Big thanks to all contributors and advisors in this group. I passed the TFS exam, 88 percentile. For engineers who are planning, this forum is a very good resource of getting advice. My quick tips for those who are planning to appear in next exam -
Concentrate on getting your concepts clear. Exam is not hard if your concepts are clear.
Once your concepts are clear next thing is practice. As time is limited, you need speed to solve problems in time.
Take your personal notes throughout your study. Organize them in a binder. It was a life saver for me.
I carried only four books to the exam -
Personal Notes Binder
Unit Conversion Book by Lindeburg
Steam Table by Keenan