Any company coming to campus for recruitment or even hiring on large number normally would have a written test before short-listing for interviews to save time. Written tests can compromise of many sections like reading comprehension, verbal-ability, analytical reasoning, and technical.

In this article I am going to explain how to tackle the technical test. Though this article will cover mostly computer science related issues, but with little change you can use it to your advantage:

1. A typical technical paper would consist of many sections like programming, algorithm, data-structures, networks and hardware. Try to solve as many problems from the section you are strong in.
2. Unless it is specifically told to attempt all the sections you should focus on your strong subject only. At the end of the exam even if your score is less then others but you have shown your hold in some area, there is a very good chance that you will make a good impression. Not to mention that if you had tried solving problems from other less comfortable section then you would have scored less mark.
3. If the questions are multiple choice type with negative marking then resist the temptation of making a guess. Generally the problems are tricky and falling into the trap of examiner is easy.
4. Isolate the problems you are comfortable with. Choose the problems you have seen before. Avoid solving large problems if the time is less.
5. Don't experiment. Follow the strategy you have decided for attempting the exam.
6. Write only what is asked. For example don't write a proper code when only algorithm or pseudo-code is asked. It won't fetch extra marks. It will only slow you down and can even show your errors.
7. Finally, if there is no negative marks then make intelligent guess. Observe the pattern of the question paper. Are most of the questions require an intelligent approach, or are they testing basic knowledge?.
8. Save atleast 5 minute to revise the paper. You will be amazed at the number of errors you can find in these 5 minutes.
   

Finally I would like to say that it pays to prepare before hand for the exams. So study hard and keep your calm. good luck !