Q. To reduce the wearing of rails, the rails are placed at an (Solved)
1. inward slope of 1 in 20
2. outward slope of 1 in 20
3. inward slope of 1 in 30
4. outward slope of 1 in 30
- a. inward slope of 1 in 20
1. inward slope of 1 in 20
2. outward slope of 1 in 20
3. inward slope of 1 in 30
4. outward slope of 1 in 30