This will also allow you more time to answer difficult questions. On the otherhand, correct answer to such question gets more marks compared to theoretical and general questions. First of all, note main points on a separate paper to help in covering all aspects of the answer. Divide the answers in paragraphs with sub-titles to each paragraph, if possible. Do not use abbreviations - give full names.
Time is of essence in the examination.
Therefore, plan a time budget for each answer in proportion to marks allotted. Wherever necessary, use charts, linear diagrams, formats or examples from real life to emphasise your view points. A diagram can present your views immediately as compared to many written words. Explain your assumptions by way of foot notes while solving practical problems, if necessary. While solving problems or practical questions, give the principle or formulate first and than proceed to solve it.