20. this structural shape is called a\na l channel or angle bracket\nb c channel\nc flat plate\nd i beam
20. this structural shape is called a\na l channel or angle bracket\nb c channel\nc flat plate\nd i beam
Answer
Brief Explanations:
The shape shown has a cross - section in the form of a 'C'. An L - channel has an 'L' shaped cross - section, a flat plate is flat and not channel - like, and an I - beam has an 'I' shaped cross - section. A C channel has the depicted cross - sectional shape.
Answer:
B. C channel