Identify whether the given statements related to manholes are correct or incorrect.
Statements:
1. A manhole constructed on the main sewer along with steps for the workers to enter is called 'deep manhole'.
2. The sewage of the branch sewer is brought in the manhole of the main sewer through a down pipe is called 'drop manhole'.
1
Statement 1 is incorrect and Statement 2 is correct
2
Both statements are incorrect
3
Both statements are correct
4
Statement 1 is correct and Statement 2 is incorrect