im being moved to the Pre-Load and i have a few questions. 1. "Report any conditions requiring attention on the DEC R" -what is the DEC R? 2. "Inspect under all metro gathering conveyors, vestibule, MDC and PDC units" -what are MDC and PDC units? 3. it says in the booklet that my sup gave me, only to load over 70's on the floor in the rear of the truck, but when i have worked in the Pre-Load in the past, i was told and showed to load them only on the floor(anywhere). am i allowed to load them on the floor in the front of the truck(not in the cab, of course)? what about long over 70's, like heavy carpet rolls? 4. when i take the pre-load test, what kind of questions should i expect? thank you.