A hydraulic power station has the following major items in the hydraulic circuit:
1. Draft tube
2. Runner
3. Guide wheel
4. Penstock
5. Scroll casing
The correct sequence of these items in the direction of flow is:
1
1, 3, 2, 4, 5
2
4, 2, 3, 1, 5
3
4, 3, 2, 5, 1
4
1, 2, 3, 5, 4