Auto-graded test questions should be written at the appropriate readability level for the target audience and assess the approved lesson/assessment objectives.
Plus courses should have at least one formative assessment per new concept/topic introduced.
Formative assessments are any form of test, quiz, or practice activity that is meant to gauge learners’ progress as they go through the course. Typically, formative assessments are non-graded and are used as a tool to measure whether the student is learning the material and meeting the lesson objectives.