Example: Examination procedure for machine-tool worker
The objective of the qualification exam is to evaluate skills, knowledge and attitude of the applicant according to requirements of qualification standard. Basis for evaluation: requirements of qualification standard and procedure of awarding in I, II and III level of engineering, metal and machine industry. 1. GENERAL REGULATIONS 1.1 Certification exam consist of: - evaluation of knowledge (test) - assessment of practical skills practical work) - conversation (if needed)
1.2 Every part of examination is evaluated separately during examination. 1.3 Grading is performed in dual system: yes/no. 1.4 Exam begins with test. Applicant selects from multiple answers the correct answer and/or adds additional explanation. 1.5 Test result over 50% is the precondition to continue with practical work part. 1.6 The trial practical work is passed when it meets the requirements of technical drawing and at the same time evaluations for working culture and safety are positive.
2. EVALUATION OF KNOWLEDGE 2.1 Examination commission evaluates the level of applicant's knowledge according to basic knowledge.
Basic knowledge | Criteria | According to test | will be graded: yes/no |
2.2 Structure of test:
Field of knowledge | Paragraph of qualification standard | Content and objective of the test | 1. Materials | 6.2.2 | Properties, indication | 2. Machining principles | 6.2.3 | Characterisation of different fields of machining | 3. Cutting theory | 6.2.8 | Cutting forces, speed | 4. Tolerance | 6.2.4 | On the technical drawing | 5. Use of measuring devices | 6.2.7 | Selection and use | 6. Machine tools | 6.2.5 | About the current machine tool | 7. Technical documentation | 6.2.13 | According to current drawing | 8. Typical technological processes | 6.2.9 | According to machining field | 9. Cutting tools | 6.2.11 | According to practical task |
2.3 According the p 22 structure will be created a questionnaire:
Example Question | Paragraph of qualification standard | Comment | 1. What is cast iron: properties, machinability? | 6.2.2 | | 2. Milling: machine tool, cutter, setup of workplace, fixation | 6.2.3 | | 3. When the flowing chip is formed? (material, cutting speed) | 6.2.8 | | 4. Toleration of shaft/hole to enable pressure fit | 6.2.4 | | 5. Selection of measuring device for measurement of cylindrical part Ø 20+0,042 mm | 6.2.7 | | 6. Machine tool gearbox: set of rotation speeds | 6.2.5 | | 7. Reading of technical documentation | 6.2.13 | Drawing | 8. Operations for making stepped shaft (starting from selection of work piece) | 6.2.9 | | 9. Measuring of geometrical parameters of turning tool | 6.2.11 | |
2.4 Test time is 30 minutes.
3. ASSESSMENT OF PRACTICAL SKILLS 3.1 TASK: manufacture a product according to technical drawings 3.2 Means: - Machine tool (having full registry) - Material - Set of cutting tools, from which the applicant selects the appropriate - Set of measuring devices (verified), from which the applicant selects the appropriate - Accessories, according to the task - General safety means
3.3 Before starting: - safety regulations will be introduced to the applicant - applicant introduces to the commission technological preparation methodology (selection of tools, setting up cutting parameters, adjusting the machine tool, safe use of machine tool).
3.4 Work clothes are not provided by examination commission 3.5 Time: for the practical task will be set a control time. In addition to that are added preparatory and finishing time up to 15 min. 3.6 Evaluation: Applicant measures the machined part and fills the table. Commission evaluates the precision of machining, surface quality, time, working culture and meeting safety requirements. Practical work must meet the requirements. Parameter | Grade | Comment | Dimensions | | | Surface roughness | | | Time | | | Assessment | | |
3.7 In violation of safety and work culture requirements the examination commission can cancel the evaluation of practical work.
Evaluation of working culture, safety and personal identities. Parameter | Grade | Comment | Working culture - preparation of working place - tricks of work - working place after finishing | | during practical work by survey is graded yes/no | Safety -health service -fire safety -electric safety -waste management -first aid | | during practical work by survey is graded yes/no | | Personal identities - logical thinking - visual memory - sense of space - concentration ability - coordination - adaptability - independence - decision-making - team working - alacrity to learn - sense of duty | | during practical work by survey is graded yes/no | | | | | | |
3.8 The examination commission specifies the judgement during conversation if needed.
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