You can delete quizzes from your course.
Note: Deleting a quiz will remove it completely from your course. If you would rather hide the quiz or make it inaccessible to submissions, you can lock the quiz or modify the access dates. If the quiz has no student submissions, you can unpublish the quiz.
Click the Quizzes link.
If you are editing the settings of an existing quiz, click the quiz title to open the quiz [1]. If you want to delete the entire quiz, , then click Trash icon [2].
You can also visit the quiz page, click the Settings icon [1], and select the Delete link [2].
A pop-up window will appear in your browser. Click OK to delete the quiz or Cancel to edit your quiz in another manner.
Note: Deleting a quiz will remove it completely from your course. If you would rather hide the quiz or make it inaccessible to submissions, you can lock the quiz or modify the access dates. If the quiz has no student submissions, you can unpublish the quiz.