Vocational secondary school (SMK) is an education at intermediate level that prioritizes the development of student skills. The skills possessed are the result of learning in school as well as in industry. Industrial world plays an important role in the learning process in SMK, namely by working together in the implementation of industrial practices. Industrial practice for vocational school students is a place to apply the knowledge that has been obtained in school. Students will also gain new knowledge in the industry, as they learn in real conditions with real working atmosphere. Completed carrying out industrial practices students will be busy a variety of activities that must be implemented for graduation. Vocational high school students are graduated if they successfully complete the School Exam, National Examination and Student Competency Test. The student competency test is conducted in accordance with the competence of the expertise and is carried out before the national examination. According to Joko Sutrisno which is contained in the competency test guide from DP SMK, the purpose of competence test is as an indicator of the achievement of graduate competency standard, while for the stakeholder competency test is used as information on the competence of the prospective worker. Students are said to have passed the competency test if they have conducted competency competency test including competence test and the theory competence test. The theory competence test is used to measure students 'knowledge and understanding, while the competence test practice serves to measure students' ability. Percentage of practice competence test score is 70% and theoretical competence test is 30%. According to the National Education Standards Board, the overall score that must be obtained by students to pass the competency test is at least 6.0. Implementation of competency test must meet equipment and equipment standard from DP SMK so that there is no problem during execution of test. One of the equipment that must be fulfilled in the implementation of the
