A baby cow is called a calf. Adult male cows are called bulls. Adult female cows are called heifers until they give birth; after they have given birth, they are called cows.
As long as there is a fuel supply of natural gas or propane, a well-maintained backup generator will keep running. If the Generac generator is running on propane, with a 500-gallon tank, it should run 24 hours a day for over a week. How loud are they? Generac generators are very quiet.
Genera-tor output can begin at low rpm to keep the battery charged and supply power for theaccessories.This is done by placing a second set of brushes, field coils and pole shoes (mag-nets) inside of the generator. For all practical purposes, it is like two generators in thesame case.