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Architectural drawings• Drawings that contain information about
the size, shape, and location of all parts of a house
• These drawings use lines, symbols, views and notes to convey specific ideas.
Scale (1/4” = 1’)• When a house is drawn to scale it is drawn
proportional to the actual house• Drawings are usually drawn at a scale of
¼” = 1’.
20. 3-way Switch
• Looks like a single switch
• Turns 1 light or 1 group of lights on and off from more than one location
Alphabet of lines: 7 different lines used on drawings to communicate meanings.
• Visible Line ___________________
• Phantom Line _______ __ __ _______
• Hidden Line __ __ __ __ __ __ __ __ __
• Center Line ______ _ ______ _ ______
• Dimension Lines 4 ½ “
• Break Line
• Section Line / / / / / / / / / / / / / / / / /
• Are there more symbols?– YES, but these are some of the basic symbols
you will need to use• Are symbols always drawn EXACTLY like
these?– NO, different architects will have some
variations, but they will be very similar.
Confusing Stuff on Your Test
• symbol for a climate control unit, such as a room air conditioner– Deep rectangle with "RAC" written inside
• electrical symbol for a ceiling fan – Circle with a capital F in the middle
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