length of wires in tension. diameter of wires in tension. height of support towers. length of the bridge.
I gave my students this multiple choice question: An engineer designing a suspension bridge discovers it will need to carry twice the load that was initially estimated. One change the engineer must make to her original design to maintain safety is to increase the

Only one answer is correct among these 4 choices:
- length of wires in tension.
- diameter of wires in tension.
- height of support towers.
- length of the bridge.

Could you tell me which one is correct?

diameter of wires in tension.