The document provides information about a module on preparing hand tools for Computer Systems Servicing NC II. It discusses the module outline, copyright information, writers and reviewers. It introduces the module and provides tips for learners and facilitators. The module will teach learners to plan tasks, prepare hand tools, and appreciate their importance in Computer Systems Servicing. It includes several activities for learners to complete.
This module will be all about installing and configuring computer hardware and software.
This is the second module for CSS, so make sure you've taken the Intro to CSS course before proceeding here. You will learn how to disassemble and assemble a computer, as well as install the operating system and necessary program applications.This module will be all about installing and configuring computer hardware and software.
This is the second module for CSS, so make sure you've taken the Intro to CSS course before proceeding here. You will learn how to disassemble and assemble a computer, as well as install the operating system and necessary program applications.This module will be all about installing and configuring computer hardware and software.
This is the second module for CSS, so make sure you've taken the Intro to CSS course before proceeding here. You will learn how to disassemble and assemble a computer, as well as install the operating system and necessary program applications.This module will be all about installing and configuring computer hardware and software.
This is the second module for CSS, so make sure you've taken the Intro to CSS course before proceeding here. You will learn how to disassemble and assemble a computer, as well as install the operating system and necessary program applications.This module will be all about installing and configuring computer hardware and software.
This is the second module for CSS, so make sure you've taken the Intro to CSS course before proceeding here. You will learn how to disassemble and assemble a computer, as well as install the operating system and necessary program applications.This module will be all about installing and configuring computer hardware and software.
This is the second module for CSS, so make sure you've taken the Intro to CSS course before proceeding here. You will learn how to disassemble and assemble a computer, as well as install the operating system and necessary program applications.This module will be all about installing and configuring computer hardware and software.
This is the second module for CSS, so make sure you've taken the Intro to CSS course before proceeding here. You will learn how to disassemble and assemble a computer, as well as install the operating system and necessary program applications.vThis module will be all about installing and configuring computer hardware and software.
This is the second module for CSS, so make sure you've taken the Intro to CSS course before proceeding here. You will learn how to disassemble and assemble a computer, as well as install the operating system and necessary program applications.This module will be all about installing and configuring computer hardware and software.
This is the second module for CSS, so make sure you've taken the Intro to CSS course before proceeding here. You will learn how to disassemble and assemble a computer, as well as install the operating system and necessary program applications.This module
INPUT and OUTPUT devices in Information Communication Technology .pptxsephaabarracoso1989
INPUT DEVICES – Are compose of devices that accepts data and instructions from the user or from other computer system.
OUTPUT DEVICES – Is any piece of computer hardware that displays results after the computer has processed the unput data that has been entered.
This module will be all about installing and configuring computer hardware and software.
This is the second module for CSS, so make sure you've taken the Intro to CSS course before proceeding here. You will learn how to disassemble and assemble a computer, as well as install the operating system and necessary program applications.This module will be all about installing and configuring computer hardware and software.
This is the second module for CSS, so make sure you've taken the Intro to CSS course before proceeding here. You will learn how to disassemble and assemble a computer, as well as install the operating system and necessary program applications.This module will be all about installing and configuring computer hardware and software.
This is the second module for CSS, so make sure you've taken the Intro to CSS course before proceeding here. You will learn how to disassemble and assemble a computer, as well as install the operating system and necessary program applications.This module will be all about installing and configuring computer hardware and software.
This is the second module for CSS, so make sure you've taken the Intro to CSS course before proceeding here. You will learn how to disassemble and assemble a computer, as well as install the operating system and necessary program applications.This module will be all about installing and configuring computer hardware and software.
This is the second module for CSS, so make sure you've taken the Intro to CSS course before proceeding here. You will learn how to disassemble and assemble a computer, as well as install the operating system and necessary program applications.This module will be all about installing and configuring computer hardware and software.
This is the second module for CSS, so make sure you've taken the Intro to CSS course before proceeding here. You will learn how to disassemble and assemble a computer, as well as install the operating system and necessary program applications.This module will be all about installing and configuring computer hardware and software.
This is the second module for CSS, so make sure you've taken the Intro to CSS course before proceeding here. You will learn how to disassemble and assemble a computer, as well as install the operating system and necessary program applications.vThis module will be all about installing and configuring computer hardware and software.
This is the second module for CSS, so make sure you've taken the Intro to CSS course before proceeding here. You will learn how to disassemble and assemble a computer, as well as install the operating system and necessary program applications.This module will be all about installing and configuring computer hardware and software.
This is the second module for CSS, so make sure you've taken the Intro to CSS course before proceeding here. You will learn how to disassemble and assemble a computer, as well as install the operating system and necessary program applications.This module
INPUT and OUTPUT devices in Information Communication Technology .pptxsephaabarracoso1989
INPUT DEVICES – Are compose of devices that accepts data and instructions from the user or from other computer system.
OUTPUT DEVICES – Is any piece of computer hardware that displays results after the computer has processed the unput data that has been entered.
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Building a Raspberry Pi Robot with Dot NET 8, Blazor and SignalR - Slides Onl...Peter Gallagher
In this session delivered at Leeds IoT, I talk about how you can control a 3D printed Robot Arm with a Raspberry Pi, .NET 8, Blazor and SignalR.
I also show how you can use a Unity app on an Meta Quest 3 to control the arm VR too.
You can find the GitHub repo and workshop instructions here;
https://bit.ly/dotnetrobotgithub
MATHEMATICS BRIDGE COURSE (TEN DAYS PLANNER) (FOR CLASS XI STUDENTS GOING TO ...PinkySharma900491
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2. TLE/TVL – Computer Systems Servicing NC II Grade 9/11
Quarter 4 – Module 1: Preparing Hand Tools
First Edition, 2020
Republic Act 8293, section 176 states that: No copyright shall subsist in any work of the
Government of the Philippines. However, prior approval of the government agency or office
wherein the work is created shall be necessary for exploitation of such work for profit. Such
agency or office may, among other things, impose as a condition the payment of royalties.
Borrowed materials (i.e., songs, stories, poems, pictures, photos, brand names, trademarks,
etc.) included in this module are owned by their respective copyright holders. Every effort has
been exerted to locate and seek permission to use these materials from their respective
copyright owners. The publisher and authors do not represent nor claim ownership over them.
Published by the Department of Education – Region XI
Development Team of the Module
Writers: Ailyn M. Latonio and Nilpha Grace O. Loberanes
Editors: Franick Dominic R. Llapitan
Reviewers: Glenn T. Zabate
Illustrator: -
Layout Artist: Wedzmer B. Munjilul
Template Developer: Neil Edward D. Diaz
Management Team: Reynaldo M. Guillena
Jinky B. Firman
Marilyn V. Deduyo
Alma C. Cifra
Aris B. Juanillo
Marcelo O. Roco
Printed in the Philippines by
Department of Education – Davao City
Office Address: DepEd Davao City Division, Elpidio Quirino Ave., Davao City
Telefax: 224-3274
E-mail Address: davaocity.division@deped.gov.ph
4. ii
Introductory Message
For the facilitator:
As a facilitator, you are expected to orient the learners on how to use this
module. You also need to keep track of the learners' progress while allowing them
to manage their own learning at home. Furthermore, you are expected to encourage
and assist the learners as they do the tasks included in the module.
For the learner:
As a learner, you must learn to become responsible of your own learning.
Take time to read, understand, and perform the different activities in the module.
As you go through the different activities of this module be reminded of the
following:
1. Use the module with care. Do not put unnecessary mark/s on any part of the
module. Use a separate sheet of paper in answering the exercises.
2. Don’t forget to answer Let Us Try before moving on to the other
activities.
3. Read the instructions carefully before doing each task.
4. Observe honesty and integrity in doing the tasks and checking your answers.
5. Finish the task at hand before proceeding to the next.
6. Return this module to your teacher/facilitator once you are done.
If you encounter any difficulty in answering the tasks in this module, do not
hesitate to consult your teacher or facilitator. Always bear in mind that you are not alone.
We hope that through this material, you will experience meaningful learning and
gain deep understanding of the relevant competencies. You can do it!
5. 1
Let Us Learn
Hello, learner! Computers are complicated devices and it is important to be
able to take care of them by using the right tools. Using the appropriate tools will help to
prolong the life span of a device, and it will also help in keeping a safe work
environment. In this module, you will learn about the different hand tools used in
Computer Systems Servicing.
In finishing this module, you will be able to:
a. plan and prepare for tasks to be undertaken;
b. prepare hand tools; and
c. appreciate the importance of hand tools in Computer Systems
Servicing NC II.
Are you ready? Let’s begin the learning process! See you and good luck!
Let Us Try
Activity 1: Answer me!
Hello, Learner! Let’s check what you already know about our lesson. Answer
the questions below. Choose the letter of the best answer and write your answer on
a separate sheet of paper.
1. Which of the following keeps the user grounded, which helps prevent
electrostatic damage to a computer or any other electrostatic sensitive device.?
a. Anti-static wrist trap b.
Anti-static wrist strap
2. What do you mean by ESD?
a. Electric Static Discharge
b. Emergency Static Discharge
c. Anti-static mat d.
Anti-static strap
c. Electro-static discharge
d. Electrical Static Discharge
3. Which of the following type of tool used to join two or more metal
conductors?
a. Screwdriver
b. Desoldering tool
c. Tweezer
d. Soldering iron
4. The following are examples of splicing tool, EXCEPT:
a. Tweezer
b. Wire stripper
c. Long nose plier
d. Side cutting pliers
5. Thea wants to clean different computer components without scratching or leaving
debris. What type of cleaning tool will she use?
a. Compressed air b.
Lint-free cloth
c. Anti-static mat
d. None of the above
6. Which of the following tool used to test the integrity of circuits and the
quality of electricity in computer components?
a. Loopback adapter b.
multimeter
c. soldering iron d.
power meter
6. 2
7. Which of the following does not belong the group?
a. Cable ties b. Tweezer c. Wire stripper d. screwdriver
8. This is used for holding, bending, and stretching the lead of electronic
component or connecting wires.
a. Side cutting pliers
b. Wire stripper
c. Hex driver
d. Long nose plier
9. Loopback adopter is used to test . a.
integrity of circuits
b. the quality of electricity in computer
c. functionality of computer ports d.
broken components
10. Which tool is used to blow away dust and debris from different
computer parts without touching the components?
a. Compressed air b.
Hex driver
11. What is a hand tool?
c. Loopback adapter d.
Part retriever
a. A tool that is used to clean different components of computer without
scratching or leaving debris.
b. A tool used to bundle cables neatly inside and outside of a computer.
c. A tool used to blow away dust and debris from different computer parts without
touching the components.
d. A tool that can be manually used by employing force or electrically
powered using electric current.
12. What is sometimes called a nut driver?
a. Torx screwdriver
b. Slotted screwdriver
c. Philips screwdriver d.
Hex driver
13. The following are some of the tips in using hand tools, except:
a. Do not modify hand tools.
b. Used tool how they are designed to be used.
c. Do not keep the manufacturer’s design intact.
d. Secure all hand tools and store them away properly.
14. Which tool is used to loosen or tighten screws that have a star-like depression
on top?
a. Hex driver
b. Torx screwdriver
c. Slotted screwdriver
d. Philips head screwdriver
15. Hardware tools are group into how many categories?
a. Five b. Four c. Six d. Two
7. 3
Let Us Study
Let’s now proceed with the lesson! The following section will provide you with a
brief discussion of the lesson. This will help you discover and understand new
concepts and skills in identifying different types of hand tools and their uses. As you go
along with this module, you will learn which tool is appropriate for a given task. Let’s do
this!
PLANNING AND PREPARING FOR TASK TO BE UNDERTAKEN
Planning involves deciding beforehand, what is to be done, when is it to be done,
how it is to be done and who is going to do it. Planning is also directed at resolving specific
problem issues or conflicts.
Preparing for a particular task to be undertaken includes proper tool
selection. The following are the tips and ways in proper tool selection:
a. Know and understand in detail the scope of work to be accomplished and plan
for the scope considering the sequence of tasks.
b. Selecting the best tool for each task requires training in the proper use of the
tools, field experience in their safe use, and following the manufacturer’s
guidance and instructions for that specific tool.
c. When obtaining the tool all the associate tooling and consumable parts, as
recommended by the manufacturer, must be included. In addition, related
consumable parts must also be selected and used according to their
manufacturer’s instructions.
SAFE USE OF TOOLS
Use the tool for the purpose for which it was designed. Not all tools
come with detailed instructions, but there are those that do spell out the safety
―Do’s and Don’ts for your safety. If there are set- up/use options, operator judgment
must always be based on what is the safest way to use the tool.
To complete hardware repairs, it is important to have a toolkit that should
contain all of the necessary tools. As you gain experience, you will learn which tools
to have available for different types of jobs.
HARDWARE TOOLS
Computer Systems Servicing involves many tools. All of each have their purpose
and classifications. These tools can be classified into four categories: Electro-Static
Discharge (ESD) tools, Hand Tools, Cleaning Tools, and Diagnostic Tools.
Electro-Static Discharge Tools
A human body can store electricity. When our body comes in contact with
other electronic components, it can cause damage. An instance of electro-static
discharge may not cause harm to the computer. When it is done repeatedly, it may cause
damage. To prevent this from happening to a computer, ESD tools are used. The
following are computer ESD tools:
8. 4
• The antistatic wrist strap is a tool that is worn around
the wrist and the other end, an alligator clip, is clipped
to the metal surface of the computer. This protects
computer equipment when ground to a computer
chassis.
• An antistatic mat is a mat that protects a
computer by preventing static electricity from
building up. The computer hardware
components are simply placed on top of the mat to
prevent electricity from accumulating and
damaging the computer.
Hand Tools
Antistatic wrist strap photo by
KMS/ Wikimedia
Antistatic Mat photo by
Toniperis/Wikimedia
Hand tools are commonly used in computer assembly and disassembly. These
hand tools usually come in small sizes. Sometimes, they also come as a set or
toolkit. The following are the most common hand tools used in Computer
Systems Servicing:
• A flat-head screwdriver is used to tighten or loosen screws with
negative slotted heads.
• A Phillips-head screwdriver is used to tighten or loosen screws with
positive slotted screws.
• Torx Screwdriver is used to tighten or loosen screws with star-like
depressions. This type of screw is commonly used in laptops.
• Hex Driver is sometimes called a nut driver. It is used to tighten or loosen
nuts.
• Needle-nose pliers are used for gripping small parts.
• Wire cutters are used for stripping and cutting wire.
• Tweezers are used for manipulating small parts.
• Part retriever is used for retrieving items or parts in areas where your hand
cannot fit.
• A flashlight is used to light up areas that you cannot see well.
• Wire Stripper is used to remove the insulation on a wire so that it can be joined
with other wires to create a cable.
• Crimper is used to attach terminals or connectors to wires.
• The punch-down tool is used to sack wires into termination blocks.
9. 5
Flathead Screwdriver Philips head screwdriver Torx screwdriver head
Hex Driver Needle Nose Plier Wire Cutter
Tweezer Part Retriever Flashlight
Wire Stripper Crimper Punch down tool
Cleaning Tools
To keep equipment in good running condition and to preserve its
condition, it must be kept clean at all times. Computer components can be very
sensitive and to ensure it is unharmed, you must use appropriate cleaning tools.
Below are the cleaning tools used in Computer Systems Servicing.
• Soft Cloth is also referred to as the lint-free cloth. It is used to clean
different computer components without scratching or leaving debris.
• Compressed Air is a can of air with a nozzle to blow away dust and debris
from computer components that are too sensitive to be touched.
• Cable Ties is a plastic strip with a self-lock to organize and bundle cables
inside and outside the computer neatly.
• Parts Organizer is where screws, jumpers, fasteners, and other small parts
are placed to prevent them from getting mixed.
Soft Cloth Compressed Air Cables ties Parts Organizer
Diagnostic Tools
Diagnostic tools are used to ensure that equipment or component is
functioning properly. Diagnostic tools are used to test and diagnose
equipment or components. The following are diagnostic tools used in Computer
Systems Servicing:
10. 6
• The multimeter is a device that is used to measure voltage, current, and
resistance. It tests the integrity of circuits and the quality of electricity
in computer components. There are two types of multimeter: digital and analog.
A digital multimeter displays the information on an LCD or LED. An analog
multimeter displays information using scales.
• Loopback Adapter is also known as loopback plug. It is used to test the
functionality of computer ports.
• Cable Tester is used to test the functionality of ethernet cables which are
used to connect two or more computers and create a network.
Analog
Multimeter
Digital
Multimeter
Loopback
Adapter
Cable Tester
CHECKING OF HAND TOOLS
There are many injuries that may occur while using hand tools on the job.
Many of these injuries occur from improper use, but there are also injuries
that involve a tool that was broken or in need of repair. What tool is being used
will decide what needs to be inspected on it. It is essential to check the tools before and
after using it. The following are some of the tips in using hand tools.
1. Keep tools clean. Dirty tools are harder to use safely and properly.
2. Do not modify hand tools. Keep the manufacturer’s design intact.
3. Secure all hand tools and store them away properly. Tools left out are
much more likely to be lost, stolen or damaged.
4. Used tool how they are designed to be used. This will keep the tool in good
condition longer and safe to be use.
UNSAFE OR FAULTY TOOLS
Hand tools include a wide variety of non-powered devices such as
wrenches, pliers, hammers, and screwdrivers. These tools may seem harmless,
but they are the cause of many injuries. The following are the safety practices related to
hand tools.
Pliers:
ü Do not increase the handle length of pliers to gain more leverage. Use a
larger pair of pliers or bolt cutters if necessary.
ü Do not substitute pliers for a wrench when turning bolts and nuts.
Pliers cannot grip these items properly and might cause a slip and
create an accident.
ü Never use pliers as a hammer on the handle. Such abuse is likely to result
in cracks or breaks.
11. 7
ü Cut hardened wires only with pliers designed for that purpose.
ü Always cut the wires in right angle. Never rock from side to side or bend
wire back and forth against the cutting edges.
Screwdrivers:
ü Never use screwdrivers as a pry bar, chisel, and punch stirrer or
scraper.
ü Never use screwdrivers with broken or worn-out handles. Screwdrivers of these
kinds should have tags to indicate that it is defective.
ü Never use pliers on a screwdriver for extra leverage. Only use wrench or
screwdrivers specifically designed for purpose.
Utility Knives/ Blades:
ü Do not use dull blades because they require more force, thus are more likely to
slip.
ü Replace the blade when it starts to “tear” instead of cut.
ü Never leave a knife unattended with the blade exposed.
ü Don’t bend or apply side loads to blades by using them to open cans or
loosen tight cover of containers. Blades are brittle and can snap easily.
Let Us Practice
How is it going so far? Have you gained a clear understanding of the lesson? Let’s
put that to practice! This will help you understand the lesson better.
Activity 2: Do you know me?
Directions: Identify the tools that should be used in the situations below.
Each question has a corresponding number. Write your answer in a separate sheet.
1.
4.
2.
5.
3.
6.
12. 8
7.
10.
13.
8.
11.
14.
9.
12.
15.
Let Us Practice More
You’re doing great! Now, let’s transfer what you have learned to real-life
situations. Let’s see your progress.
Activity 3: Classify the tools
Directions: Classify the given tools and give the function of each tool. Copy the
given format. Write your answer on a clean sheet of paper.
TOOLS CLASSIFICATION FUNCTION
1. Slotted Screwdriver
2. Multimeter/Multitester
3. Portable Electric Drill
4. Loopback Adapter
5. Compressed Air
6. Philips Screwdriver
7. Hex Driver
8. Cable Ties
9. Soldering Iron
10. Lint-free Cloth/Soft cloth
13. 9
Rubric:
Criteria
Points
SCORE
5 3 2
Content
The content is very
informative and
accurate. It contains
many supporting
details.
The content is
informative and has
supporting details.
The content is
informative with
minimum supporting
details.
Accuracy
It is very accurate to the
given task
Timeliness
The work is
submitted on time
It is accurate to the
given task with
minimal details The
work is submitted a
week after the
deadline
TOTAL SCORE
It is accurate to the
given task with no
details
The work submitted
past the due
Let Us Remember
Let’s check on what you have learned so far. The following activity will refresh your
mind on what you have learned in the lesson.
Activity 4: Fill in the Blanks
Directions: Complete the following statements by filling in the blanks. Write your
answer on a separate sheet of paper.
When maintaining or repairing computers it is essential to have
appropriate .
Know and understand in detail the to be
accomplished and plan for the scope considering the sequence of tasks.
Selecting the best tool for each task requires in the proper use of the
tools.
To complete hardware repairs, it is important to have a that should
contain all of the necessary tools.
Computer Systems Servicing Tools are categorized into four groups, namely:
, , , and .
ESD stands for . There are two tools to be used for ESD,
namely: , and .
The hand tools used in CSS are , , , ,
, , , , , , , and
.
It is important to keep the inside and outside of the computer clean. To clean the
computer, the following tools are used: , , , and .
It is also important to regularly check the integrity of computer parts and
circuits. The following tools are used for this purpose: , , and .
14. 10
In using tools, always select the right tool for the job. Don’t use
. This can create accidents.
Never use screwdrivers with or worn-out handles.
Do not increase the length of pliers to gain more leverage
Let Us Assess
You’re doing great! Now, let’s transfer what you have learned to real-life
situations. Let’s see your progress.
Activity 5: Tell me
Directions: Identify the tools that should be used in the situations below. Each
question has a corresponding number. Write your answer in a separate sheet.
Nicole wants to open her laptop and perform cleaning on the internal parts.
Before working on the tools, what should she do? (1) What tool should she use to
loosen the screws? (2) After loosening the screws, she’s worried these might get lost.
Where should the screws be placed? (3) Nicole is afraid she may damage her laptop
if she touched it directly. What tool should she wear to prevent ESD damage to the
computer? (4) She noticed the inside of her laptop is filled with dust. What tool should be
used to blow away the dust? (5) She wants to reach a part of the computer but she can’t
because her hands are too big to fit in there. What tool should she use? (6) After getting some
parts of the computer out, she wants to place it somewhere safe and avoid ESD damage to
the components. Where should she place the parts? (7) She also wants to perform
preventive maintenance on the components and check the integrity of the circuits.
What tools should she use? (8) She noticed that the screen was dirty and filled with
marks. What tool should she use to wipe these away without scratching the screen?
(9) She wants to connect her laptop to the computer using a network. What tool
should she use to test if the cables are properly working? (10)
15. 11
Let Us Enhance
Congratulations, learner! You have successfully reached the end of this module!
To deepen your knowledge about the lesson, let’s do another activity!
Activity 6: Crossword Puzzle
Directions: Use the clues below to complete the crossword puzzle. Write your answer
on a separate sheet.
Across
4. Electro Static Discharge
5. is a pair of opposing blades much like
scissors
Down
1. Used to blow away dust
2. Used to bundle cables neatly
3. Used to manipulate small part
Let Us Reflect
In this module, you were able to get to know the different tools used in Computer
Systems Servicing and the safety measures that needs to be kept in mind when
using them. CSS tools are classified into four groups: electro- static discharge tools,
hand tools, cleaning tools, and diagnostic tools. You were also able to learn how to
use them safely. Congratulations! You have accomplished this module and you did a
great job!
17. References
Canadian Centre for Occupational Health and Safety. 2017. Hand Tools. August 1. Accessed December
24, 2020.
https://www.ccohs.ca/oshanswers/safety_haz/hand_tools/general.html.
Cisco Networking Academy. 2013. IT Essentials: Computer Lab Procedures and Tool Use. June
25. Accessed December 23, 2020.
https://www.ciscopress.com/articles/article.asp?p=2086239&seqNum=7#:~:text=H
and%20Tools%20(2.2.&text=Most%20tools%20used%20in%20the,tighten%20or%20
loosen%20slotted%20screws.
—. 2018. Proper Use of Tools. January 1. Accessed December 24, 2020.
https://www.ciscopress.com/articles/article.asp?p=2756481&seqNum=5.
Danie Insurance, Inc. 2016. Properly Caring for Tools and Equipment. September 24. Accessed December
24, 2020. https://www.danielsinsuranceinc.com/properly-caring-for- tools-and-equipment/.
Michaels, Ken. 1999. Electrostatic Discharge: Causes, Effects, and Solutions. September 1.
Accessed December 23, 2020.
https://www.ecmweb.com/content/article/20897138/electrostatic-discharge- causes-effects-
and-solutions.
Noon, Charlie. 2020. How to use Anti Static Wrist Strap. November 12. Accessed December
24, 2020. https://www.wepc.com/how-to/properly-use-anti-static-wrist-
strap/#:~:text=Wear%20the%20strap%20with%20the,not%20just%20in%20your%2
0hand.&text=Turn%20your%20power%20supply%20OFF,power%20cord%20to%20t
he%20outlet.&text=Clip%20the%20alligator%20clip%20on,gril.
Oracle. 2012. How to Use an Antistatic Mat. January. Accessed December 24, 2020.
https://docs.oracle.com/cd/E19452-01/html/821-0912/gjjrm.html.
Ramilo, Ronaldo V., and Deover M Pasco. 2012. LM's and TG's - DCNHS. April 12. Accessed
12 23, 2020.
https://drive.google.com/file/d/0B41NpxO8pu79QmI4NU51bFEyLTg/view.
Trout, Jonathan. n.d. Preventive Maintenance: An Overview. Accessed December 24, 2020.
https://www.reliableplant.com/Read/12494/preventive-maintenance.
13
18. For inquiries or feedback, please write or call:
Department of Education – Davao City Division
Elpidio Quirino Ave., Poblacion District, Davao City, 8000
Davao del Sur
Telefax: (082) 224-3274, (082) 222-1672
E-mail Address: davao.city@deped.gov.ph