Permanent modular construction tends to fit the construction purposes that it was specifically designed for.
I think it’s is false I’m not that sure
Explanation:
walls in a drawing of a floor plan — a thick dark line
duplex outlets (110 volts) in a drawing — a circle with two lines attached to the wall containing the outlet
a 220- to 240 volt outlet in a drawing — a circle with three bars
__
Consult your reference for standard drawing symbols.