Gradient, divergence and curl
Are you studying for a mathematics degree and in your sophomore year at university? If so this is the ideal quiz for you. It tests the basic principles of vector calculus.
Do you want to be an astrophysicist, a cosmologist or a research mathematician? If so this quiz gives you the basic foundations of your sphere of interest. I have composed each question in such a way that there is no complicated working out but the level tested is respectful in being very advanced.