PERFORM MENSURATION AND CALCULATION

COMPETENCY BASED LEARNING MATERIAL

Sector: AUTOMOTIVE / LAND TRANSPORT

Qualification: Automotive Servicing NC II

Unit of Competency: Perform Mensuration and Calculation

Module Title: Performing Mensuration and Calculation

Republic of the Philippines
TECHNICAL EDUCATION AND SKILLS DEVELOPMENT AUTHORITY

PTC - TARLAC

HOW TO USE THIS COMPETENCY–BASED LEARNING MODULE

Welcome to the Module Performing Mensuration and Calculation. This module
contains training materials and activities for you to complete.

This unit of competency Perform Mensuration and Calculation contains the
knowledge, skills and attitudes required in Automotive Servicing. It is one of the
Common Modules at National Certificate Level ll.

You are required to go through series of learning activities in order to complete each
learning outcome of the module. In each learning outcome there are Information
Sheets. Resource Sheets and Reference Materials for further reading to help you
better understand the required activities. Follow these activities on your own and
answer the self-check at the end of each learning outcome. Get the answer key from
your instructor and check your work honestly. If you have questions, please don’t
hesitate to ask your facilitator for assistance.

Recognition to Prior Learning (RPL)

You may already have some or most of the knowledge and skills covered in this
module because you have:

• been working for sometime
• already completed training in this area

If you can demonstrate to your trainer that you are competent in a particular skill or
skills, talk to him/her about having them formally recognized so you won’t have to do
the same training again. If you have qualifications or Certificates of Competency
from previous trainings, show them to your trainer. If the skills you acquired are still
relevant to this module, they may become part of the evidence you can present for
RPL.

At the end of this learning material is a Learner’s Diary, use this diary to record
important dates, jobs undertaken and other workplace events that will assist you in
providing further details to your trainer or assessors. A Record of Achievement is
also provided for your trainer to complete once you completed the module.

This learning material was prepared to help you achieve the required competency in
Performing Mensuration and Calculation. This will be the source of information
for you to acquire the knowledge and skills in this particular trade independently and
at your own pace with minimum supervision or help from your instructor.

In doing the activities to complete the requirements of this module, please be guided
with the following:

• Talk to your trainer and agree on how you will both organize the training under
this module. Read through the module carefully. It is divided into sections
which cover all the skills and knowledge you need to successfully complete.

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• Work through all information and complete the activities in each section.
Read the information sheets and complete the self-checks provided.
Suggested references are included to supplement the materials provided in
this module.

• Most probably your trainer will also be your supervisor or manager. He/ She
is there to support you and show you the correct way to do things. Ask for
help.

• Your trainer will tell you the important things you need to consider when you
are completing the activities and it is important that you listen and take notes.

• You will be given plenty of opportunities to ask questions and practice on the
job. Make sure you practice your new skills during the regular work shifts.
This way you will improve both your speed and memory and also your
confidence.

• Talk to more experienced work mates and ask for their guidance.

• Use self–check questions at the end of each section to test your own
progress.

• When you are ready, ask you trainer to watch you perform the activities
outlined in this module.

• As you work through the activities, ask for written feedbacks on your progress.
Your trainer keeps feedbacks/pre-assessment reports for this reason. When
you have completed this learning material and feel confident that you have
had sufficient knowledge and skills, your trainer will arrange on appointment
with a registered assessor to assess you. The results of the assessment will
be recorded in your Competency Achievement Record.

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Course Title AUTOMOTIVE SERVICING
Unit of Competency PERFORM MENSURATION AND CALCULATION

Module Title PERFORMING MENSURATION AND CALCULATION

Module Description This module covers calculations and mathematical
problems related to automotive works including tolerances
and measurement, including conversion of two systems of
measurements.

This module consists of three learning outcomes,
each outcome contains learning activities for both
knowledge and skills supported with information sheets,
self-check and job/operation sheets gathered from
different sources. Before you perform the manual
exercises, read the information sheet and answer the self-
check provided to confirm to yourself and to your instructor
that you are equipped with knowledge necessary to
perform the skill portion of the particular learning
outcomes.

Upon completion of this module, you have to
subject yourself to your instructor for assessment; you will
be given a certificate of completion as a proof that you met
the standard requirement (knowledge and skills) for this
module. The assessment could be in different methods as
prescribed in the competency standard.

Nominal Duration 4 hours
Pre-Requisite NONE
Qualification Level National Certificate Level II

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Learning Outcomes LO 1 Select measuring instrument.
LO 2 Carry out measurement and calculations.
LO 3 Maintain measuring instruments.

Assessment Criteria

LO 1 1. Object or components to be measured are identified.

2. Correct specifications are obtained from relevant
source.

3. Appropriate measuring instrument is selected as per
job requirement.

LO 2 1. Measuring tools are selected in line with job
requirements.

2. Accurate measurements are obtained.

3. Calculations needed to complete work/task are
performed using the four fundamental operation of
mathematics.

4. Numerical computation checked is correct and
accurate.

LO 3 1. Measuring instruments are cleaned before and after
using.

2. Measuring instruments are kept in safe dry place.

3. Proper techniques in using precise instrument
according to manufacturers standards.

4. Proper handlings of measuring instruments are
observed in accordance with industry standards.

‘

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Qualifications AUTOMOTIVE SERVICING NC II
Module Title Performing Mensuration and Calculation

Learning Outcome Select Measuring Instrument

Assessment Criteria 1. Object or components to be measured are identified.

2. Correct specifications are obtained from relevant
source.

3. Appropriate measuring instrument is selected as per
job requirement.

[ 1. Module in Mensuration and Calculation
2. Measuring Tools
Resources
1.1 Multi-tester
1.2 Micrometer (in-out depth)
1.3 Vernier caliper (out) (inside)
1.4 Dial gauge with mag. Std
1.5 Plastic gauge
1.6 Straight edge
1.7 Thickness gauge
1.8 Torque gauge
1.9 Small hole gauge
1.10 Telescope gauge
1.11 Tri square
1.12 Protractor
1.13 Combination gauge
1.14 Steel rule

3. Types of Measurement

3.1 Types of Measurement
3.2 Area
3.3 Displacement
3.4 Inside diameter
3.5 Circumference
3.6 Length
3.7 Thickness
3.8 Outside diameter
3.9 Taper
3.10 Out of roundness
3.11 Oils clearance
3.12 End play/trust clearance

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Learning Experiences

LO 1 Select Measuring Instrument Special Instructions
Learning Activities

Reading Activity 1

Read: Information Sheet 1 (LO1)
Read: Activity Sheet 1(LO 1)
Self Check 1

Do: Self-Check 1 Read the instructions carefully in
the self-check

Check your work with the Answer Sheet Refer to your trainer for the
correct answer of the self-check

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Information Unit Perform Mensuration and Calculation
Sheet No. 1 Module Performing Mensuration and Calculation

INTRODUCTION

JOB SAFETY
PURPOSE OF PERFORMING MENSURATION AND CALCULATION

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They s2a.y aTcocipdreonvtisdearseciceanutisfiecds.oTluhtieoyn atoreacnasuwseerdthbey ncaereedlessosf avcethioicnlse. uTsehresyaanrde
caused bysienravtitceentteiocnhntoictiahnesjoabs awnedll tahseythceasutsueddenbty. using damaged or incorrect
tools. Fewer accidents occur in shops that are neat and clean.

In connection to this approach, technicians and trainees must follow the
standarTdraainnedeasdionpAtsutsoemlfoaticvteuaSliezravtiinogn sbheohualvdioprosstsoewsaardnsindsetitnecrmt oinf iwngillifnagunltessasntdo
ustnrdicetlrygofollcoowmpmroocnedcuormespegtievennciebsy tehsepemcaianlulyfacinturepresr,foinrmcliundgingmtehnesusruamtiomnaryanodf
ecaxlpceurliaetniocne asgiat tahnesrewder tfhroemurgpernetvnioeuesds atrnodubdleesmanind otfhmatanypainrtdicuusltarries.unBiteinogf
acobmlepteotemnecaiessuarendacpcruorpaetreloybisseorvninegoof cthcuepmatoiosnt aiml hpeoartltahnst tsaknildlsarad Tanecdhsnaicfeiatyn. can
cultivate in Automotive and Land Transport Sector. Measuring is very important
iEnLbEoMthEtNroTuSblOesFhPooEtRinFgOaRndMrINepGaiMr.EONftSeUn,RaAmTIeOaNsuAreNmDeCntAtLhaCtUisLAofTf IbOyNas little as
0.001 inch will keep a part from fitting properly and from operating satisfactorily.

1. Understanding of mathematics symbols, signs and formulas.
2. Knowledgeable in using measuring tools and instruments.
3. Knowledgeable in using or reading mathematics chart.
4. Knowledgeable in maintaining measuring instruments.

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Activity Unit Perform Mensuration and Calculation
Sheet No. 1 Module Performing Mensuration and Calculation

SELECTING MEASURING INSTRUMENT
Objectives

When you have completed this learning element you will be able to:

Select measuring instrument

Tools, materials and aids you will need:

1. multitester
2. micrometer (in-out, depth)
3. vernier caliper
4. dial gauge with mag. std.
5. plastic gauge
6. straight edge
7. thickness gauge
8. torque gauge
9. small hole gauge
10. telescope gauge
11. tri square
12. protractor
13. combination gauge
14. steel rule

Pre-requisite Information Sheets;

• Read Manuals in: Measuring Tools and Its Uses

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USE A DIAL INDICATOR

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Self-Check Unit Perform Mensuration and Calculation
No. 1 Module Performing Mensuration and Calculation

Learn your mastery of learning outcome 1 by completing the questions below.

QUESTIONS Satisfactory
The trainee should answer the following questions. Response

Yes No

Determining measuring tools

1. ___________ is one of the measuring tools used in most

automotive shops.

a. socket wrench c. open-end wrench

b. vernier caliper d. bearing puller

2. Responsible in providing manuals is _______________

a. trainee c. industry

b. trainor d. supervisor

3. ____________ is most in longer distance and also in short

distances.

a. pull push rule c. ruler
b. torque wrench d. L – square

4. ____________ measures the exerted force in tightening bolts

or nuts.

a. torque wrench c. open end wrench

b. socket wrench d. combination wrench

5. ____________ are strips or blades or metal of various

thickness used to measure small gaps or clearances between

two parts.

a. thickness gauge / feeler gauges c. pressure gauge

b. micrometer d. vacuum gauge

6. __________ is used to measure voltage in an electrical circuit.

7. __________is used to measure the resistance of an electric
circuit.

8. __________is used to measure the current flow in a circuit.

9. __________is used to measure high pressure on automotive
instruments and controls.

10. __________is used to measure pressures such as intake
manifold vacuum.

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Answer Key Unit Perform Mensuration and Calculation
No. 1 Module Performing Mensuration and Calculation

Check your answer with the answer key below. If you fail to get it right, refer to
corresponding resource until you make it perfect.

1. B. vernier caliper
2. C. Industry
3. A. Pull push rule
4. A. Torque wrench
5. A. Thickness gauge / feeler gauge
6. Voltmeter
7. Ohmmeter
8. Ammeter
9. Pressure gauge
10. Vacuum Gauge

‘

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Qualifications AUTOMOTIVE SERVICING NC II
Module Title Performing Mensuration and Calculation

Learning Outcome Carry out Measurement and Calculation

Assessment Criteria 1. Measuring tools are selected in line with job
requirements.

2. Accurate measurements are obtained.

3. Calculations needed to complete work/task are
performed using the four fundamental operation of
mathematics.

4. Numerical computation checked is correct and
accurate.

[ 1. Module in Mensuration and Calculation
2. Measuring Tools
Resources
Multi-tester
Micrometer (in-out depth)
Vernier caliper (out) (inside)
Dial gauge with mag. Std
Plastic gauge
Straight edge
Thickness gauge
Torque gauge
Small hole gauge
Telescope gauge
Tri square
Protractor
Combination gauge
Steel rule

3. Types of Measurement

Types of Measurement
Area
Displacement
Inside diameter
Circumference
Length
Thickness
Outside diameter
Taper
Out of roundness
Oils clearance
End play/trust clearance

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Learning Experiences Special Instructions

LO 2 Carry out measurement and calculation
Learning Activities

Reading Activity 2
Read: Information Sheet 2
Read: Activity Sheet 1-6

Do Self check 2 (Practice Problems)
Check your Answers on the answer
sheet

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Information Unit Perform Mensuration and Calculation
Sheet No. 2 Module Performing Mensuration and Calculation

Title: : Carry out Measurement and Calculation

Program : Perform Mensuration and Calculation

Objectives :

When you have completed this learning element you will be able to carry
out measurements and calculations

Tools, Materials and Aids you will need

1. vernier caliper
2. thickness gauge / feeler gauge
3. ruler
4. micrometers
5. Telescoping Gauge
6. Torque Wrench

History of Measurement

Originally, the English measuring system was the most common in the
world. In the last 200 years more than 90% of the world’s people have adopted

the metric system.

Linear measurement means to measure distance or length. There are two
main measuring systems used in the world today, the English System with its
common unit of measure is the inch and the Metric System with its common unit
of measure in meter.

Vernier Caliper

A vernier caliper can take both inside and outside measurements. These
may be either thousandths of an inch or hundredths of a millimeter. The vernier
caliper scale is divided into 50 parts and numbered by fives from 0 to 50. The 50
divisions on the vernier scale occupy the same space as 49 divisions on the
frame. The difference is 1/100 (0.001) inch.

Thickness Gauge / Feeler Gauge

Thickness gauge are strips or blades or metal of various thickness. They
are used to measure small gaps or distances such as the clearance between two
parts. Many thickness gauges are dual dimensioned.

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Ruler

The simplest tool for measuring short distances, the tape measure is
another type of steel rule. However, neither is accurate enough for most
automotive service work.

Micrometer

The USC or ‘inch micrometer” reads in thousands of an inch. Some read in
ten-thousands. Micrometer is a hand-held precision measuring instrument. In
metric measurements are in hundredths of a millimeter. The two types of
micrometer are the inside micrometer and outside micrometer. The micrometer is
used most in the automotive shop.

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Activity Unit Perform Mensuration and Calculation
Sheet No. 1 Module Performing Mensuration and Calculation

Use the Telescoping Gauge

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Activity Unit Perform Mensuration and Calculation
Sheet No. 2 Module Performing Mensuration and Calculation

Check a torque wrench for accuracy

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Activity Unit Perform Mensuration and Calculation
Sheet No.3 Module Performing Mensuration and Calculation

USE VERNIER CALIPER TO TAKE INSIDE, OUTSIDE AND DEPTH
MEASUREMENT

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Activity Unit Perform Mensuration and Calculation
Sheet No.4 Module Performing Mensuration and Calculation

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Activity Sheet Unit Perform Mensuration and Calculation
No.5 Module Performing Mensuration and Calculation

USE OF DIAL INDICATORS

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Activity Sheet Unit Perform Mensuration and Calculation
No. 6 Module Performing Mensuration and Calculation

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Self-Check No. 2 Unit Perform Mensuration and Calculation
Module Performing Mensuration and Calculation

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