Rating Newest Oldest. Best Answer: Girt : A timber or plate connecting the corner posts of an exterior wooden frame, as a braced frame, at a floor above the ground floor. A heavy beam, as for supporting the ends of rafters. Purlin :
Figure Ground. Definition. Figure ground is a visual relationship between foreground and background. This is important to the perception of images, as the edges form the image that we see.
So what is meant by a floating ground is that it does not have a connection to the physical earth, so it's simply floating (not connected) relative to the earth. However, the floating ground serves as a 0V reference line. Ground also serves as a reference point in a circuit. It is a 0-volt line of reference.