Canadian American RV Culture Difference

When camping in the states, we've learned to never ask for a "hydro" site, but rather an "electrical" site. In restaurants, we don't ask for "cutlery", but rather "silverware"

I've never heard the cutlery/silverware difference before. Just to be clear, which country says which?
As for 'Hydro', I noticed this when I first arrived in Canada, the buses in Vancouver were called 'Hydro buses'. When I asked people in work, why they were called that, no one knew!