Try all ten questions before reading the explanations.

11. Which structure is on Godavari?

A. Prakasam Barrage B. Dowleswaram Barrage C. Somasila Dam D. Pulichintala

Answer B. Dowleswaram diverts Godavari water into delta canals.

12. Prakasam Barrage is on the...

A. Godavari B. Krishna C. Penna D. Nagavali

Answer B. It is on Krishna at Vijayawada.

13. Which is the correct Krishna downstream order?

A. Prakasam-Pulichintala-Srisailam B. Srisailam-Nagarjuna Sagar-Pulichintala-Prakasam C. Nagarjuna Sagar-Srisailam-Prakasam D. Pulichintala-Srisailam-Prakasam

Answer B. This is the broad upstream-to-delta sequence.

14. Somasila Dam is associated with the...

A. Penna B. Godavari C. Vamsadhara D. Nagavali

Answer A. The official Nellore district page places Somasila on Penna.

15. Gotta Barrage is associated with...

A. Vamsadhara B. Krishna C. Penna D. Godavari

Answer A. Gotta is part of the Vamsadhara irrigation system.

16. A barrage mainly helps by...

A. creating a mountain B. raising river level for regulated diversion C. forming a new river basin D. moving a port

Answer B. Its gates control river level and diversion; it is not the same as a large storage dam.

17. Which project lies on the Godavari upstream of its delta?

A. Polavaram B. Pulichintala C. Somasila D. Thotapalli

Answer A. Polavaram is on the Godavari before the lower delta reach.

18. Pulichintala is downstream of...

A. Prakasam Barrage B. Nagarjuna Sagar C. Kolleru D. Pulicat

Answer B. It lies between Nagarjuna Sagar and Prakasam Barrage on Krishna.

19. Which name is a water-conveyance scheme, not a natural river?

A. Nagavali B. Handri-Neeva C. Vamsadhara D. Penna

Answer B. HNSS uses lifts and canals to convey water.

20. In irrigation reports, ayacut refers to...

A. a port berth B. an irrigable command area C. a cyclone path D. a distributary mouth

Answer B. It describes land intended or eligible to receive project irrigation.