (RSI)? Mention one common cause. (CBSE 2023)
Answer: Repetitive Strain Injury (RSI) refers to painful conditions affecting the muscles, nerves, and tendons caused by repetitive movements or prolonged awkward postures.
Cause: Typing continuously on a poorly positioned keyboard without resting the wrists.
Q4. Explain the ’20-20-20 rule’ used to reduce computer vision syndrome. (CBSE 2024)
Answer: The 20-20-20 rule helps alleviate eye strain during long computer sessions. It dictates that every 20 minutes, a user should take a break to look at an object located at least 20 feet away for a duration of 20 seconds.
Q5. Differentiate between an ‘Unsafe Act’ and an ‘Unsafe Condition’. (CBSE Sample Paper 2022)
Answer: An Unsafe Act refers to hazardous human behavior that violates safety guidelines, such as operating electrical tools with wet hands. An Unsafe Condition is a physical hazard in the environment itself, such as an exposed live wire or a slick, wet floor.
📝 Section 2: 4-Mark Long Answer Questions
Q6. What primary steps should an employee follow immediately upon encountering a serious fire accident in a computer lab? (CBSE 2023)
Answer:
Alert Others: Shout out loud to raise the alarm immediately and activate the manual fire alarm call point nearby.
Isolate the Hazard: Switch off the main power breaker if it is safely accessible to eliminate the electrical threat feeding the fire.
Evacuate Safely: Leave the room calmly using designated emergency stairways and fire exits without stopping to collect personal belongings.
Gather at Assembly Point: Proceed directly to the pre-designated open assembly zone outside the building so that safety marshals can perform a final headcount.
Q7. Explain any four essential guidelines to maintain excellent physical health and posture while working at a computer desk. (CBSE Sample Paper 2023)
Answer:
Monitor Level: Position the monitor screen about an arm’s length away, with the top of the display screen resting at or slightly below your straight eye level.
Back Support: Use an adjustable ergonomic chair that fits the inward curvature of the spine, providing proper lumbar (lower back) reinforcement.
Arm Placement: Rest the arms naturally close to the body with the elbows forming a comfortable 90-degree to 100-degree angle while typing.
Foot Placement: Keep both feet planted completely flat on the stable floor surface or utilize a dedicated angled footrest rather than dangling them.
Q8. Discuss the role of an organization in ensuring adequate workplace security and physical safety for its employees. (CBSE 2021)
Answer:
Access Control: Implementing strict identification checks, digital smart-card access, and surveillance CCTV cameras to keep out unauthorized strangers.
Safety Infrastructure: Placing clearly labeled, unblocked emergency exit signs and keeping functional first-aid boxes across every single floor.
Fire Equipment Maintenance: Equipping the facility with active smoke sensors, water sprinkler systems, and verified Carbon Dioxide (CO2) fire extinguishers.
Training & Mock Drills: Organizing mandatory safety training modules and conducting recurring fire evacuation drills to build smooth escape routes.