Q. Steel sleepers are (Solved)
1. rectangular is cross section throughout
2. hollow circular pipes
3. 6 mm thick steel sheets with ends bent down
4. 6 mm thick steel sheets with ends bent up
- c. 6 mm thick steel sheets with ends bent down
1. rectangular is cross section throughout
2. hollow circular pipes
3. 6 mm thick steel sheets with ends bent down
4. 6 mm thick steel sheets with ends bent up