KNOWLEDGE TESTING DEVICE Russian patent published in 1998 - IPC

FIELD: electronic education equipment. SUBSTANCE: device has several student boards, transducers of shaft rotation angle to code, unit of two-position detectors, device control board, electric circuit for grade generation, information display, power supply. Electric circuit for grade generation is designed using logical functions for generation of A, B, C and D grades. Logical functions are composed and minimized according to laws of boolean algebra of 6 or other variables which are parts of three complex questions. Question parts are evaluated as 1, 2, 3, 4 or other score. Complex questions are evaluated as 5 other score. Each question part in test list has at least six alternative answers. Accumulated scores are used for indication of grade and reference material for wrong answers in digital indicator. Complexity of question parts depends on initial data which are used in definition of logical functions of electric circuits for calculation of grade. EFFECT: simplified design, increased functional capabilities. 19 dwg