9

Technology
and Livelihood
Education
Quarter 1 – Module 1:
Read Plans and Details in
Accordance with Job
Requirement
PLUMBING
(Grade 9 Specialization Course)
Subject Area – TLE Grade 9- Plumbing Specialization Course
Self-Learning Module (SLM)
Quarter 1 – Module 1: Read Plans and Details in Accordance with Job Requirement
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.

Development Team of the Module

Writer: Roxane Love S. Descuatan
Editors: Hilda D. Ngilay and Jose F. Dacillo, Jr.
Reviewers: Amalia C. Caballes and Sally A. Palomo
Illustrators: Jay M. Alora, Romy A. Juanico and Roxane Love S. Descuatan
Layout Artist: Hilda D. Ngilay
Cover Art Designer: Reggie D. Galindez
Management Team: Allan G. Farnazo, CESO IV – Regional Director
Fiel Y. Almendra, CESO V – Assistant Regional Director
Romelito G. Flores, CESO V - Schools Division Superintendent
Mario M. Bermudez, CESO VI – Assistant Schools Division Superintendent
Gilbert B. Barrera – Chief, CLMD
Arturo D. Tingson Jr. – REPS, LRMS
Peter Van C. Ang-ug – REPS, ADM
Gilda O. Orendain - REPS, TLE/EPP/TVE
Juliet F. Lastimosa - CID Chief
Sally A. Palomo - Division EPS In- Charge of LRMS
Gregorio O. Ruales - Division ADM Coordinator
Amalia C. Caballes – EPS, TLE/EPP/TVE

Printed in the Philippines by Department of Education – SOCCSKSARGEN Region

Office Address: Regional Center, Brgy. Carpenter Hill, City of Koronadal

Telefax: (083) 2288825/ (083) 2281893
E-mail Address: region12@deped.gov.ph
Introductory Message
For the facilitator:

Welcome to the TLE – Plumbing Grade 9 Specialization Course Alternative Delivery

Mode (ADM) Module on Read Plans and Details in Accordance with Job Requirement!

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.
 What I Need to Know

Have you heard the saying, “A picture is worth a thousand words”? This
phrase is true specifically about technical drawings.
An engineer, a designer or an architect uses drawings to be able to describe
the size, shape, and relationship of a compound object. Hence, drawings have
become the universal language to communicate the necessary information for the
construction, assembly and service of industrial products.
In this module, you will learn independently on how to read the plumbing
layout plan. This includes the different types of lines; plumbing or piping drawings;
plumbing signs, symbols, and plumbing fixtures.
The lesson comes with learning activities designed to measure your progress.
You have to answer each to the best of your ability and be honest as you can.
Hopefully, after learning this module, you will be equipped with knowledge and skills
in Preparing Pipes, Tools and Equipment for Installation in Plumbing.

At the end of this module, you should be able to:

✓ Lay out work area for pipes installation. (TLE_IAPB9-12PI-Ia-b-1)
▪ Read plans and details in accordance with job requirement.
 What I Know

Let us determine how much you already know about plumbing signs and
symbols.

Activity 1.1 Match It!

Directions: Match the descriptions in Column A to the terms in Column B. Write

the letter that corresponds to your answer on the space provided
before each number.

COLUMN A COLUMN B

____1. A thick line used to trace the edges or contours a. line

of an object.

____2. A medium weight line used to show edges, b. alphabets of lines

surfaces and corners of an object which
cannot be seen. c. isometric
____3. Thin lines used to display a section view of the
cut surfaces of an object. d. orthographic
____4. A very thin (size) line made of long-short-long
drawings
lines. It is used to indicate the centers of
holes, arcs, and symmetrical objects
e. piping drawings
____5. A thin line used to show the size of an object.

____6. A thin line which shows the boundary of f. phantom line

dimension line.
____7. A line used to point to a drawing area that g. break line
requires an explanatory note.

____8. It is a thick line use to illustrate the internal h. cutting plane line
shape at a part or assembly by cutting
through the object. i. leader line
____9. This kind of line is used to shorten the view of
a long part of an object. j. extension line
____10. It is a long-short-short-long lines used to
display the movement of an object or part in k. dimension line
opposite positions.

____11. It illustrates the location and size of pipes, l. center line

fittings, and valves.
m. section line
 ____12. It is a single-angled projection. Objects can n. hidden line
be illustrated in the front view, the side view,
and the top or plan view.
o. object line
____13. This drawing displays a three-dimensional
object in a single image, from three
viewpoints.

____14. These are lines used for a specific purpose in

sketching plumbing drawings.

____15. It can be described as a straight one-

dimensional figure, without thickness and
endlessly extending in both directions.

Lesson READ PLANS AND DETAILS

IN ACCORDANCE WITH JOB
1 REQUIREMENT

What’s In

Have you tried giving a direction of a place just by writing it in a sentence? It

is difficult, right? It can be easier if you draw the direction of the place. Just like in
plumbing, a plumber can easily locate the different plumbing needed to be installed
if it is in a drawing or layout plan.

In this module, you will be learning on how to read the plumbing layout plan.
This includes the different types of lines used in drafting plumbing or piping
drawings.

Are you excited for this lesson? You may now proceed with the next activity.
 What’s New

At this point, you are heading into meaningful activities and learning
encounters. Complete the exercises and answer the learning activities to experience
lifelong and practical learning that awaits at the end of this module.

Activity 1.2 Identify Me!

Directions: Identify the various line types used in the drawings. Choose your answer
from the words inside the box and write it on the space provided.
.
object line dimension line extension line
hidden line section line
 What is It

Reading plans and details in accordance with job requirement is a

challenging task. That’s why in this part of the module you need to read each item
carefully and try to master the uses of each term for this will be your guide in doing
your next activities.

DEFINITION OF TERMS

Analyze is to examine something in great detail in order to understand it better.

Blueprint is a photographic print of technical drawing with white lines and blue
backgrounds.
Dimension is the measurement of one or more direction such as length, width, and
height.
Interpret is to ascribe particular meaning of significance to something.
Pictorial Diagram shows the basic form or lay-out of pictures of actual component.
Plan is a method of doing something that is work out in advance.
Schematic Diagram shows the basic form or lay-out of plumbing symbols.
Sign is something that indicates the rule to follow.
Symbol is something that represents abstraction with the names of plumbing
components.
Line can be described as a straight one-dimensional figure, without thickness and
endlessly extending in both directions.

READING PLUMBING LAYOUT PLAN OR PLUMBING DRAWING

The first step in reading a plumbing drawing is to learn the meaning of each line.
Lines are part of the information needed to fully understand the drawing. These
lines are commonly referred to as Alphabets of Lines.

USES OF ALPHABETS OF LINES

1. Object Line
A visible line, or object line is a thick line used to trace the edges or contours of an
object.
2. Hidden Line

A hidden line, also known as a hidden object line is a medium weight line used
to show edges, surfaces and corners of an object which cannot be seen.

3. Section Line

Section lines are thin lines used to display a section view of the cut surfaces of an
object.

4. Center Line

Center lines are very thin (size) line made of long-short-long lines. It is used to
indicate the centers of holes, arcs, and symmetrical objects.
5. Dimension Line

Dimension lines are thin lines used to show the size of an object. Both ends of the
dimension line have arrowheads stopping at the extension lines.

6. Extension Line

Extension lines, a thin line which shows the boundary of dimension line. An
arrowhead of the dimension line touches the extension lines.
7. Leader Line

Leader Line is much thinner line used to point to a drawing area that requires an
explanatory note. Preferably they’re drawn at 45° angle.

8. Cutting Plane Line

A cutting plane line is a thick line use to illustrate the internal shape at a part or
assembly by cutting through the object.

9. Break Line

Break Lines are used to shorten the view of a long part of an object.

Short and long break lines are used for flat surfaces. Cylindrical are used on rods,
dowels, etc.
10. Phantom Line

Phantom lines are long-short-short-long lines used to display the movement of an

object or part in opposite positions. It can also be used to view adjacent objects or
features.

Aside from the different kinds of lines, a plumber must also be familiar with the
different plumbing or piping drawings. To read a drawing correctly, a plumber needs
to have a clear understanding of the various types of drawing and its projection.

PIPING DRAWINGS

Piping drawings illustrate the location and size of pipes, fittings, and valves. There
are two projection methods used in pipe drawings. These are orthographic and
isometric (pictorial) pipe drawing.

ORTHOGRAPHIC PIPE DRAWINGS

Orthographic drawings are single-angled projections. Objects can be illustrated in

the front view, the side view, and the top or plan view.

Figure 1 - Orthographic projection of a toilet.

 Figure 2 - Orthographic projection of PVC Tee

In a single pipe illustration, it is recommended to use Single- and double-line

orthographic pipe drawings. This method may also be applied to more complicated
piping systems.

Figure 3- Single-line orthographic pipe drawing.

Figure 4 - Double-line orthographic pipe drawing of fig. 3.

ISOMETRIC (PICTORIAL) PIPE DRAWINGS

Isometrics display a three-dimensional object in a single image, from three

viewpoints. The finished drawing, in pictorial format, is easier to understand.

Single-line drawings show all essential information to layout and produce a

piping system. Double-line pipe drawings are not recommended for production
drawings because it requires more time to draw.

Figure 5—Single-line pictorial piping drawing

Figure 6 - Double-line pictorial piping drawing.

CROSSINGS

Crossing of pipes are used when there is a need to show a certain pipe is behind
another, the line representing the pipe farthest from the viewer will be shown with
a break, or interruption, where the other pipe passes in front of it.

Figure 7-A—Crossing of pipes.

Figure 7- B—Crossing of pipes.
Crossing of pipe shown without
Using an interrupted line to indicate
interrupting the pipe passing behind the
pipe furthest away.
nearest pipe.

What’s More

Time to practice what you have learned. In this part of the module, you will
answer an activity that will help you solidify your understanding about the topic.
Do your best and good luck!

Activity 1.3 Draw Me!

Direction: Draw the orthographic projection of the given drawings.

Front View

1.
 Side View Top View

Front View

2.

Side View Top View

 What I Have Learned

Now that you are about to complete this module, it is time to reflect on what
you have learned about how to read plans and details in accordance with job
requirement. This will not also deepen your understanding on how to use your
learning in your daily activities.

Activity 1.4 Sum It Up!

Directions: Now that you are about to complete this module, I’m sure you may now
be able to write your reflections by completing the sentences given
below.

I have learned that there are various types of lines used in drafting layout. These

lines are (1)_________________________________, (2)_________________________________,

(3)_________________________________, (4)__________________________________

(5)_________________________________, (6)_________________________________,

(7)_________________________________, (8)_________________________________,

(9)_________________________________, and (10)_________________________________.

Piping drawings illustrate the location and size of (11) __________________, (12)

___________________, and (13) ________________________. There are two projection

methods used in pipe drawings, first is (14) ______________________________________

and the other projection method is (15) ________________________________________.

A plumber must be familiar with the different lines and piping drawings because

________________________________________________________________________________

________________________________________________________________________________.
 What I Can Do

This section of the module provides you an activity which will help you
transfer your new knowledge or skill into real life situation or concerns. Do your
best in relating your experience especially in answering the given situations. Good
luck!
Activity 1.5 A. Identify Me!
Directions. Study the given figures below. Analyze and identify the lines based on
their application. You may use the words inside the box below and write
your answer on the space provided.

object line dimension line extension line

short break line hidden line cutting plane line
long break line cylindrical break line section line
center line leader line phantom line
Let us try to apply what you have learned in our lesson. Try doing the activity below.
Activity 1.5 B. Draw Me!
Directions: Make an isometric drawing using the layout below.

DRAW HERE
 Assessment

Now that you are about to finish this module, you are to determine your
learning by doing your best in answering the following activity properly.

Activity 1.6 Match Me!

Directions: Now that you are about to finish this module, you are to determine
your learnings by answering the following activities.
COLUMN A COLUMN B

____1. A thin line used to show the size of an object. a. line

____2. A line used to point to a drawing area that requires

an explanatory note. b. alphabets of lines
____3. Thin lines used to display a section view of the cut
surfaces of an object.
c. isometric
____4. It is a thick line use to illustrate the internal shape
at a part or assembly by cutting through the
object. d. orthographic drawings

____5. A thick line used to trace the edges or contours of

an object. e. piping drawings
____6. A thin line which shows the boundary of dimension
line. f. phantom line
____7. A medium weight line used to show edges, surfaces
and corners of an object which cannot be seen.
g. break line
____8. A very thin (size) line made of long-short-long lines.
It is used to indicate the centers of holes, arcs, and
symmetrical objects. h. cutting plane line

____9. This kind of line is used to shorten the view of a

long part of an object. i. leader line
____10. It is a long-short-short-long lines used to display
the movement of an object or part in opposite
j. extension line
positions.

____11. It can be described as a straight one-dimensional

figure, without thickness and endlessly extending k. dimension line
in both directions.

____12. They are single-angled projections. Objects can be l. center line

illustrated in the front view, the side view, and the
top or plan view.
 ____13. This drawing displays a three-dimensional object m. section line
in a single image, from three viewpoints.

____14. These are lines used for a specific purpose in n. hidden line
sketching plumbing drawings.

____15. It illustrates the location and size of pipes,

o. object line
fittings, and valves.

Additional Activities

Congratulations! You are about to finish this module. I hope you’ve learned a
lot about our lesson.
Activity 1.7 A. What Line Am I?

Directions: Identify the lines in the drawing. Write your answer on the space
provided.
Activity 1.7 B. What Projection Am I?

Directions: Identify the following drawings. Write ISOMETRIC, if it is an isometric

projection and ORTHOGRAPHIC, if it is an orthographic projection.
Write them on the space provided.

1. ___________________________________
2. ___________________________________

3. ___________________________________

4. ___________________________________

5. ___________________________________
 DISCLAIMER
This Self-learning Module (SLM) was developed by DepEd SOCCSKSARGEN
with the primary objective of preparing for and addressing the new normal.
Contents of this module were based on DepEd’s Most Essential Learning
Competencies (MELC). This is a supplementary material to be used by all
learners of Region XII in all public schools beginning SY 2020-2021. The
process of LR development was observed in the production of this module.
This is version 1.0. We highly encourage feedback, comments, and
recommendations.

For inquiries or feedback, please write or call:

Department of Education – SOCCSKSARGEN

Learning Resource Management System (LRMS)

Regional Center, Brgy. Carpenter Hill, City of Koronadal

Telefax No.: (083) 2288825/ (083) 2281893

Email Address: region12@deped.gov.ph