Thanks to the Techulator team who gives us cash for just asking our questions. If you just want to make money by this site than you must try to write articles, expert answers, you can also try to win the contests and many other awards announced on the site like MOW, member of the month, super contributors award and many more. You should not just think to make money by posting questions but if you want to get more cash than (Rs 2) on your questions than you must post interesting and attractive questions which can give you minimum 1000 visitors on your questions. If once your question gets 1000 visitors than you can request to the webmaster to award you with cash.
I hope it was useful for you.