Occupational health and safety aims to protect workers from workplace hazards through standards set by the Department of Labor and Employment. It seeks to promote workers' physical, mental, and social well-being. Hazards include safety issues, biological agents, chemicals, physical factors, ergonomic risks, and psychological stressors. Personal protective equipment, safety practices, and proper signage help prevent harm and dangers in the workplace.

2. OCCUPATIONAL HEALTH AND SAFETY
- is primarily concerned with the
prevention of all hazards related with
work.
- a set of standards set by the Department
of Labor and Employment that aims to
protect workers from workplace-related
dangers/hazards.
- should aim at the promotion and
maintenance of the highest degree of
physical, mental, and social well-being of
workers in all occupation.

3. OCCUPATIONAL HEALTH AND SAFETY
HAZARDS – anything that
may impose harm or
danger.

4. OCCUPATIONAL HEALTH AND SAFETY
OCCUPATIONAL HEALTH –
pertains to the wellness of an individual
in reference with an activity or job.

5. OCCUPATIONAL HEALTH AND SAFETY
PERSONAL
PROTECTIVE
EQUIPMENT
(PPE) – equipment
used to protect
one’s body from
hazards or danger
in the workplace.

6. OCCUPATIONAL HEALTH AND SAFETY
RISKS – measure of the
possibility of a specific harmful
effect in given circumstances.

7. OCCUPATIONAL HEALTH AND SAFETY
SAFETY
PRACTICES – set of
rules or procedures
intended for a safe
execution of a certain
activity or job in a
laboratory or workplace.

8. TYPES OF HAZARDS
SAFETY HAZARDS – these
are caused by inadequate and
insufficient machine guards,
unsafe workplace conditions,
and unsafe work practices.
Examples: slipping/tripping
hazards, inappropriate
machine guarding,
equipment malfunctions or
breakdowns.

9. TYPES OF HAZARDS
BIOLOGICAL HAZARDS –
these are caused by organisms
such as viruses, bacteria, fungi,
and parasites.
Examples: bacteria, viruses,
insects, plants, birds,
animals, and humans, etc.,

10. TYPES OF HAZARDS
CHEMICAL HAZARDS –
these include solid, liquid,
vapor or gaseous chemicals,
dust, fume or mist.
- present when you are exposed to
any chemical preparation in the
workplace.
- may result when an employee
inhales or absorbs harmful
chemicals through his mouth, nose
or via skin contact.

11. TYPES OF HAZARDS
PHYSICAL HAZARDS
– these are caused by
noise, vibration, energy,
weather, electricity,
radiation, magnetic field,
and extreme pressure.

12. TYPES OF HAZARDS
ERGONOMIC HAZARDS –
these are caused by
anatomical, physiological and
psychological demands on the
worker, such as repetitive and
forceful movements, extreme
temperatures, awkward
postures arising from improper
work methods and improperly
designed workstations, tools
and equipment.

13. TYPES OF HAZARDS
PSYCHOLOGICAL
HAZARDS – these
are those that cause
stress to a worker
and may affect his
general well-being.

14. TYPES OF HAZARDS
MECHANICAL and/or
ELECTRICAL HAZARDS –
these include electricity,
machinery, equipment,
pressure vessels, dangerous
goods, fork lifts, cranes and
hoists.

15. SAFETY SIGNS/COLORS AT THE
WORKPLACE
RED
• Danger
• Prohibition
• Alarm

16. SAFETY SIGNS/COLORS AT THE
WORKPLACE
YELLOW/ AMBER
• WARNING

17. SAFETY SIGNS/COLORS AT THE
WORKPLACE
BLUE
• Mandatory

18. SAFETY SIGNS/COLORS AT THE
WORKPLACE
GREEN
• Emergency escape
• First aid
• No danger

19. BASIC ELECTRONIC
TOOLS
TWO GENERAL CLASSIFICATIONS:
- HAND TOOL
- MACHINE TOOL

20. BASIC ELECTRONIC TOOLS
CLASSIFICATION OF TOOLS ACCORDING
TO THEIR USES:
- Gripping Tools
- Cutting Tools
- Driving Tools
- Boring Tools
- Testing and Measuring Tools
- Soldering and Desoldering Tools

21. GRIPPING TOOLS
PLIER
S-hand tools for gripping
objects by using leverage.
-require different jaw
configurations to grip, turn,
pull, or crimp a variety of
things.
TWEEZER
S
BENCH VISE VISE GRIP
-used for picking up small
electronic components that
are not easily handled with
human hands.
-a holding device attached
to a workbench.
-has two jaws to hold work
piece firmly in place.
-locking pliers, mole grips
(mole wrench)
-pliers that can be locked
into position, using an
over-center action.

22. CUTTING TOOLS
SIDE
CUTTER-used for cutting wires.
WIRE
STRIPPER
FILES
-used for removing the
insulation of electrical
wires.
-composed of ridges/teeth
and can cut metals by
shaping it.

23. DRIVING TOOLS
SCREWDRIVE
R-insert and tighten, or to
loosen and remove screws.
WRENCH
-used to provide a strong
grip and mechanical
advantage in turning
objects.
-usually use for nuts and
bolts.

24. BORING/DRILLING TOOLS
DRILL
-a tool with a rotating drill bit
used for drilling holes in various
materials.
-commonly used in
woodworking and metalworking.
DRILL CHUCK AND
KEY-used for changing drill
bits.

25. SOLDERING AND DESOLDERING
TOOLS
SOLDERING IRON
-hand tool used for
soldering
-supplies heat to melt the
solder so that it can flow
into the joint between two
work pieces or metal.
DESOLDERING
PUMP-used in removing solder
from the printed circuit
board.

26. MEASURING/TESTING TOOLS
MULTIMETER/MULTITESTE
R
-an electronic measuring
instrument that combines
several functions in one
unit.
-includes ammeter,
voltmeter, and ohmmeter.
ANALOG MULTIMETERS –
referred to as “volt-ohm-
meters” (VOM)
DIGITAL MULTIMETERS –
referred to as “digital-
multi-meters” (DMM)

27. BASIC ELECTRICITY
What is electricity?
-formed through the
movements of
electrons
-invisible force that
provides light, heat
sound and motion.

28. BASIC ELECTRICITY
ATOM – smallest piece of an element containing the
same properties.
-building block of matter.
COMPONENTS OF AN
ATOM:Nucleus – the center portion of an
atom containing the protons and
neutrons.
Protons – positively charged
atomic particles.
Neutrons – uncharged atomic
particles.
Electrons – negatively charged
particles.

29. BASIC ELECTRICITY
What is Electron Flow?
An electron from one orbit can knock out an electron from
another orbit. This continuous process results to the
formation of electricity.
Electricity is created as electrons collide and transfer from
atom to atom.

30. BASIC ELECTRICITY
ELECTRICAL CIRCUITS
-a system of conductors and components forming a
complete path for current to travel.

31. BASIC ELECTRICITY
SERIES PARALLE
L-is a circuit in which
current has only one path
to take.
-is a closed circuit in which
the current divides into two or
more paths before
recombining to complete the
circuit.