Compared with a solid steel bar having a rectangular cross-section, an I-beam has the advantage of
A)being lighter.
B)being stronger per bodyweight.
C)both of these
D)neither of these

Question

Quizplus · Accepted Answer

An I-beam is lighter than a solid steel bar with a rectangular cross-section because it has a hollow center. Additionally, due to its unique shape, an I-beam is stronger per bodyweight as it distributes the load more effectively along its length. Therefore, both options A and B are correct.

Compared with a Solid Steel Bar Having a Rectangular Cross-Section