Answer
This kind of question you should ask of yourself, because it's not a matter of what I want to do, it's what you want. Take a pen and paper. Write down your goals for the next 5 years, where you need improvement or you need to learn something so you can expand your horizions then do it. You only can win in this kind of situation.
btech(ccc) mech previous question papers
general proficiency in b.tech is useful for the students because increases the student's confidence.
Yes it is distributed by the HEAD DEAN, if you apply a Test Paper Application.
Most professors who work at Engineering colleges are MCA, ME degree holders...
Providing you with the answer key is cheating and Wiki will not help you cheat. Time for you to get to work.