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1. WEEK 1
ANNIE ROSE S. DULANG
CSS10
AUGUST 30, 2023

2. OHS

6. Look around you and
identify things which you
think might hurt you or
your classmates?

7. A hazard is a situation in the
workplace that has the potential to
harm the health and safety of people
or to damage plant and equipment.

8. The situation could involve a task,
chemical or equipment used.

9. Hazard management is a continuous
process that can be used to improve
the health and safety of all
workplaces.

10. 4 hazards in a
Computer Laboratory

21. ACTIVITY
•In a group of 3. You are given 10 minutes to
go around the school and identify at least 1
hazard.
•Perform the Think Safe Steps and fill out the
chart below.

23. Safety Precautions when working:
1. Always ground or discharge yourself before touching any part
of the computer.
2. Do not work alone so that there is someone who can take care
of you in case of accident or emergency.
3. Be careful with the tools that may cause short circuit.

24. Safety Precautions when working:
4. Always full the cable connector on the handle and not hold on the
cable itself.
5. Use only rubber shoes when standing on the ground or in a
concrete floor.
6. Make sure that the pins are properly aligned
when connecting a cable connector.
7. Always power off and unplug the computer before working on it.

25. Safety Precautions when working:
8. Take away any liquid such as mineral water or soft drinks near
your working area or near computers.
9. Personal protective equipment is correctly used in accordance
with organization procedures and practice.
10.Hazard/risks in the workplace and their corresponding
indicators are identified to minimize or eliminate risk to
co‐workers, workplace, and environment.

26. Safety Precautions when working:
11. Take necessary precautions to protect the component of the
computer from damaged caused by Electrostatic Discharge (ESD).
12. Hold the components by edges and do not touch the IC’s.
13. Read and follow instructions on the manual carefully.
14.Do not use excessive force if things do not quite slip into
place.

27. Fire Safety Guidelines
• Know the location of fire extinguishers, how to use them and
which to use for electrical fires and for combustible fires.
• Find an escape route in case a fire gets out of control.
• Know how to contact emergency services quickly
• Keep the workspace clean. Keep most solvents in a separate
area.

28. What is lightning?
How does lightning strikes
affect electronic devices?

29. • Static electricity is easily generated by friction on carpets, tile
flooring, clothing, hair, fabric, and etc.
• The friction of moving air alone will charge suspended particles
and cause the build-up of static electrical charges on people
and objects in the environment.

30. Electro- Static Discharge (ESD) Tools
•Grounded antistatic work mats used with
antistatic wrist straps provide the most
basic means for the controlled discharge
of electrostatic electricity.

31. Examples of ESD Tools:
•Anti-static wrist strap
– Used to prevent ESD
damage to computer
equipment.

32. Examples of ESD Tools:
• Anti-static mat – Used to
stand on or place
• hardware on to prevent
static electricity from

33. Proper Use of ESD
Tools

34. Proper Use of Antistatic Wrist Strap

35. 1. Connect the cable to the metal
chassis of the computer.
2. Wrap the strap around your
wrist.

36. 3. The connection will keep your body at the same
voltage (potential) as the computer.
4. Attach the wire on the same side of the equipment
as the arm wearing the antistatic wrist strap to keep
the wire out of the way while you are working.

37. CAUTION: Never wear an
antistatic wrist strap if you are
repairing a monitor or CRT.

38. Proper Use of Antistatic Mat

39. • Lay the computer on the mat.
• Connect the computer to the mat with the cable.
• Connect the mat to a reliable electrical ground with
its cable.
• Now, you and the computer are at ground potential.
• Connect the cable to the metal chassis of the
computer.

40. Personal Safety While Working
with PCs Computer

41. • Hold the expansion card, integrated circuit and RAM
in the edges.
• Prevent to bring with you any liquid form of drinks
while working.
• Remove jewelries when working inside any
computer-related equipment.

42. • Make sure the plug and cable are already removed
in main socket/source of electricity.
• Wear shoes that is made of rubber to because it is a
bad conductor of electricity. It is also preventing the
current to pass through in the body.

43. ACTIVITY
Draw an example of anti-static
device and explain its function

44. Name some hand tools that are
used in CSS.

45. What is Lean?
Lean is defined as a set of management practices to
improve efficiency and effectiveness by eliminating
waste. The core principle of lean is to reduce and
eliminate non-value adding activities and waste.

46. 5S quality tool
The 5S quality tool is derived from five Japanese
terms beginning with the letter "S" used to create a
workplace suited for visual control and lean
production. The pillars of 5S are simple to learn
and important to implement:

47. Seiri (Sort )
To separate needed tools, parts, and
instructions from unneeded materials
and to remove the unneeded ones.

48. Seiton (Set in Order)
To neatly arrange and identify
parts and tools for ease of use.

49. Seiso (Shine)
To conduct a cleanup campaign.

50. Seiketsu (Standardize )
To conduct seiri, seiton, and
seiso daily to maintain a
workplace in perfect condition.

51. Shitsuke (Sustain )
To form the habit of always
following the first four S’s.

54. LEARN 5S PROGRAM BENEFITS
• Improved safety
• Higher equipment availability
• Lower defect rates
• Reduced costs
• Increased production agility and flexibility

55. LEARN 5S PROGRAM BENEFITS
• Improved employee morale
• Better asset utilization
• Enhanced enterprise image to customers,
suppliers, employees, and management

56. Task 1: Role Playing
Directions: Given below the different
scenario, make a story plot on how to
deal in that kind of situation inside the
computer laboratory.

57. Task 1: Role Playing
1. Not wearing a proper personal protective equipment.
2. The tools and equipment used is not placed in its proper storage.
3. Your classmate always place his bottle water open near the computer.
4. The wirings inside the computer laboratory was placed in the floor
untangled.
5. The class was playing inside the computer laboratory when the teacher
goes out for a minute only.

58. QUIZ
Directions: MULTIPLE CHOICE.
Write the LETTER of the correct answer
on the space provided.

59. QUIZ
____1. The student was asked to disassemble the computer. What
should the student do first?
a. Always power off and unplug the computer before working on it.
b. Be careful with tools that may cause short circuit.
c. Do not work alone.
d. Take away any liquid near your working area.

60. QUIZ
____2. To maintain sanitation and prevent accidents in a
workplace, what can we do?
a. Always wear PPE.
b. Clean the area before and after working.
c. Follow the OHS.
d. Neither of the three.

61. QUIZ
____3. To finish the work safety and early, what OHSP should be
done?
a. Always power off and unplug the computer before working on it.
b. Be careful with tools that may cause short circuit.
a. Do not work alone.
b. All of the above

62. QUIZ
____4. To avoid short circuit, working on electronic devices you need
to .
a. Always power off and unplug the computer before working on it.
b. Be careful with tools that may cause short circuit.
c. Do not work alone.
d. Take away any liquid near your working area.

63. QUIZ
____5. What is the first step in handling the computer internal
parts?
a. Clean the working are before the activity.
b. Connect immediately the connectors and drives.
c. Discharge the current in your body.
d. Wash your hand with soap first.

64. QUIZ
____6. What do we refer to as legislation, policies, procedures and
activities that aim to protect the health and safety and welfare of the
people at the work place?
a. Occupational Health Safety and Procedure
b. Occupational Health Standards and Procedure
c. Occupational Health Satisfaction and Procedure
d. Occupational Health Stationary and Procedure

65. QUIZ
____7. Everyone was surprised when their classmate placed his palm
on the IC parts and touched it.
She should’ve?
a. Always power off and unplug the computer before working on it.
b. Be careful with the tools that may cause short circuit.
c. Hold the components on the edges.
d. Use brush, compressed air or blower.

66. QUIZ
____8. What 5S implementation shows to arrange all necessary items so that they
can be easily selected for use?
a. set in order b. sort c. standardize d. sustain
____9. What 5S implementation shows to remove unnecessary items and dispose
of them properly?
a. set in order b. sort c. standardize d. sustain

67. QUIZ
___10. What is the importance of Occupational Health and
Safety Procedures?
a. Avoid the disobedience of the employees.
b. Ensure the protection in health and safety of the employees.
c. Follow the mandated rules and regulation of the government.
d. Show the different activities in the workplace.

68. QUIZ
Directions: Identify what hazard is being illustrated in the situation below.
________________________ 1. Laser printer toner
________________________ 2. Open CRT monitor
________________________ 3. Obstructed electrical cables
________________________ 4. Slippery computer laboratory floor
__________________________ 5. Hot components, or sharp edges of
computer devices.

69. ANSWER: MULTIPLE CHOICE
1. A
2. B
3. D
4. A
5. C
6. C
7. B
8. D
9. C
10. C
11. A
12. C
13. A
14. B
15. B

70. ANSWER: IDENTIFICATION
1. Chemical Hazard
2. Electric Shock Hazard
3. Physical Hazard
4. Physical Hazard
5. Mechanical Hazard