Ganesh,

There are some good threads if you search for "BEM exam" or "BEMP" at
the bldg-sim archive here:
http://lists.onebuilding.org/pipermail/bldg-sim-onebuilding.org/

I took the first exam in January, and did an immediate brain-dump
afterward, so my recollection is sketchy. That being said, here are my
quick thoughts regarding your questions:
1. No ASHRAE Standard-specific questions.
2. You do not need to know Standard 140.
3. No questions regarding specific software packages.
4. I can not recommend a specific path for preparing. Energy modeling
and energy auditing experience is the best preparation.
5. I am not aware of any exam-specific resources, other than what
appears on the ASHRAE website. There were/are supposed to be BEM
workshops but I don't have further information.
The ASHRAE Fundamentals Ch. 19 "Energy Estimating and Modeling Methods"
has good info but is very dense/technical and soporific. The exam is
difficult, and really tests experience more than just smarts or
exam-preparation skills.

I copied this to the bldg-sim list so other exam takers can share their
experiences.

Best of luck,

William Bishop, PE, BEMP, LEED(r) AP