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2-Prepare-and-Interpret-Tech-Dwg CSS
Computer Hardware (Divine Word College of Calapan)
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9
TLE
–
ICT
CSS
Quarter 2 – Module 3: PREPARING AND
INTERPRETING TECHNICAL DRAWING
(PITD)
(Prepare/make changes to electrical/electronic schematics and drawings and
Store technical drawings and equipment/instruments)
(SUPPORT MATERIAL FOR INDEPENDENT LEARNING ENGAGEMENT)
A Joint Project of
SCHOOLS DIVISION OF DIPOLOG CITY
and the
DIPOLOG CITY GOVERNMENT
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TLE – ICT – CSS – Grade 9 Alternative Delivery Mode Quarter 2 –
Module 3: Preparing and Interpreting Technical Drawing (PITD) First
Edition, 2020
Development Team of the Module
Writer: Marojelou A. Magbuhos
Editor: Marojelou A. Magbuhos
Reviewer: Lynne B. Gahisan
Management Team:
Virgilio P. Batan Jr.
Lourma I. Poculan
Amelinda D. Montero
Nur N. Hussien
Ronillo S. Yarag
Leo Martinno O. Alejo
-
Schools Division Superintendent
Asst. Schools Division Superintendent
Chief, CID
Chief, SGOD
EPS PVR – LRMDS
PDO II - LRMDS
Printed in the Philippines by ________________________
Department of Education – Region IX – Dipolog City Division
Office Address: Purok Farmers’,Olingan,Dipolog City
Tel #: Fax No.: 065-212-6968
Tel. No.: 065-212-5828
Tel. No.: 065-212-2777
Email Address: dipolog.city@deped.gov.ph
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Introductory Message
For the facilitator:
Welcome to the Grade-9 Computer Systems Servicing Alternative Delivery
Mode (ADM) Module on Preparing and Interpreting Technical Drawing
(PITD):Prepare/make changes to electrical/electronic schematics and drawings
and Store technical drawings and equipment/instruments.
This module was collaboratively designed, developed and reviewed by
educators both from public and private institutions to assist you, the teacher
or facilitator in helping the learners meet the standards set by the K to 12
Curriculum while overcoming their personal, social, and economic
constraints in schooling.
This learning resource hopes to engage the learners into guided and
independent learning activities at their own pace and time. Furthermore, this
also aims to help learners acquire the needed 21st century skills while taking
into consideration their needs and circumstances.
In addition to the material in the main text, you will also see this box in the
body of the module:
Notes to the Teacher
This contains helpful tips or strategies that
will help you in guiding the learners.
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. Furthermore, you are expected to
encourage and assist the learners as they do the tasks included in the module.
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For the learner:
Welcome to the Grade-9 Computer Systems Servicing Alternative Delivery
Mode (ADM) Module on Preparing and Interpreting Technical Drawing (PITD):
Prepare/make changes to electrical/electronic schematics and drawings and
Store technical drawings and equipment/instruments.
This module was designed to provide you with fun and meaningful
opportunities for guided and independent learning at your own pace and time.
You will be enabled to process the contents of the learning resource while
being an active learner.
This module has the following parts and corresponding icons:
What I Need to Know
What I Know
This will give you an idea of the skills or
competencies you are expected to learn in the
module.
This part includes an activity that aims to
check what you already know about the
lesson to take. If you get all the answers
correct (100%), you may decide to skip this
module.
What’s In
This is a brief drill or review to help you link
the current lesson with the previous one.
What’s New
In this portion, the new lesson will be
introduced to you in various ways; a story, a
song, a poem, a problem opener, an activity
or a situation.
What is It
This section provides a brief discussion of the
lesson. This aims to help you discover and
understand new concepts and skills.
What’s More
This comprises activities for independent
practice to solidify your understanding and
skills of the topic. You may check the
answers to the exercises using the Answer
Key at the end of the module.
What I Have Learned
This
includes
questions
or
blank
sentence/paragraph to be filled in to process
what you learned from the lesson.
What I Can Do
This section provides an activity which will
help you transfer your new knowledge or skill
into real life situations or concerns.
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Assessment
This is a task which aims to evaluate your
level of mastery in achieving the learning
competency.
Additional Activities
In this portion, another activity will be given
to you to enrich your knowledge or skill of the
lesson learned.
Answer Key
This contains answers to all activities in the
module.
At the end of this module you will also find:
References
This is a list of all sources used in
developing this module.
The following are some reminders in using this module:
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 What I Know before moving on to the other
activities included in the module.
3. Read the instruction 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 through
with it.
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!
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What I Need to Know
This module covers the knowledge, skills, attitude, and values needed to
prepare/interpret diagrams, engineering abbreviation and drawings, symbols and
dimensions. The scope of this module permits it to be used in many different learning
situations. The language used recognizes the diverse vocabulary level of students. The
lessons are arranged to follow the standard sequence of the course. But the order in
which you read them can be changed to correspond with the textbook you are now
using.
This module is divided into two lessons, namely:

Prepare/make changes to electrical/electronic schematics and drawings

Store technical drawings and equipment/instruments
After going through this module, you are expected to:





Draw and identify correctly electrical/electronic schematic
Identify correct drawing; select and use equipment in accordance with job
requirements
Identify tasks to be undertaken for care and maintenance of drawings
according to company procedures
Record technical drawings and prepare an inventory in accordance with
company procedures
Identify task to be undertaken for proper storage of instruments according to
company procedures
What I Know
A. Direction: Answer the following questions. Write the letter of the best answer on
your notebook.
1. If the greek letter Omega (Ω) appears in a schematic diagram, the component
value being represented is a.
A. Capacitor
C. Transformer
B. Transistor
D. Resistor
2. The labels of a capacitor C1A and C1B in a diagram are examples of _______.
A. Designated letters
C. Subscript letters
B. Suffix letters
D. coefficient letter
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3. One of these is NOT given in a schematic diagram
A. Wiring specification
C. Actual appearance of components
B. Point-to-point resistance values
D. Operating instructions
4. The symbols on a schematic diagram are arranged so that the diagram can be
“read” in this manner.
A. Top to bottom
C. Right to left
B. Bottom to top
D. Left to right
5. Line conventions is use in drawing electrical and electritonics diagrams.
A. Line thickness
C. Interrupted lines
B. Thickness
D. Line application
B. TRUE OR FALSE.
__________6. Drawing is the act and discipline of composing drafting that visually
communicate how something functions or is constructed.
__________7. Delegate a portion of your garage, shed or basement closet as a place
to store tools.
__________8. Maintaining cleaning equipment is important because if your tools
are stored correctly, the bacteria you're trying to eliminate will grow
right on or in them.
__________9. Storing your tools properly makes them easy to find when needed
and helps keep them from damage.
__________10. Template used to draw ellipse.
Note: If you get 100% correct in this pre- assessment, skip the lesson but if not
and only get 50% to 99% correct, then proceed with the lesson.
Lesson
1
PREPARE/MAKE CHANGES TO
ELECTRICAL/ELECTRONIC
SCHEMATICS AND DRAWINGS
Electronic schematics are like recipes for electronics. They tell you what
ingredients to use and how to mix the ingredients. But instead of using text to explain
the recipe, a drawing is used.
What’s In
Ask:

Why is it important to use an electrical symbol?
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What’s New
Direction: Unscramble the letters to form a word. Write your answers on your
notebook.
1. LYSMBO
-
2. ARWGIND
-
3. GIESDATNNOI 4. POOSTMNECN 5. SEULAV
-
What is It
One of the features of a quality electronic diagram is its appearance with
simplicity in design and easy-to-understand layout. To achieve this, you have to follow
the following standards in laying out electronic diagrams.
Rules for Drawing Symbols.
Recommended practices to be used in the application of symbols to a circuit
diagramare listed below.
1. The position of a symbol on a diagram does not affect its meaning.
2. The weight of a line used in drawing a symbol does not affect its meaning. In some
cases, a heavier line may be used to emphasize a particular symbol.
3. A given symbol may be drawn in any size that is suitable for use in any particular
diagram. However, when a symbol is enlarged or reduced in size, it
should be drawn in proportion to the rest of the drawing.
4. If necessary for contrast, some symbols may be drawn smaller or larger than other
symbols on a diagram. However, for simplicity, it is recommended that not more than
two different sizes of symbols be used on any one diagram.
5. In general, a connecting line should be brought to a symbol either vertically or
horizontally, but a connecting line brought to a symbol at an angle has no particular
significance unless otherwise noted.
6. The arrowhead of a symbol may be open ( ) or closed ( ) unless otherwise noted.
7. The standard symbol for terminal (o) may be added to any symbol. But when this
is done, the terminal symbol should not be considered a part of the symbol itself.
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Reference Designations
The symbols used to represent various components on a circuit diagram are most
often accompanied by a combination of letters that identify the components but are
not themselves a part of the symbol (Table 3-1).
Table 3-1. Reference Designations of Electronic Components
Components
Capacitor
Diode
Resistor
Switch
Transformer
Transistor
Class Designation Letter(s)
C
D
R
S or SW
T
Q or TR
When more than one symbol of a specific type of component appears on a diagram,
the letter (or letters) is followed by numbers that identify the components. These
combinations of letters and numbers are referred to as reference designations
(Fig. 3-1).
Fig. 3-1. Recommended methods of indicating reference designations and component
values.
Numerical Values of Components
When details of the type, rating; or value of a particular component are to be given on
a diagram, this information is placed adjacent to the symbol or is given by means of
notes accompanying the diagram. For example, resistance and capacitance values are
indicated as shown in Fig. 1-3. In this scheme, the symbol Ω for ohms and the
abbreviations μF and pF for capacitance values are usually omitted and are instead
replaced by notes such as the following:
1. All resistors expressed in ohms unless otherwise indicated.
2. All capacitors expressed in microfarads unless otherwise indicated.
A resistance value of 1,000 ohms or more is most often expressed in terms of Kilohm
(K) or Meghm (M) units. Thus a resistance of 4,700 ohms is written as 4.7K, while a
resistance of 270,000 ohms may be written as 270K or as 0.27M. The comma used
when writing a 4-digit number such as 4,700 is not used when such a number is
given on a diagram.
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Capacitance values of 1 through 9,999 picofarads are usually expressed in picofarad
units. Capacitance values greater than 10,000 picofarads should be expressed in
microfarad units.
Suffix Letters
Suffix letters are used to identify separate parts of a unit upon a diagram when
such components appear as a single, enclosed unit as shown in Fig. 3-2. C1A and
C1B are the suffix letters used in the diagram.
Fig. 3-2. Two capacitors are enclosed in one unit.
Layout
The layout or form of a diagram should show the main features prominently.
The parts of a diagram should be carefully spaced to provide an even balance between
blank spaces and lines. Enough blank space should be left in the areas near symbols
to avoid crowding any necessary notes or reference information (Fig. 3-3).
Fig. 3-3. Example Schematic diagram of a power supply circuit.
Part
Value
Description
T1
220V (or 110V) to 12V
Transformer
DB1
Diode Bridge Rectifier
C1
470 µF (20V and upwards)
Capacitor
C2
1 µF (10V and upwards)
Capacitor
U1
7805
Voltage Regulator
What is Line Thickness?
The standard line conventions used in the preparation of these diagrams are shown
in Table 3-2.
Table 3-2. Line thickness
Line application
Line thickness
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For general use
Mechanical connection, shielding, and
future circuits line
Bracket-connecting dash line
Brackets and leader lines
Boundary of mechanical grouping
For emphasis
Medium
Medium
Medium
Thin
Thin
Thick
Connecting Lines
Lines connecting symbols and other parts on a diagram should, whenever
possible, be drawn either horizontally or vertically. As a general rule, no more than
three lines should be drawn to any point on a circuit diagram (Fig. 3-4A). This
procedure reduces the possibility of line crowding that could make the interpretation
of a diagram more difficult than necessary.
RECOMMENDED
(A)
AVOID IF POSSIBLE
(B)
Fig. 3-4. Connecting lines. (A) recommended and undesirable methods of drawing
lines to a point upon a diagram, (B) two “groups” of connecting lines drawn parallel
to each other.
When connecting lines are drawn parallel to each other, the space between them
should be at least 1/16 inch when the diagram is reduced to a final size.
Interrupted Lines
Connecting lines whether single or in groups, may be interrupted when a
diagram does not provide for a continuation of these lines to their final destination.
When a single line is interrupted, the line identification can also indicate the
destination (Fig. 3-5A). When groups of lines are interrupted, the destination of the
lines is usually given in conjunction with brackets (Fig. 3-5B). In all cases, the lines
should be located as close as possible to the point of interruption.
TO LEFT
AND RIGHT
CHANNELS
output
(B)
(A)
Fig. 3-5. Methods of identifying the destination of single and grouped connecting
lines.
Dashed Lines
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Dashed lines (----------) are used on schematic and other types of diagrams to
show a mechanical linkage between components or parts of components.
ELECTRONIC SCHEMATIC SYMBOL
To be able to read schematics you must know the schematic symbols. Here is an
overview of the most used symbols in circuit diagrams.
Electronic
Components
Schematic Symbols
Uses/Application
A large and a small line is suppose to
represent one battery cell so that the
image below would suggest a two-cell
battery of 3 V. But usually people just
draw the battery symbol with one or two
cells no matter what voltage it is.
Capacitors are either polarized or not.
The symbols that are used for the two
are shown below. Both in European and
US style.
Battery
European Style
Capacitor
Is a device that stores electrical
energy in an electric field.
US Style
The schematic symbol of the resistor are
drawn in two different ways. The
american style resistor is drawn as a
zigzag resistor while the european style
resistor is drawn as a rectangular
resistor.
Is a passive two-terminal electrical
component that implements electrical
resistance as a circuit element.
The variable resistor or potentiometer is
drawn in several different ways. The
symbol is often drawn as a resistor with
an arrow across it or pointing down on it
as the one beside.
Resistor
Variable
resistor
(Potentiometer)
Diode
Standard
Diode
Zener Diode
The diode family has several different
symbols because there are several
different types of diodes. Beside is a
standard diode, a zener diode and a
Light Emitting Diode (LED).
Light Emitting
Diode
Bipolar Junction Transistor
The most common transistor types are
the Bipolar Junction Transistor (BJT)
and the Field Effect Transistor (FET).
Transistor
Field Effect Transistor
The inductor symbol looks like a coiled
wire as this is what an inductor
essentially is.
Inductor
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The operational amplifier or “Opamp” is
represented as a triangle with two inputs
and one output. In some cases, the
power supply pins are also added.
Beside, a version without power supply
pins are shown.
A switch can be represented in
numerous ways in electronic
schematics.
The symbol of the transformer looks like
two inductors with something in
between them.
Operational
Amplifier
Switch
Transformer
(Trafo)
Lesson
2
STORE TECHNICAL DRAWINGS AND
EQUIPMENT/INTRUMENTS
Electronic schematics are like recipes for electronics. They tell you what
ingredients to use and how to mix the ingredients. But instead of using text to
explain the recipe, a drawing is used.
What’s In
A. Set
Show different kinds of drafting tools and materials
B. Perception
Ask:

What do you think is the function of these drafting tools and materials?
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What’s New
Direction: Write the word TRUE if the statement is correct and FALSE if the
statement is wrong.
________1. Divider is an instrument for measuring, transferring, or marking off
distances, consisting of two straight adjustable legs hinged together and
ending in sharp points.
________2. Drafting tape can also be used in Technical Drawing to help in keeping the
paper well positioned. Leaving no residue behind.
________3. Erasing shield is a thin plate (as of metal or celluloid) with holes usually of
several sizes used to confine an erasure to a limited area.
________4. A pencil sharpener is a device for sharpening a pencil's writing point by
shaving away its worn surface. Pencil sharpeners may be operated
manually or by an electric motor.
________5. A drawing paper specially prepared for the use of drawers (such as
draftsmen or sketchers).
What is It
Drafting is the act and discipline of composing drawings that visually
communicate how something functions or is constructed. Similar withdrawing /
sketch, it has several things to be used. Drafting tools, materials, and equipment are
the best friends of the architects. For our 5th Art Guide, we will tackle the different
kinds of drafting materials and their proper maintenance. Well, some of them are
commonly used and are familiar already.
Drafting Materials
Without the drafting tools, materials, and equipment, it will take you a long
time or it is very impossible to finish a work. The following are the basic tools and
materials used in drafting.
NAME
DRAFTING
TOOLS/MATERIALS
DESCRIPTION
It is a special table with a
slanted surface that can be
adjusted based on the desired
angle. It is higher than an
ordinary
writing
table
because some drawings, like
mechanical
drawing,
are
usually done while the
draftsman is standing.
Drafting Table
and Stand
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Guides in drawing parallel
horizontal lines.
T-square
Draws perfect 90, 60, 45,
and 30 degree angles.
Triangle
Used to draw angles from 0
to 90 degrees
Adjustable
Triangle
This guides horizontal,
vertical and diagonal lines.
Triangular Scale
Compass
Draws large arcs and
circles in pencil or pen
point.
Divider
Used to equally divide a
line or space by trial and
error.
Protractor
It is a semi-circular tool
used to measure or layout
angle/arc.
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French Curve
It is used as a guide in
drawing irregular curved
lines.
Erasing Shield
Used to erase ink, pencil
lines, and blots located in
space.
Pencil
Sharpener
As the name suggests, it
sharpens pencils.
Makes pencil points
conical and long without
breaking.
Sandpaper Pad
Consists of thick graphite
used for writing and drawing.
Hard –
use for
construction lines on
technical drawing
Medium –
use for general
use for technical drawing.
The harder grades are for
instrument drawings and the
softer is for sketching
Soft – use for technical
sketching artwork but are too
soft for instrument
drawing
Drawing Pencil
A thick paper specifically
for drafting and sketching.
Drafting Paper
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Used to remove unwanted
lines and marks in
drawing.
Pencil Eraser
It secures the drawing
paper on the table.
Drafting Tape
Brush eraser crumbs and
debris from the drafting
table
Drafting Brush
Circle Template
Ellipse Template
Template used
circles and arcs
to
draw
Template
ellipse
to
draw
used
Used to draw guidelines for
lettering
AMES Lettering
Guide
Used to draw non-circular
curves
Irregular Curve
HOW TO TAKE CARE OF DRAFTING TOOLS
Drafting tools are often delicate and have many intricate and small pieces
that need to be well maintained to continue working properly. Organizing and
storing these items has a great deal to do with keeping them in pristine shape and
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working correctly. With a little patience and developing a routine, your tools will be
well taken care of and working for a long time .
THINGS YOU WILL NEED:
1. Lay out all the drafting tools that you use and separate them into piles of like items.
Place all pencils together, markers, erasers, rulers, stencils, paper and miscellaneous.
2. Using the cleaner, spray the cloth and wipe down supplies that have residue on
them. Pencils, markers, stencils and rulers often retain oils on them from fingers.
3. Take the erasers and rub out any black marks. Do this by rubbing the eraser
against a clean piece of paper until the black smudge has disappeared. For kneaded
erasers, these can simply be stretched and remodelled into a ball, similar to bread
dough, to get the black smudge marks out.
4. Run your hands through your drafting brush
to remove any loose debris. Then, wipe it down
with the cleaning cloth to remove any residue
from the handle.
5. Roll up your drafting papers into a tight roll.
Secure them with a rubber band at each end. Place
the roll into a drafting tube for storage.
6. Place the pens and markers into the long slots
of the organizer tray. Place the erasers in the
smaller cube slots. Fill in with any other drafting
materials, such as lead refills, push pins, paper
clips, small rulers and mounting stickers.
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7. Take your compass and wipe it off with the
cleaning cloth. If it is going to be stored in the
organizer tray, wind the compass down until it is
straight (versus at an angle, making a triangle
shape). If it has its own case, then wind it to the
size the case has set for it to be stored, and place
it into the box.
8. Make a folder to hold all your stencils. Create
holding flaps in an ascending order so the stencils can be layered and easy to see and
access when needed. To make these flaps, simply use card stock paper and cut it into
3- or 4-inch sections. Glue each section onto a large main piece of card stock, starting
towards the top for the smallest stencil and working your way down to the bottom.
Glue three of the four edges, leaving the top edge open for the stencil to slide into.
9. Place this newly made stencil holder into a large plastic or mesh pouch. Put a dry
cleaning cloth in the pouch, placed over the stencils, to help keep them clean.
10. Place the drafting brush and rulers into the pouch. Then place the organizer tray
into the pouch. If the compass had its own storage box, then place this in the pouch.
All the major tools should now be in this portable carrying pouch with your paper in
the separate portable carrying drafting tube.
TIP
If you work in the same place every day, arrange your organizer trays on shelves or
put stackable trays near your work table.
What’s More
A. MULTIPLE CHOICE
DIRECTION: Write the letter of the best answer on your notebook.
______ 1. A letter designation is written near or beside a symbol to indicate what
type of component that symbol is. The letter designation for transistor is _______.
A. Q
C. S
B. R
D. T
______ 2. These types of lines are used to show mechanical linkages between
components or parts of components on schematic diagram.
A. Connecting lines
C. Medium lines
B. Dashed lines
D. Thin lines
______ 3. This punctuation mark is used to show the destination of grouped
interrupted lines in a diagram.
A. Bracket
C. Open and close quotations
B. Comma
D. Question mark
_______4. It is a special table with a slanted surface that can be adjusted based on
the desired angle.
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A. Drafting table and stand
B. Writing table
C. Long table
D. Mechanical table
_______5. Used to equally divide a line or space by trial and error.
A. Compass
B. Divider
C. Protractor
D. Erasing shield
What I Have Learned
Think back on something that you have learned from this Learner’s Material. Reflect
on the following questions stated inside the box.
I have learned that ____________________________________________________.
I have realized that ___________________________________________________.
I will apply ___________________________________________________________.
What I Can Do
Directions: Create a flipbook of drafting materials/tools/equipment. You may use
the old magazines, pictures/print out that complete your work. If pictures are not
available draw as many as you can and give the function of each. Be creative!
(sample only)
Scoring Rubrics:
CATEGORY
1. Information
21-25
All information
is correct
16-20
Most
information is
correct
11-15
Somewhat
information is
correct.
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0-10
Information is
incorrect.
YOUR
SCORE
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1. ContentAccuracy
The flip book is
well -organized.
It contains all of
the information
required: title,
functions and
illustration.
The flip book is
mostly
organized. It
contains most of
the information
required: title,
functions and
illustration.
The flip book is
somewhat
organized. It
contains some of
the information
required: title,
functions and
illustration.
The flip book is
not organized. It
contains few of
the information
required: title,
functions and
illustration.
2. Graphics/
Pictures
Illustrations go
well with the
text and are
nicely drawn
Illustrations go
well with the
text and most
are drawn
neatly.
Illustrations go
well with the text
and some are
drawn neatly.
Student was
able to work
independently
and ask for help
as needed.
Student was
able to work
mostly
independent and
asked for help
as needed.
Student was able
to work
somewhat
independently
and asked for
help as needed.
Illustrations
don't go well
with the text
and are not
drawn neatly, or
may be missing.
Student was not
able to work
independently
and asked for
help as needed.
4.
Independent
Work
Total of 100 Points
Interpretation of Scores
96-100
86-95
76-85
51-75
50 and below
Excellent
Very Good
Good
Fair
Poor
Assessment
A. Direction: Answer the following questions. Write the letter of the best answer on
your notebook.
1. If the greek letter Omega (Ω) appears in a schematic diagram, the component
value being represented is a.
A. Resistor
C. Transformer
B. Transistor
D. Capacitor
2. The labels of a capacitor C1A and C1B in a diagram are examples of _______.
A. Designated letters
C. Subscript letters
B. Suffix letters
D. coefficient letter
3. One of these is NOT given in a schematic diagram
A. Actual appearance of components
C. Wiring specification
B. Point-to-point resistance values
D. Operating instructions
4. The symbols on a schematic diagram are arranged so that the diagram can be
“read” in this manner.
A. Top to bottom
C. Left to right
B. Bottom to top
D. Right to left
5. Line conventions is use in drawing electrical and electritonics diagrams.
A. Line thickness
C. Interrupted lines
B. Thickness
D. Line application
16
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B. TRUE OR FALSE.
__________6. Drawing is the act and discipline of composing drafting that visually
communicate how something functions or is constructed.
__________7. Delegate a portion of your garage, shed or basement closet as a place
to store tools.
__________8. Maintaining cleaning equipment is important because if your tools
are stored correctly, the bacteria you're trying to eliminate will grow
right on or in them.
__________9. Storing your tools improperly makes them easy to find when needed
and helps keep them from damage.
__________10. Template used to draw ellipse.
Additional Activity
A. Direction: Draw at least three (3)schematic symbols of the following electronic
components and give each function (s).
Electronic Components
Schematic Symbols
Uses/Application
1.
2.
3.
17
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Answer Key
Assessment
A.
1.
2.
3.
4.
5.
A
B
C
D
D
B.
1. FALSE
2. TRUE
3. FALSE
4. FALSE
5. TRUE
LESSON 1
What’s New
1. Symbol
2. Drawing
3. Designation
4. Components
5. Values
WHAT’S More
1. D
2. B
3. A
4. A
5. A
What I Know
1. D
2. B
3. A
4. C
5. D
6. FALSE
7. TRUE
8. FALSE
9. TRUE
10. TRUE
LESSON 2
What’s New
1. True
2. True
3. True
4. True
5. True
18
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References
Alashka, Europez. “Computer System Servicing NC II”. kupdf.net (2017). Ipinanumbalik
June 19, 2020, mula sa/kay https://kupdf.net/download/computer-systemservicing ncii_59107eb3dc0d60e933959e80_pdf
Dahl, Oyvind Nydal “Electronic Schematic Symbols”. build-electronic-circuits.com (2012).
Ipinanumbalik June 15, 2020, mula sa/kay https://www.build-electroniccircuits.com/schematic-symbols/
Industrial-electronics.com (n.d.). Ipinanumbalik June 15, 2020, mula sa/kay
http://www.industrial-electronics.com/eed5th_7.html
https://www.buildelectroniccircuits.com/electronicschematics/#:~:text=Electronic%20sche
matics%20are%20like%20recipes,are%20aso%20called%20circuit%20diagrams.
Alashka, Europez. “Computer System Servicing NC II”. kupdf.net (2017). Ipinanumbalik
June 19, 2020, mula sa/kay https://kupdf.net/download/computer-systemservicing-ncii_59107eb3dc0d60e933959e80_pdf
Haynes, Sarah. “How to Take Care of Drafting Tools”. homesteady.com (2020). Ipinanumbalik
June 15, 2020, mula sa/kay https://homesteady.com/12170358/how-to-take-careof-drafting-tools
https://imgaws.ehowcdn.com/877x500p/s3.amazonaws.com/cme_public_images/www_eh
ow_com/i.ehow.com/images/a04/m8/24/care-drafting-tools-800x800.jpg
leefrancesemery. “Proper Care of Drafting Instruments”. philnews.ph (2009). Ipinanumbalik
June 15, 2020, mula sa/kay https://hubpages.com/art/Proper-Care-of-DraftingInstruments
Millis, Ned. “What Tools Are Used for Technical Drawings?”.
careertrend.com. (2019).
Ipinanumbalik June 19, 2020, mula sa/kay https://careertrend.com/list-7388801list-architect-tools.html
Valle Rey, Maestro. “What Are The Drawing Instruments And Their Uses”. philnews.ph.
(2019).
Ipinanumbalik
June
19,
2020,
mula
sa/kay
https://philnews.ph/2019/10/09/what-are-the-drawing-instruments-and-theiruses/
www.
steemit.com.
(2018).
Ipinanumbalik
June
15,
2020,
mula
sa/kay
https://steemit.com/art/@steemph.cebu/drafting-materials-and-their-propermaintenance-or-steemph-cebu-s-5th-art-guide
www. quizlet.comhttps://quizlet.com/347774747/drafting-materials-and-tools-itsusesfunctions-flash-cards/
https://www.buildelectroniccircuits.com/electronicschematics/#:~:text=Electronic%20sche
matics%20are%20like%20recipes,are%20aso%20called%20circuit%20diagrams.
www.5.imimg.com. Ipinanumbalik August 14, 2020, mula sa/kay
https://5.imimg.com/data5/MV/EY/MY-10099192/flipbooks-500x500.jpg
https://www.build-electronic-circuits.com/power-supply-circuit/
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For inquiries or feedback, please write or call:
Department of Education – City Schools Division of Dipolog City,
Zamboanga del Norte.
Tel #: Fax No.: 065-212-6968
Tel. No.: 065-212-5828
Tel. No.: 065-212-2777
Email Address: dipolog.city@deped.gov.ph
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