The South Indian Rivers

11. Which of the following rivers does not falls into the A Bay of Bengal? [Uttarakhand P.C.S. (Pre) 2006]

(a) Mahanadi
(b) Krishna
(c) Tapti
(d) Godavari

Correct Answer: (c) Tapti

Solution:The west flowing rivers like Narmada and Tapti etc. do not form delta rather they make estuary. Due to their flow through rift valley and high speed, there is little silt in these rivers. Therefore, they do not make delta at their mouth.

12. Which of the following rivers passes through a rift valley? [U.P.U.D.A./L.D.A. (Pre) 2013]

(a) Krishna
(b) Godavari
(c) Tapi
(d) Cauvery

Correct Answer: (c) Tapi

Solution:The Tapi river passes through the rift valley. The river originates at Multai in Betul district in the Satpura Mountain Ranges in Madhya Pradesh. The river flows through the states of Maharashtra, Madhya Pradesh, Gujarat and falls into the Arabian Sea.

13. Assertion (A): The Narmada forms a delta at its ZOALM mouth. [U.P.P.C.S. (Mains) 2005]

Reason (R) : It flows through a rift valley.

Select the correct answer from the codes given below:

Code:

(a) Both (A) and (R) are true, and (R) is the correct explanation of (A)
(b) Both (A) and (R) are true, but (R) is not the correct explanation of (A)
(c) (A) is true, but (R) is false
(d) (A) is false, but (R) is true

Correct Answer: (d) (A) is false, but (R) is true

Solution:The Narmada river does not form the delta at its mouth. This is because it flows through the rift valley and does not deposit silt. It is one of the rivers that flow in a rift valley and acts as a divider between north India and south India. These rift valleys are the result of the faulting that took place when the northern flank of the Peninsula suffered subsidence. The main tributaries of Narmada River namely, Hallon River, Banjar River, Barna River, and Tawa River are the main source of water, irrigation and other resource-based activities in central India. The Tawa River is the longest tributary of the Narmada River.

14. The river which flows through a fault trough, is: [44th B.P.S.C. (Pre) 2000, U.P.P.C.S (Pre) 2010]

(a) Narmada
(b) Brahmaputra
(c) Ganga
(d) Krishna

Correct Answer: (a) Narmada

Solution:The Narmada river does not form the delta at its mouth. This is because it flows through the rift valley and does not deposit silt. It is one of the rivers that flow in a rift valley and acts as a divider between north India and south India. These rift valleys are the result of the faulting that took place when the northern flank of the Peninsula suffered subsidence. The main tributaries of Narmada River namely, Hallon River, Banjar River, Barna River, and Tawa River are the main source of water, irrigation and other resource-based activities in central India. The Tawa River is the longest tributary of the Narmada River.

15. Narmada Valley is an example of - [M.P.P.C.S. (Pre) 2014]

(a) Fault Scarp
(b) Rift Valley
(c) Nappe
(d) Horst

Correct Answer: (b) Rift Valley

Solution:The Narmada river does not form the delta at its mouth. This is because it flows through the rift valley and does not deposit silt. It is one of the rivers that flow in a rift valley and acts as a divider between north India and south India. These rift valleys are the result of the faulting that took place when the northern flank of the Peninsula suffered subsidence. The main tributaries of Narmada River namely, Hallon River, Banjar River, Barna River, and Tawa River are the main source of water, irrigation and other resource-based activities in central India. The Tawa River is the longest tributary of the Narmada River.

16. Which of the following rivers does not form delta? [Chhattisgarh P.C.S. (Pre) 2011]

(a) Mahanadi
(b) Godavari
(c) Narmada
(d) Cauvery

Correct Answer: (c) Narmada

Solution:The Narmada river does not form the delta at its mouth. This is because it flows through the rift valley and does not deposit silt. It is one of the rivers that flow in a rift valley and acts as a divider between north India and south India. These rift valleys are the result of the faulting that took place when the northern flank of the Peninsula suffered subsidence. The main tributaries of Narmada River namely, Hallon River, Banjar River, Barna River, and Tawa River are the main source of water, irrigation and other resource-based activities in central India. The Tawa River is the longest tributary of the Narmada River.

17. Son, Narmada, and Mahanadi originate from- [44th B.P.S.C.(Pre) 2000]

(a) Pulamu hills
(b) Amarkantak
(c) Eastern Ghats
(d) Aravalli

Correct Answer: (b) Amarkantak

Solution:Son, Narmada and Mahanadi originate from Amarkantak Hill. The source of the Mahanadi river is in Dhamtari (Sihawa hills) district of Chhattisgarh which is a part of the Maikal Range.

18. Which one of the following Indian rivers forms an estuary? [U.P.P.C.S.(Pre) 2006]

(a) Godavari
(b) Cauvery
(c) Tapti
(d) Mahanadi

Correct Answer: (c) Tapti

Solution:An estuary is a partly enclosed coastal body of water with one or more rivers or streams flowing inti it, and with free access to the open sea. Estuaries form a transition zone between river environment and ocean environment and are subject to both marine influences, such as tides, waves, and the influx of saline water; and riverine influences, such as the flow of fresh water and sediments. The inflow of both seawater and freshwater provide high levels of nutrients in both the water column and sediment, making estuaries among the most productive natural habitats in the world. St. Lawrence River makes the world's largest estuary while the Narmada and Tapti (Tapi) make India's largest estuary.

19. Which river forms its delta in Odisha? [U.P.R.O./A.R.O.(Pre) 2024]

(a) Godavari
(b) Mahanadi
(c) Narmada
(d) Tapti

Correct Answer: (b) Mahanadi

Solution:Mahanadi is a river in east-central India which rises from Sihawa hills in Chhattisgarh and flows eastward. Traversing over 851 km through Chhattisgarh and Odisha, this river from delta near Pradeep in the Bay of Bengal.

20. River Tel is a tributary of which of the following rivers? [60th to 62th B.P.S.C.(Pre) 2016]

Correct Answer: (e) None of the above/More than one of the above

Solution:Tel river is the main tributary of Mahanadi. Other tributaries of the Mahanadi are Seonath, Jonk and Hasdo, Mand, Ib, Ong etc.