I am the right person to answer this question as I have appeared and got selected in that exam. Yes, question paper of all the stream is same. It consist 150 questions in which 90-100 questions are from reasoning, aptitude and general awareness which is of good standard. Rest 50-60 questions consists of computer, electronics engineering, mechanical engineering and civil engineering. Questions from engineering branches are not difficult at all. Those are basic questions and you can also attempt questions from other branches which are basic questions. If you are good at maths, reasoning and your gk is good and have good knowledge of your domain you can easily crack the exam. For good score, you should read basic questions from other branches, deep study of topic is not required. It is very easy exam to crack. So, best of luck.