3 Perform Mensuration And Calculation
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AUTOMOTIVE / LAND TRANSPORT
Sector: Qualification: Unit of Competency: Module Title:
Automotive Servicing NC II Perform Mensuration and Calculation Performing Mensuration and Calculation
Republic of the Philippines Technical Education and Skills Development Authority Provincial Training Center Valencia City, Bukidnon
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. Document No.:
TESDA PTC Bukidnon
Automotive Servicing NC II
Issued by:
Date:
Revision: 000
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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.
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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Automotive Servicing NC II
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QUALIFICATION : Automotive Servicing NC II UNIT OF COMPETENCY : Perform Mensuration And Calculation MODULE TITLE : PERFORMING MENSURATION AND CALCULATION
INTRODUCTION: 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. Learning Outcomes LO 1
Select measuring instrument.
LO 2
Carry out measurement and calculations.
LO 3
Maintain measuring instruments.
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. 4. Measuring tools are selected in line with job requirements. Document No.:
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5. Accurate measurements are obtained. 6. Calculations needed to complete work/task are performed using the four fundamental operation of mathematics. 7. Numerical computation checked is correct and accurate. 8. Measuring instruments are cleaned before and after using. 9. Measuring instruments are kept in safe dry place. 10. Proper techniques in using precise instrument according to manufacturers standards. 11. Proper handlings of measuring instruments are observed in accordance with industry standards.
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QUALIFICATION : Automotive Servicing NC II UNIT OF COMPETENCY : Perform Mensuration And Calculation MODULE TITLE : PERFORMING MENSURATION AND CALCULATION Learning Outcome #1 Learning Contents:
:
Select Measuring Instrument
1. Perform correct check-up procedures performed based on vehicle manufacturer’s standard
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.
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Learning Experiences LO 1 Select Measuring Instrument Learning Activities
Special Instructions
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 Sheet 3-1.1
JOB SAFETY Some people say accidents will happen! But safety experts disagree. They say accidents are caused. They are caused by careless actions. They are caused by inattention to the job and they caused by using damaged or incorrect tools. Fewer accidents occur in shops that are neat and clean. Trainees in Automotive Serving should posses an instinct of willingness to undergo common competencies especially in performing mensuration and calculation as it answer the urgent needs and demand of many industries. Being able to measure accurately is one of the most important skills a Technician can cultivate in Automotive and Land Transport Sector. Measuring is very important in both troubleshooting and repair. Often, a measurement that is off by as little as 0.001 inch will keep a part from fitting properly and from operating satisfactorily. PURPOSE OF PERFORMING MENSURATION AND CALCULATION 1. To know the proper ways in performing mensuration and calculation. 2. To provide scientific solution to answer the needs of vehicle users and service technicians as well as the student. In connection to this approach, technicians and trainees must follow the standard and adopts self actualization behaviors towards determining faults and strictly follow procedures given by the manufacturers, including the summary of experience gathered from previous troubles in that particular unit of competencies and proper observing occupational health standard and safety. ELEMENTS OF PERFORMING MENSURATION AND CALCULATION 1. 2. 3. 4.
Understanding of mathematics symbols, signs and formulas. Knowledgeable in using measuring tools and instruments. Knowledgeable in using or reading mathematics chart. Knowledgeable in maintaining measuring instruments.
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Activity Sheet No. 1
Unit Module
Perform Mensuration and Calculation 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 3-1.1 Learn your mastery of learning outcome 1 by completing the questions below. Satisfactory Response
QUESTIONS
Yes
The trainee should answer the following questions. 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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No
Answer Key 3-1.1
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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QUALIFICATION : Automotive Servicing NC II UNIT OF COMPETENCY : Perform Mensuration And Calculation MODULE TITLE : PERFORMING MENSURATION AND CALCULATION Learning Outcome #2
:
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.
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Learning Experiences LO 2 Carry out measurement and calculation Learning Activities
Special Instructions
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 Sheet 3-1.2 Carry out Measurement 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. 2. 3. 4. 5. 6.
vernier caliper thickness gauge / feeler gauge ruler micrometers Telescoping Gauge 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. Document No.:
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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 Sheet No. 1
Unit Module
Perform Mensuration and Calculation Performing Mensuration and Calculation
Use the Telescoping Gauge
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Activity Sheet No. 2
Unit Module
Perform Mensuration and Calculation Performing Mensuration and Calculation
Check a torque wrench for accuracy
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Activity Sheet No.3
Unit Module
Perform Mensuration and Calculation Performing Mensuration and Calculation
USE VERNIER CALIPER TO TAKE INSIDE, OUTSIDE AND DEPTH MEASUREMENT
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Activity Sheet No.4
Unit Module
Perform Mensuration and Calculation Performing Mensuration and Calculation
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Activity Sheet No.5
Unit Module
Perform Mensuration and Calculation Performing Mensuration and Calculation
USE OF DIAL INDICATORS
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Activity Sheet No. 6
Unit Module
Perform Mensuration and Calculation Performing Mensuration and Calculation
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Self-Check 3-1.2
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Answer Key 1.a 1.b 1.c 1.d 1.e 1.f 1.g 1.h
13/32 inch 31/32 inch 1-7/16 inch 2- 1/32 inches 2-3/4 inches 3- 1/8 inches 3-15/32 inches 3- 13/16 inches
2.a. 4.5 mm 2.b 1.8 cm. 2.c 29 mm 2.d 4.0 cm 2.e 4.7 cm 2.f 55 mm 2.g 6.8 cm 2.h 77 mm 2.i 83mm 2.j 9.8 cm 3.a 3.b 3.c 3.d
1-3/4 inch 2-3/8 inches 1-3/8 inch 1-15/16 inch
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Qualifications
AUTOMOTIVE SERVICING NC II
Module Title
Performing Mensuration and Calculation
Learning Outcome
Maintain Measuring Instruments
Assessment Criteria
1. Measuring instruments are cleaned before and after using. 2. Measuring instruments are kept in safe dry place. 3. Proper techniques in using precise according to manufacturers standards.
instrument
4. Proper handlings of measuring instruments are observed in accordance with industry standards
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Automotive Servicing NC II
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Learning Experiences LO 3 Maintain measuring instrument Learning Activities
Special Instructions
Reading Activity 1(LO 3) Read: Operation Sheet 3 Undertake the Institutional Assessment Inform your Instructor that you for the Unit of Competency are ready to take the Institutional Assessment for this competency.
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Unit Module
Operation Sheet No. 3
Perform Mensuration and Calculation Performing Mensuration and calcualtion
MAINTAINING MEASURING INSTRUMENT Objectives: When you have completed the learning element you will be able to: Maintain measuring instrument Tools, Materials and Aids you will need 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14.
Multi tester Micrometer (in-out depth) Vernier caliper Dial gauge indicator Plastic gauge Straight edge Thickness gauge Torque wrench Small hole gauge Telescope gauge Tri square Protractor Combination gauge Steel rule
Pre-requisite Information Sheet:
Read manuals in maintaining measuring instrument
After reading and studying the learning materials, you are now ready to take maintain measuring instrument. Ask your trainer to provide you with the necessary hand tools, equipment and other needed material in doing your activities. In the given table you should follow the following maintaining measuring instrument.
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PREVENTIVE MAINTENANCE
Measuring Tools 1. Multi tester
Before Use Check up first
2. Micrometers
Check up first 3. Vernier caliper Check up first 4. Dial gauge Check up applicator first 5. Plastic gauge Check up first 6. Straight edge Check up first 7. Thickness gauge Check up first 8. Torque wrench Check up first 9. Small hole gauge Check up first 10. Telescope Check up Gauge first 11. Try square Check up first 12. Protractor Check up first 13. Combination Check up Gauge first 14. Steel rule Check up first
After Use Activities Clean the whole Return to parts and check if it proper place is already turned off Return to Must be clean proper place Return to Must be clean proper place Return to Must be clean proper place Return to Must be clean proper place Return to Must be clean proper place Return to Must be clean proper place Return to Must be clean proper place Return to Must be clean proper place Return to Must be clean proper place Return to Must be clean proper place Return to Must be clean proper place Return to Must be clean proper place Return to Must be clean proper place
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Institutional Assessment for Performing Mensuration and Calculation Element 1 Job 1
Module
Name: Element: Select Measuring Instruments Directions:
Perform Mensuration Calculation Performing Mensuration Calculation
Unit
Ask your instructor to assess your competencies of the critical performance listed below. You will be evaluated using the guide on the other side.
Date: Test Attempt: 1st
2nd
Level Achieved
3rd
Overall Evaluation
Can perform this skill without supervision and with adaptability to problem situations. Can perform this skill satisfactorily 3 without assistance and supervision. Can perform this skill satisfactorily 2 with some assistance and supervision Can perform part of this skill 1 satisfactorily with full assistance. 0 Cannot perform this skill Instructor will initial level achieved 4
1. Did the trainees identifies the types of measuring tools 2. Explain the function of measuring tolls 3. Know the importance of measuring tools in the automotive land transport sector. Average Rating
Performance Level Yes No N/A
Feedback: Areas for improvement: Strength: Trainee’s Signature:
Date:
Trainer’s Signature
Date: Document No.:
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Performance Level
Performance Standard
Automotive Servicing NC II
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Institutional Assessment for Carry Out Mensuration and Calculation Element 2 Job 2
Unit Module
Name: Element: Select Measuring Instruments Directions:
Ask your instructor to assess your competencies of the critical performance listed below. You will be evaluated using the guide on the other side.
Perform Calculation Performing Calculation
Mensuration Mensuration
Test Attempt: 1st
2nd
Level Achieved
Overall Evaluation
Can perform this skill without supervision and with adaptability to problem situations. Can perform this skill satisfactorily 3 without assistance and supervision. Can perform this skill satisfactorily 2 with some assistance and supervision Can perform part of this skill 1 satisfactorily with full assistance. 0 Cannot perform this skill Instructor will initial level achieved 4
Performance Level Yes No N/A
Feedback: Areas for improvement: Strength: Trainee’s Signature: Trainer’s Signature
Date: Date: Document No.:
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3rd
Performance Level
Did the trainees know to use filler gauge? Explain the procedure to use vernier caliper Identifies the parts of dial indicator and its functions. Perform to conduct compression testing Average Rating
Automotive Servicing NC II
and
Date:
Performance Standard 1. 2. 3. 4.
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Institutional Assessment for Carry Out Mensuration and Calculation Element 3 Job 3
Unit
Perform Mensuration and Calculation
Module
Performing Mensuration and Calculation
Name: Element: Select Measuring Instruments Directions:
Ask your instructor to assess your competencies of the critical performance listed below. You will be evaluated using the guide on the other side.
Date: Test Attempt: 1st
2nd
Performance Level Level Achieved
Overall Evaluation
Can perform this skill without supervision and with adaptability to problem situations. Can perform this skill satisfactorily 3 without assistance and supervision. Can perform this skill satisfactorily 2 with some assistance and supervision Can perform part of this skill 1 satisfactorily with full assistance. 0 Cannot perform this skill Instructor will initial level achieved 4
Performance Level Yes No N/A
Performance Standard 1. Perform cleaning. 2. Identifies tools to be cleaned. 3. Apply maintenance procedure.
Average Rating
Feedback: Areas for improvement: Strength: Trainee’s Signature: Trainer’s Signature
Date: Date:
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Sector: Qualification: Unit of Competency: Module Title:
Automotive Servicing NC II Perform Mensuration and Calculation Performing Mensuration and Calculation
Republic of the Philippines Technical Education and Skills Development Authority Provincial Training Center Valencia City, Bukidnon
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. Document No.:
TESDA PTC Bukidnon
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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.
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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QUALIFICATION : Automotive Servicing NC II UNIT OF COMPETENCY : Perform Mensuration And Calculation MODULE TITLE : PERFORMING MENSURATION AND CALCULATION
INTRODUCTION: 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. Learning Outcomes LO 1
Select measuring instrument.
LO 2
Carry out measurement and calculations.
LO 3
Maintain measuring instruments.
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. 4. Measuring tools are selected in line with job requirements. Document No.:
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5. Accurate measurements are obtained. 6. Calculations needed to complete work/task are performed using the four fundamental operation of mathematics. 7. Numerical computation checked is correct and accurate. 8. Measuring instruments are cleaned before and after using. 9. Measuring instruments are kept in safe dry place. 10. Proper techniques in using precise instrument according to manufacturers standards. 11. Proper handlings of measuring instruments are observed in accordance with industry standards.
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QUALIFICATION : Automotive Servicing NC II UNIT OF COMPETENCY : Perform Mensuration And Calculation MODULE TITLE : PERFORMING MENSURATION AND CALCULATION Learning Outcome #1 Learning Contents:
:
Select Measuring Instrument
1. Perform correct check-up procedures performed based on vehicle manufacturer’s standard
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.
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Automotive Servicing NC II
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Learning Experiences LO 1 Select Measuring Instrument Learning Activities
Special Instructions
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 Sheet 3-1.1
JOB SAFETY Some people say accidents will happen! But safety experts disagree. They say accidents are caused. They are caused by careless actions. They are caused by inattention to the job and they caused by using damaged or incorrect tools. Fewer accidents occur in shops that are neat and clean. Trainees in Automotive Serving should posses an instinct of willingness to undergo common competencies especially in performing mensuration and calculation as it answer the urgent needs and demand of many industries. Being able to measure accurately is one of the most important skills a Technician can cultivate in Automotive and Land Transport Sector. Measuring is very important in both troubleshooting and repair. Often, a measurement that is off by as little as 0.001 inch will keep a part from fitting properly and from operating satisfactorily. PURPOSE OF PERFORMING MENSURATION AND CALCULATION 1. To know the proper ways in performing mensuration and calculation. 2. To provide scientific solution to answer the needs of vehicle users and service technicians as well as the student. In connection to this approach, technicians and trainees must follow the standard and adopts self actualization behaviors towards determining faults and strictly follow procedures given by the manufacturers, including the summary of experience gathered from previous troubles in that particular unit of competencies and proper observing occupational health standard and safety. ELEMENTS OF PERFORMING MENSURATION AND CALCULATION 1. 2. 3. 4.
Understanding of mathematics symbols, signs and formulas. Knowledgeable in using measuring tools and instruments. Knowledgeable in using or reading mathematics chart. Knowledgeable in maintaining measuring instruments.
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Activity Sheet No. 1
Unit Module
Perform Mensuration and Calculation 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 3-1.1 Learn your mastery of learning outcome 1 by completing the questions below. Satisfactory Response
QUESTIONS
Yes
The trainee should answer the following questions. 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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No
Answer Key 3-1.1
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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QUALIFICATION : Automotive Servicing NC II UNIT OF COMPETENCY : Perform Mensuration And Calculation MODULE TITLE : PERFORMING MENSURATION AND CALCULATION Learning Outcome #2
:
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.
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Learning Experiences LO 2 Carry out measurement and calculation Learning Activities
Special Instructions
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 Sheet 3-1.2 Carry out Measurement 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. 2. 3. 4. 5. 6.
vernier caliper thickness gauge / feeler gauge ruler micrometers Telescoping Gauge 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. Document No.:
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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 Sheet No. 1
Unit Module
Perform Mensuration and Calculation Performing Mensuration and Calculation
Use the Telescoping Gauge
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Activity Sheet No. 2
Unit Module
Perform Mensuration and Calculation Performing Mensuration and Calculation
Check a torque wrench for accuracy
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Activity Sheet No.3
Unit Module
Perform Mensuration and Calculation Performing Mensuration and Calculation
USE VERNIER CALIPER TO TAKE INSIDE, OUTSIDE AND DEPTH MEASUREMENT
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Activity Sheet No.4
Unit Module
Perform Mensuration and Calculation Performing Mensuration and Calculation
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Activity Sheet No.5
Unit Module
Perform Mensuration and Calculation Performing Mensuration and Calculation
USE OF DIAL INDICATORS
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Activity Sheet No. 6
Unit Module
Perform Mensuration and Calculation Performing Mensuration and Calculation
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Self-Check 3-1.2
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Answer Key 1.a 1.b 1.c 1.d 1.e 1.f 1.g 1.h
13/32 inch 31/32 inch 1-7/16 inch 2- 1/32 inches 2-3/4 inches 3- 1/8 inches 3-15/32 inches 3- 13/16 inches
2.a. 4.5 mm 2.b 1.8 cm. 2.c 29 mm 2.d 4.0 cm 2.e 4.7 cm 2.f 55 mm 2.g 6.8 cm 2.h 77 mm 2.i 83mm 2.j 9.8 cm 3.a 3.b 3.c 3.d
1-3/4 inch 2-3/8 inches 1-3/8 inch 1-15/16 inch
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Qualifications
AUTOMOTIVE SERVICING NC II
Module Title
Performing Mensuration and Calculation
Learning Outcome
Maintain Measuring Instruments
Assessment Criteria
1. Measuring instruments are cleaned before and after using. 2. Measuring instruments are kept in safe dry place. 3. Proper techniques in using precise according to manufacturers standards.
instrument
4. Proper handlings of measuring instruments are observed in accordance with industry standards
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Learning Experiences LO 3 Maintain measuring instrument Learning Activities
Special Instructions
Reading Activity 1(LO 3) Read: Operation Sheet 3 Undertake the Institutional Assessment Inform your Instructor that you for the Unit of Competency are ready to take the Institutional Assessment for this competency.
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Unit Module
Operation Sheet No. 3
Perform Mensuration and Calculation Performing Mensuration and calcualtion
MAINTAINING MEASURING INSTRUMENT Objectives: When you have completed the learning element you will be able to: Maintain measuring instrument Tools, Materials and Aids you will need 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14.
Multi tester Micrometer (in-out depth) Vernier caliper Dial gauge indicator Plastic gauge Straight edge Thickness gauge Torque wrench Small hole gauge Telescope gauge Tri square Protractor Combination gauge Steel rule
Pre-requisite Information Sheet:
Read manuals in maintaining measuring instrument
After reading and studying the learning materials, you are now ready to take maintain measuring instrument. Ask your trainer to provide you with the necessary hand tools, equipment and other needed material in doing your activities. In the given table you should follow the following maintaining measuring instrument.
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PREVENTIVE MAINTENANCE
Measuring Tools 1. Multi tester
Before Use Check up first
2. Micrometers
Check up first 3. Vernier caliper Check up first 4. Dial gauge Check up applicator first 5. Plastic gauge Check up first 6. Straight edge Check up first 7. Thickness gauge Check up first 8. Torque wrench Check up first 9. Small hole gauge Check up first 10. Telescope Check up Gauge first 11. Try square Check up first 12. Protractor Check up first 13. Combination Check up Gauge first 14. Steel rule Check up first
After Use Activities Clean the whole Return to parts and check if it proper place is already turned off Return to Must be clean proper place Return to Must be clean proper place Return to Must be clean proper place Return to Must be clean proper place Return to Must be clean proper place Return to Must be clean proper place Return to Must be clean proper place Return to Must be clean proper place Return to Must be clean proper place Return to Must be clean proper place Return to Must be clean proper place Return to Must be clean proper place Return to Must be clean proper place
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Institutional Assessment for Performing Mensuration and Calculation Element 1 Job 1
Module
Name: Element: Select Measuring Instruments Directions:
Perform Mensuration Calculation Performing Mensuration Calculation
Unit
Ask your instructor to assess your competencies of the critical performance listed below. You will be evaluated using the guide on the other side.
Date: Test Attempt: 1st
2nd
Level Achieved
3rd
Overall Evaluation
Can perform this skill without supervision and with adaptability to problem situations. Can perform this skill satisfactorily 3 without assistance and supervision. Can perform this skill satisfactorily 2 with some assistance and supervision Can perform part of this skill 1 satisfactorily with full assistance. 0 Cannot perform this skill Instructor will initial level achieved 4
1. Did the trainees identifies the types of measuring tools 2. Explain the function of measuring tolls 3. Know the importance of measuring tools in the automotive land transport sector. Average Rating
Performance Level Yes No N/A
Feedback: Areas for improvement: Strength: Trainee’s Signature:
Date:
Trainer’s Signature
Date: Document No.:
TESDA PTC Bukidnon
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Performance Level
Performance Standard
Automotive Servicing NC II
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Institutional Assessment for Carry Out Mensuration and Calculation Element 2 Job 2
Unit Module
Name: Element: Select Measuring Instruments Directions:
Ask your instructor to assess your competencies of the critical performance listed below. You will be evaluated using the guide on the other side.
Perform Calculation Performing Calculation
Mensuration Mensuration
Test Attempt: 1st
2nd
Level Achieved
Overall Evaluation
Can perform this skill without supervision and with adaptability to problem situations. Can perform this skill satisfactorily 3 without assistance and supervision. Can perform this skill satisfactorily 2 with some assistance and supervision Can perform part of this skill 1 satisfactorily with full assistance. 0 Cannot perform this skill Instructor will initial level achieved 4
Performance Level Yes No N/A
Feedback: Areas for improvement: Strength: Trainee’s Signature: Trainer’s Signature
Date: Date: Document No.:
TESDA PTC Bukidnon
3rd
Performance Level
Did the trainees know to use filler gauge? Explain the procedure to use vernier caliper Identifies the parts of dial indicator and its functions. Perform to conduct compression testing Average Rating
Automotive Servicing NC II
and
Date:
Performance Standard 1. 2. 3. 4.
and
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Institutional Assessment for Carry Out Mensuration and Calculation Element 3 Job 3
Unit
Perform Mensuration and Calculation
Module
Performing Mensuration and Calculation
Name: Element: Select Measuring Instruments Directions:
Ask your instructor to assess your competencies of the critical performance listed below. You will be evaluated using the guide on the other side.
Date: Test Attempt: 1st
2nd
Performance Level Level Achieved
Overall Evaluation
Can perform this skill without supervision and with adaptability to problem situations. Can perform this skill satisfactorily 3 without assistance and supervision. Can perform this skill satisfactorily 2 with some assistance and supervision Can perform part of this skill 1 satisfactorily with full assistance. 0 Cannot perform this skill Instructor will initial level achieved 4
Performance Level Yes No N/A
Performance Standard 1. Perform cleaning. 2. Identifies tools to be cleaned. 3. Apply maintenance procedure.
Average Rating
Feedback: Areas for improvement: Strength: Trainee’s Signature: Trainer’s Signature
Date: Date:
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