Quiz Maker Portable

I was paid by an educational institute to find an open source exam product for them. After downloading and installing all the ones here and on GitHub, i can safely say the only one that is commercial grade and has the feature set you likely require is QST. All the others have not been updated for many years, do not answer support questions, lack many basic expected features or are feature crippled versions of someones commercial product they are instead trying to sell you. Save yourself the time and effort and try QST before any other solution.