Mechanical Technology PAT GR 12 2020 (Fitting and Machining) Eng

Downloaded from hlayiso.com MECHANICAL TECHNOLOGY (FITTING AND MACHINING) GUIDELINES FOR PRACTICAL ASSESSMENT TASKS GRADE 12 2020 These guidelines consist of 20 pages. Copyright reserved Please turn over

Downloaded from hlayiso.com Mechanical Technology: Fitting and Machining 2 DBE/PAT 2020 NSC TABLE OF CONTENT PAGE 1. INTRODUCTION/BACKGROUND 3 2. TEACHER GUIDELINES 4 2.1 Administration of PAT 4 2.2 Assessment of PAT 4 2.3 Moderation of PAT 4 2.4 Consequences of absence/non-submission of tasks 4 2.5 Declaration of authenticity 5 3. LEARNER GUIDELINES 6 Instructions to the learner 6 4. SPECIALISATION 7 FITTING AND MACHINING 7 5. CONCLUSION 20 Copyright reserved Please turn over

Downloaded from hlayiso.com Mechanical Technology: Fitting and Machining 3 DBE/PAT 2020 NSC 1. INTRODUCTION/BACKGROUND The 17 Curriculum and Assessment Policy Statements subjects which contain a practical component all include a practical assessment task (PAT). These subjects are:  AGRICULTURE: Agricultural Management Practices, Agricultural Technology  ARTS: Dance Studies, Design, Dramatic Arts, Music, Visual Arts  SCIENCES: Computer Applications Technology, Information Technology, Technical Sciences  SERVICES: Consumer Studies, Hospitality Studies, Tourism  TECHNOLOGY: MECHANICALTECHNOLOGY, Civil Technology, Electrical Technology, and Engineering Graphics and Design A practical assessment task (PAT) mark is a compulsory component of the final promotion mark for all candidates offering subjects that have a practical component and counts 25% (100 marks) of the end-of-year examination mark. The PAT is implemented across the first three terms of the school year. This is broken down into different phases or a series of smaller activities that make up the PAT. The PAT allows for learners to be assessed on a regular basis during the school year and it also allows for the assessment of skills that cannot be assessed in a written format, e.g. test or examination. It is therefore important that schools ensure that all learners complete the practical assessment tasks within the stipulated period to ensure that learners are resulted at the end of the school year. The planning and execution of the PAT differs from subject to subject. The PAT allows the teacher to directly and systematically observe applied competence. The PAT comprises the application/performance of the knowledge, skills and values particular to that subject and counts 25% of the total promotion/certification mark out of 400 for the subject. The PAT is implemented across the first three terms of the school year. Any profession requires of its members a thorough grounding in both theory and practice and MECHANICAL TECHNOLOGY is no exception. It is emphasized that the goal of the practical assessment task is to produce a skilled learner in each specialisation field. A nation's true wealth is in its manpower and education that should aim to develop the talents of a learner so that he/she can contribute to the well-being of the society by using and developing scientific and technological resources. To prepare a learner in MECHANICAL TECHNOLOGY'S specialisation fields, one must focus on the following:  An attitude where the learner can selectively use ideas, gather evidence and facts, to drawing logical conclusions to put them to good use creatively and with imagination;  A capability to express ideas and information clearly by speech, writing, drawing and manufacturing and  A willingness and capability to accept and exercise responsibility, to make decisions, and to learn by experience. Attributes such as these cannot all be achieved in a classroom. A sound knowledge of engineering sciences is essential to equip the MECHANICAL TECHNOLOGY learner with the necessary practical capabilities for the required processes. Practical training is the application of acquiring essential skills to bridge between trade theory and practice. Practical application in the workshop must therefore be made an interesting and challenging experience to develop the learner physically and mentally. The learner must show his/her initiative, curiosity and persistence in learning. In order to stimulate and develop self- confidence the granting of some degree of responsibility during the practical application is very important. Copyright reserved Please turn over

Downloaded from hlayiso.com Mechanical Technology: Fitting and Machining 4 DBE/PAT 2020 NSC 2. TEACHER GUIDELINES 2.1 Administration of the PAT Teachers are requested to make copies of the different specialisation PAT documents. These documents need to be handed out to the learners at the beginning of the year. The Practical Assessment Task for Grade 12 is externally set, internally assessed and externally moderated. Teachers must attach due dates for the different facets of the PAT (refer to the CAPS document). In this manner, learners can easily assess their progress. Instances where formal assessments take place, it is the responsibility of the teacher to administer assessment. The PAT should be completed within the first three terms. The PAT should be completed under controlled conditions (refer to Mechanical Technology SPECIALISATION: CAPS Grade 10–12). 2.2 Assessment of PAT Frequent and developmental feedback is needed to ensure necessary guidance and support to the learner. Both formal and informal assessment should be conducted to ensure that the embedded skills are developed. Informal assessment can be conducted only to monitor progress of the learner. Formal assessment should always be conducted and recorded by the teacher. 2.3 Moderation of PAT The tasks, projects, assessment criteria as well as the mark sheets must be presented to the moderator during moderation of the PAT. The moderator should be able to call on a learner to explain and demonstrate the functions, principles and skills during the moderation purposes. On completion the moderator will, if necessary, adjust the marks of the group up or downwards depending on the decision reached as a result of moderation. 2.4 Consequences of absence/non-submission of tasks. If a learners' practical assessment task is incomplete or unavailable with valid reason, the learner may be given three weeks before the commencement of the final end-of-year examination to submit the outstanding task. Should the learner fail to fulfill the outstanding PAT requirement, such a learner will be awarded a zero mark for that PAT component. A learner's results are regarded as incomplete if he/she does not offer any component of the PAT task. He/She will be given another opportunity based on the decision of the head of the assessment body. Should the learner fail to fulfill the outstanding PAT requirement, the marks for these components will be omitted and the final mark for Mechanical Technology Copyright reserved Please turn over

Downloaded from hlayiso.com Mechanical Technology: Fitting and Machining 5 DBE/PAT 2020 NSC 2.5 Declaration of Authenticity NAME OF THE SCHOOL: NAME OF LEARNER: (FULL NAME(S) AND SURNAME) NAME OF TEACHER: I hereby declare that the project submitted for assessment is my own, original work and has not been previously submitted for moderation. SIGNATURE OF CANDIDATE DATE As far as I know, the above declaration by the candidate is true and I accept that the work offered is his or her own. SIGNATURE OF TEACHER DATE SCHOOL STAMP Copyright reserved Please turn over

Downloaded from hlayiso.com Mechanical Technology: Fitting and Machining 6 DBE/PAT 2020 NSC 3. LEARNER GUIDELINES Instructions to the learner  The practical assessment task (PAT) consists of a specialisation task in Fitting and Machining. The practical work is spread over three terms, as set out in this document. (See CAPS document.)  All tasks must be completed according to the time frames set out in each of the tasks.  Learners are requested to actively engage in all practical assessment tasks.  Learners who are uncooperative will receive demerits or a zero mark for that particular section of the work.  Learners who act unsafely in the workshop and place other learners in danger, will be given additional corrective tasks to improve their safety awareness. Copyright reserved Please turn over

Downloaded from hlayiso.com Mechanical Technology: Fitting and Machining 7 DBE/PAT 2020 NSC 4. FITTING AND MACHINING (SPECIFIC) TASK: BENCH VICE Term: 1 to 3 Start date: January 2020 Completion date: August 2020 The following standards must be achieved:  All sizes must be within the given tolerance.  There must be no damage to tools and equipment.  All appropriate safety procedures must be adhered to.  The project must be well presented. RESOURCES REQUIRED FOR PAT: Consumable materials required per learner Quantity per No. of Total Part Material Dimensions learner learner quantity Mild steel Fixed jaw 86 x 70 x 12 1 70 x 12 flat bar Mild steel Moving jaw 86 x 70 x 12 1 70 x 12 flat bar Mild steel Jaw linings 74 x 20 x 8 2 20 x 8 flat bar Bright mild steel Guide pins 120 x 12 2 12 mm round bar Bright mild steel Screw 145 x 20 1 20 mm round bar Bright mild steel Handle 120 x 12 1 12 mm round bar Mild steel Base ± 100 x 70 1 70 x 12 flat bar NOTE: This material list is NOT a cutting list. The teacher must determine and create the cutting list. Copyright reserved Please turn over

Downloaded from hlayiso.com Mechanical Technology: Fitting and Machining 8 DBE/PAT 2020 NSC FIGURE 1: FIXED JAW FIGURE 2: MOVING JAW Copyright reserved Please turn over

Downloaded from hlayiso.com Mechanical Technology: Fitting and Machining 9 DBE/PAT 2020 NSC FIGURE 3: JAW LININGS FIGURE 4: GUIDE PINS FIGURE 5: SCREW Copyright reserved Please turn over

Downloaded from hlayiso.com Mechanical Technology: Fitting and Machining 10 DBE/PAT 2020 NSC FIGURE 6: HANDLE FIGURE 7: BASE Copyright reserved Please turn over

Downloaded from hlayiso.com Mechanical Technology: Fitting and Machining 11 DBE/PAT 2020 NSC NOTE: On all the diameters learners will lose 1 mark for every 0,1 mm deviation from the basic size and on all the lengths learners will lose 1 mark for every 0,5 mm deviation from the basic size. (See tables A and B) Marking DIAMETERS: DEVIATION MARK DEDUCTIONS 0–0,1 -0 0,1–0,2 -1 0,2–0,3 -2 0,3–0,4 -3 0,4–0,5 -4 0,5 and more -5 TABLE A Marking LENGTHS: DEVIATION MARK DEDUCTIONS 0–0,5 -0 0,5–1,0 -1 1,0–1,5 -2 1,5–2,0 -3 2,0–2,5 -4 3,0 and more -5 TABLE B Copyright reserved Please turn over

Downloaded from hlayiso.com Mechanical Technology: Fitting and Machining 12 DBE/PAT 2020 NSC MECHANICAL TECHNOLOGY FITTING AND MACHINING MARK SHEET – FIXED JAW (FIGURE 1) GRADE 12 DATE PROJECT BENCH VICE LEARNERS M A FACETS R K S 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 86 length 5 16 x 4 step 10 M6 tapping 10 10 mm holes 5 M12 tapping 10 45° milling 5 Finish 5 TOTAL 50 SIGNATURE OF TEACHER SIGNATURE OF SUBJECT HEAD Copyright reserved Please turn over

Downloaded from hlayiso.com Mechanical Technology: Fitting and Machining 13 DBE/PAT 2020 NSC MECHANICAL TECHNOLOGY FITTING AND MACHINING MARK SHEET – MOVING JAW (FIGURE 2) GRADE 12 DATE PROJECT BENCH VICE LEARNERS M A FACETS R K S 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 86 length 5 16 x 4 step 10 M6 tapping 10 M10 tapping 10 12 mm hole 5 45° milling 5 Finish 5 TOTAL 50 SIGNATURE OF TEACHER SIGNATURE OF SUBJECT HEAD Copyright reserved Please turn over

Downloaded from hlayiso.com Mechanical Technology: Fitting and Machining 14 DBE/PAT 2020 NSC MECHANICAL TECHNOLOGY FITTING AND MACHINING MARK SHEET – JAW LININGS (FIGURE 3) GRADE 12 DATE PROJECT BENCH VICE LEARNERS M A FACETS R K S 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 74 length 5 M6 tapping 5 Counter sink 5 Clamp surfaces 5 Finish 5 TOTAL 25 SIGNATURE OF TEACHER SIGNATURE OF SUBJECT HEAD Copyright reserved Please turn over

Downloaded from hlayiso.com Mechanical Technology: Fitting and Machining 15 DBE/PAT 2020 NSC MECHANICAL TECHNOLOGY FITTING AND MACHINING MARK SHEET – GUIDE PINS (FIGURE 4) GRADE 12 DATE PROJECT BENCH VICE LEARNERS M A FACETS R K S 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 120 x 10 10 M10 screw thread 5 Finish 5 TOTAL 20 SIGNATURE OF TEACHER SIGNATURE OF SUBJECT HEAD Copyright reserved Please turn over

Downloaded from hlayiso.com Mechanical Technology: Fitting and Machining 16 DBE/PAT 2020 NSC MECHANICAL TECHNOLOGY FITTING AND MACHINING MARK SHEET – SCREW (FIGURE 5) GRADE 12 DATE PROJECT BENCH VICE LEARNERS M A FACETS R K S 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 145 length 5 25 length 5 120 x 12 10 M 12 screw thread 15 3 mm hole 5 8 mm hole 5 Finish 5 TOTAL 50 SIGNATURE OF TEACHER SIGNATURE OF SUBJECT HEAD Copyright reserved Please turn over

Downloaded from hlayiso.com Mechanical Technology: Fitting and Machining 17 DBE/PAT 2020 NSC MECHANICAL TECHNOLOGY FITTING AND MACHINING MARK SHEET – HANDLE (FIGURE 6) GRADE 12 DATE PROJECT BENCH VICE LEARNERS M A FACETS R K S 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 108 x 8 mm 5 length M8 screw thread 5 12 mm cap length 5 Finish 5 TOTAL 20 SIGNATURE OF TEACHER SIGNATURE OF SUBJECT HEAD Copyright reserved Please turn over

Downloaded from hlayiso.com Mechanical Technology: Fitting and Machining 18 DBE/PAT 2020 NSC MECHANICAL TECHNOLOGY FITTING AND MACHINING MARK SHEET – BASE (FIGURE 7) GRADE 12 DATE PROJECT BENCH VICE LEARNERS M A FACETS R K S 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Design 5 Accuracy 10 Finish 5 TOTAL 20 SIGNATURE OF TEACHER SIGNATURE OF SUBJECT HEAD Copyright reserved Please turn over

Downloaded from hlayiso.com Mechanical Technology: Fitting and Machinery 19 DBE/PAT 2020 NSC MECHANICAL TECHNOLOGY FITTING AND MACHINING MARK SHEET – ASSEMBLY AND TOTALS GRADE 12 DATE PROJECT BENCH VICE LEARNERS M A FACETS R K S 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Safety 5 Assembly 5 Presentation 5 TOTAL 15 TOTALS FIXED JAW 50 MOVING JAW 50 JAW LININGS 25 GUIDE PINS 20 SCREW 50 HANDLE 20 BASE 20 ASSEMBLY 15 TOTAL 250 Total PAT Mark 100 SIGNATURE OF TEACHER SIGNATURE OF SUBJECT HEAD Copyright reserved Please turn over

Downloaded from hlayiso.com Mechanical Technology: Fitting and Machining 20 DBE/PAT 2020 NSC 5. CONCLUSION On completion of the practical assessment task learners should be able to demonstrate their understanding of the industry, enhance their knowledge, skills, values and reasoning abilities as well as establish connections to life outside the classroom and address real-world challenges. The PAT furthermore develops learners' life skills and provides opportunities for learners to engage in their own learning. Copyright reserved