--------------------------------------------------------------------------------

When running a water boiler pipe through a floor what is the minimum distance the pipe must go thu the floor and what is the minimum clearance around the pipe?

I would like to suggest these manuals. Read and study before the test.

Ohio OCILB Hydronics Exam Books (http://www.123supply.com/ohochyexbo.html)


Also check this out

https://www.prometric.com/NR/rdonlyres/eze3e57g5snlrvnojepqzirgbhwhr25cqn342kpad3x4dr5jw3 m2k7j2dugp7onvi25uzu5zodoxgbpdfnw7x7qoyxh/OHContractorCIB20090213FINAL.pdf