Question

Statement given below is incorrect. Write the correct statement

The girders supporting the bridge are fixed in the walls of the pillars.

Answer 1

1. The girders used to support the bridges will expand on heating and contract on cooling.
2. If the girders are attached to the walls of the pillars, the walls will get damaged because of the expansion and contraction of the girders.
3. The girders are fixed on the rollers leaving a small space in between for expansion or contraction.
4. Hence the correct statement is: The girders supporting the bridge are not fixed in the walls of the pillars.