That is not what happens in any open book test I have ever taken. Ever. Nor do I know of any professor who writes tests like that. Not one. Open book tests are usually harder, because the book can't help you. I have had exam questions that literally required inventing a completely new product to solve the need posed by the question using the principles described in the book. It is as if one had learned about transistors and was asked to use them to design a radio to meet specifications. I actually had an exam question that expected the students to invent Dolby as a noise reduction technique, knowing what they did about mathematical transfer functions.
In other words, you are completely clueless about typical open-book examinations in technical college courses. Stick with reporting, but I suggest you start with facts.
Well I tried. Best of luck with them unicorns.