(1) You have to perform experiments after learning the process demonstrated by the instructor. You have to carefully note down the intricate points told by the instructor and also you have to listen carefully to the theory involved in it.
(2) You are to make a neat and clean laboratory copy with signatures from your instructor after getting each experiment verified. Laboratory copy bears a good chunk of marks attached to it. This can be scored easily.
(3) For laboratory exams, you have to know to do the experiments along with the theories associated with the experiments. You should be able to answer the questions related to the theory and operations done throughout the experiment. Moreover, one should keep in mind that each laboratory is linked to a particular subject. Therefore, one should be able to answer the questions related to the subject. Sometimes, the invigilator may ask or may not. But, you should be ready for any contingencies.
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