Which of the following is a correct statement with reference to determining reduced level of a point using rise and fall method?
1
If a staff reading (fore reading) is greater than that at the preceding point, then there is a fall and if smaller then there is a rise.
2
If reading of a preceding point is greater, then there is a fall.
3
If a staff reading (fore reading) is greater than that at the preceding point, then there is a rise.
4
If a staff reading (fore reading) is smaller than that at the preceding point, then there is a fall and if greater then there is a rise.