Dear student,

As per my knowledge every university has their own pattern for conductance of class tests. In Nirma University class tests are of 30 marks with few chapters coming in the exams.The questions are not from outside ,they will ask whatever they have taught.So , you should score good marks to be on safer side.Moreover coming to your question class test may occur 2 in a single day only so its not about one test or two test in a week. It depends on the faculties designing the question papers and also the staffs conducting the test.So if you will be preparing in last minutes then it will be difficult for you.So learn side by side with your every day class. It will not give lot of impact on your final semester scores.

Hope it helps!