It’s fairly straightforward to copy sets of Quiz questions between courses.
Start off in the Moodle course from which you would like to copy questions:
Click the Gear icon, then More. On the More page, click Export under the Question Bank heading.
Choose “Moodle XML format” and select the category you would like to copy from the “Export category” drop-down menu, then click the “Export questions to file” button.
Save the file to your local machine.
Go to the Moodle course to which you would like to copy the questions.
In the “Administration” block, click on “Import” in the “Question bank” menu.
Choose “Moodle XML format,” and make sure the “Default” course level category is chosen for the “Import category” drop-down menu.
Click “Choose file…” to open the “File picker” window.
In the “File picker” window, click “Choose File” to browse and select your exported Moodle questions file, then click “Upload this file.”
Click “Import,” and you will see a preview of the imported questions.
Click “Continue” to proceed to the category containing the imported questions.
NOTE: At this point, you have only copied the quiz questions, and must still create a new quiz and load in the copied questions.