1. The total number of major river basins in Karnataka is —
A) 5
B) 6
C) 7
D) 8
Answer: C) 7
Explanation: Karnataka has 7 major river basins — Krishna, Cauvery (Kaveri), Godavari, North Pennar, South Pennar, Palar, and West Flowing Rivers.
2. The main drainage direction of Karnataka’s rivers is —
A) West to East
B) East to West
C) North to South
D) South to North
Answer: A) West to East
Explanation: About 60% of Karnataka’s rivers flow eastward into the Bay of Bengal, while the rest flow west into the Arabian Sea.
3. The Western Ghats serve as —
A) A climatic divide only
B) A watershed divide
C) A political boundary
D) A forest boundary
Answer: B) A watershed divide
Explanation: The Western Ghats divide Karnataka into east-flowing (Krishna, Kaveri) and west-flowing rivers (Sharavathi, Netravati, Kali).
4. Which is the largest river basin in Karnataka?
A) Krishna
B) Kaveri
C) Godavari
D) Tungabhadra
Answer: A) Krishna
Explanation: The Krishna River basin covers about 44% of Karnataka’s area, the largest in the state.
5. Which is the second largest river basin in Karnataka?
A) Kaveri
B) Tungabhadra
C) Pennar
D) Netravati
Answer: A) Kaveri
Explanation: The Kaveri basin covers about 18% of Karnataka’s geographical area.
6. How many major rivers of Karnataka flow into the Arabian Sea?
A) 3
B) 5
C) 7
D) 9
Answer: C) 7
Explanation: Seven west-flowing rivers — Kali, Gangavali, Aghanashini, Sharavathi, Varahi, Netravati, and Gurupura — drain into the Arabian Sea.
7. The Krishna River flows into —
A) Arabian Sea
B) Bay of Bengal
C) Indian Ocean
D) None of these
Answer: B) Bay of Bengal
Explanation: The Krishna River flows eastward and empties into the Bay of Bengal near Andhra Pradesh.
8. The total length of Krishna River is about —
A) 800 km
B) 1000 km
C) 1400 km
D) 1600 km
Answer: D) 1600 km
Explanation: The Krishna River flows for about 1400–1600 km, of which nearly 480 km lies within Karnataka.
9. The Krishna River originates at —
A) Talakaveri
B) Mahabaleshwar
C) Kudremukh
D) Chikkamagaluru
Answer: B) Mahabaleshwar
Explanation: The Krishna River originates near Mahabaleshwar in the Western Ghats of Maharashtra.
10. The Krishna River enters Karnataka near —
A) Raichur
B) Vijayapura
C) Belagavi
D) Chikkodi
Answer: D) Chikkodi
Explanation: The Krishna River enters Karnataka through the Chikkodi taluk of Belagavi district.
11. Which of the following is a major tributary of the Krishna River in Karnataka?
A) Bhima
B) Tungabhadra
C) Ghataprabha
D) All of the above
Answer: D) All of the above
Explanation: Bhima, Ghataprabha, Malaprabha, and Tungabhadra are the main tributaries of Krishna in Karnataka.
12. The Bhima River joins the Krishna River near —
A) Raichur
B) Bagalkot
C) Vijayapura
D) Belagavi
Answer: A) Raichur
Explanation: The Bhima River merges with Krishna near Raichur, forming a fertile river basin.
13. The Ghataprabha River originates in —
A) Kolar district
B) Western Ghats near Belagavi
C) Shivamogga district
D) Hassan district
Answer: B) Western Ghats near Belagavi
Explanation: Ghataprabha River originates in the Western Ghats near Jamboti village in Belagavi district.
14. The Malaprabha River originates from —
A) Western Ghats
B) Kanakumbi village
C) Kodagu district
D) Nandi Hills
Answer: B) Kanakumbi village
Explanation: The Malaprabha River rises near Kanakumbi in the Western Ghats (Belagavi district).
15. The Tungabhadra River is formed by the confluence of —
A) Bhima and Malaprabha
B) Tunga and Bhadra
C) Sharavathi and Varahi
D) Hemavathi and Kaveri
Answer: B) Tunga and Bhadra
Explanation: The Tunga and Bhadra rivers join at Kudli (Shivamogga district) to form the Tungabhadra River.
16. The Tungabhadra River joins the Krishna River near —
A) Kurnool
B) Raichur
C) Ballari
D) Bagalkot
Answer: B) Raichur
Explanation: The Tungabhadra merges with Krishna near Raichur, forming a fertile deltaic plain.
17. The main dam on the Tungabhadra River is located at —
A) Hospet
B) Raichur
C) Koppal
D) Gadag
Answer: A) Hospet
Explanation: The Tungabhadra Dam near Hospet (Ballari district) is a major irrigation and hydropower project.
18. The Kaveri (Cauvery) River originates from —
A) Agumbe
B) Kudremukh
C) Talakaveri
D) Madikeri
Answer: C) Talakaveri
Explanation: The Kaveri River originates from Talakaveri in the Brahmagiri hills of Kodagu district.
19. The Kaveri River flows through how many districts in Karnataka?
A) 4
B) 6
C) 8
D) 10
Answer: B) 6
Explanation: The Kaveri flows through Kodagu, Mysuru, Mandya, Chamarajanagar, Ramanagara, and Bengaluru Rural districts.
20. The famous Shivanasamudra Falls is located on which river?
A) Hemavathi
B) Kaveri
C) Kabini
D) Arkavati
Answer: B) Kaveri
Explanation: Shivanasamudra Falls in Mandya district is formed by the Kaveri River, also home to India’s first hydroelectric plant.
21. The Kaveri River enters Tamil Nadu after forming the —
A) Kabini reservoir
B) KRS Dam
C) Shivanasamudra Falls
D) Hogenakkal Falls
Answer: D) Hogenakkal Falls
Explanation: After Shivanasamudra, the Kaveri crosses into Tamil Nadu forming Hogenakkal Falls.
22. The Hemavathi River is a tributary of —
A) Krishna
B) Tungabhadra
C) Kaveri
D) Sharavathi
Answer: C) Kaveri
Explanation: Hemavathi, originating near Ballalarayana Durga, joins Kaveri near Krishnarajasagara.
23. The Kabini River originates from —
A) Wayanad Hills (Kerala)
B) Brahmagiri Hills (Kodagu)
C) Nandi Hills
D) Sharavathi Valley
Answer: A) Wayanad Hills (Kerala)
Explanation: Kabini River rises in the Wayanad Hills and flows into Karnataka, joining Kaveri near T. Narsipur.
24. The Arkavati River is a tributary of —
A) Krishna
B) Kaveri
C) Kabini
D) Tungabhadra
Answer: B) Kaveri
Explanation: Arkavati River, rising near Nandi Hills, joins the Kaveri near Kanakapura (Ramanagara district).
25. The Krishna Raja Sagara (KRS) Dam is built across —
A) Kaveri River
B) Hemavathi River
C) Kabini River
D) Tungabhadra River
Answer: A) Kaveri River
Explanation: The KRS Dam, constructed by Sir M. Visvesvaraya, is across the Kaveri in Mandya district.
26. The Krishna River enters Karnataka from —
A) Goa
B) Maharashtra
C) Andhra Pradesh
D) Telangana
Answer: B) Maharashtra
Explanation: The Krishna originates in Maharashtra and enters Karnataka near Chikkodi (Belagavi district).
27. The Krishna River leaves Karnataka near —
A) Ballari
B) Raichur
C) Yadgir
D) Bagalkot
Answer: B) Raichur
Explanation: After flowing east across Karnataka, the Krishna enters Telangana near Raichur.
28. The total catchment area of Krishna River in Karnataka is approximately —
A) 40,000 sq km
B) 70,000 sq km
C) 112,000 sq km
D) 20,000 sq km
Answer: C) 112,000 sq km
Explanation: The Krishna basin covers about 1.12 lakh sq km (44 % of the state) — the largest in Karnataka.
29. The Ghataprabha Dam (Jalashaya) is built across —
A) Malaprabha River
B) Bhima River
C) Ghataprabha River
D) Tungabhadra River
Answer: C) Ghataprabha River
Explanation: The Hidkal Dam (Ghataprabha project) in Belagavi district provides irrigation to northern Karnataka.
30. The Ghataprabha River joins the Krishna near —
A) Bagalkot
B) Raichur
C) Almatti
D) Sangama of Kudala
Answer: A) Bagalkot
Explanation: The Ghataprabha meets the Krishna River near Chikkshellikeri in Bagalkot district.
31. The Malaprabha Dam (Navilatirtha Dam) is situated in —
A) Bagalkot district
B) Belagavi district
C) Dharwad district
D) Koppal district
Answer: B) Belagavi district
Explanation: Navilatirtha Dam on Malaprabha River is a major irrigation project near Saundatti in Belagavi.
32. The Malaprabha River joins the Krishna River near —
A) Raichur
B) Bagalkot (Kudal Sangama)
C) Chikkodi
D) Vijayapura
Answer: B) Bagalkot (Kudal Sangama)
Explanation: The Malaprabha joins Krishna at the sacred Kudal Sangama, famous for Basavanna’s Samadhi.
33. The Bhima River originates in —
A) Maharashtra
B) Kodagu
C) Goa
D) Hassan
Answer: A) Maharashtra
Explanation: Bhima River originates near Bhimashankar (Maharashtra) and flows southeast into Karnataka.
34. The Bhima River flows through which districts in Karnataka?
A) Kalaburagi and Yadgir
B) Raichur and Koppal
C) Ballari and Bagalkot
D) Mandya and Tumakuru
Answer: A) Kalaburagi and Yadgir
Explanation: The Bhima drains the northern dry zone — Kalaburagi and Yadgir districts.
35. The Bhima River joins the Krishna near —
A) Raichur district
B) Bagalkot district
C) Vijayapura
D) Belagavi
Answer: A) Raichur district
Explanation: The Bhima–Krishna confluence occurs near Raichur, enriching the fertile Deccan plains.
36. The Tungabhadra River is formed by the confluence of —
A) Ghataprabha and Malaprabha
B) Tunga and Bhadra
C) Krishna and Bhima
D) Kaveri and Kabini
Answer: B) Tunga and Bhadra
Explanation: At Kudli in Shivamogga, the Tunga and Bhadra rivers merge to form the Tungabhadra.
37. The Tungabhadra River joins the Krishna near —
A) Bagalkot
B) Raichur
C) Koppal
D) Ballari
Answer: B) Raichur
Explanation: The Tungabhadra joins the Krishna on the Karnataka–Telangana border near Raichur.
38. The Tungabhadra Dam is located at —
A) Hospet (Ballari district)
B) Davangere
C) Shimoga
D) Raichur
Answer: A) Hospet (Ballari district)
Explanation: The Tungabhadra Dam at Mundaragi–Hospet is a major multi-purpose project built jointly by Karnataka and Andhra Pradesh.
39. The Bhadravati Steel Plant gets its water from which river?
A) Bhadra
B) Tunga
C) Sharavathi
D) Varahi
Answer: A) Bhadra
Explanation: The Bhadra River supplies water to Bhadravati Steel Plant and Bhadra Reservoir Project.
40. The Bhadra Dam is constructed near —
A) Bhadravati
B) Shimoga city
C) Lakkavalli
D) Tirthahalli
Answer: C) Lakkavalli
Explanation: The Bhadra Dam at Lakkavalli in Shivamogga district irrigates vast areas and supports power generation.
41. The Tunga River originates in —
A) Agumbe Ghats
B) Bababudan Hills
C) Mulayanagiri Peak
D) Gangamoola Hills
Answer: D) Gangamoola Hills
Explanation: The Tunga River originates from the Gangamoola Hills in the Western Ghats (Chikkamagaluru).
42. The Bhadra River originates from —
A) Kudremukh Range
B) Agumbe Ghats
C) Kodagu Hills
D) Biligiri Range
Answer: A) Kudremukh Range
Explanation: The Bhadra River originates from the Kudremukh range and flows east to join the Tunga at Kudli.
43. The Almatti Dam is constructed across —
A) Tungabhadra River
B) Krishna River
C) Malaprabha River
D) Ghataprabha River
Answer: B) Krishna River
Explanation: Almatti Dam in Bagalkot district is a key part of the Upper Krishna Project for irrigation and power.
44. The Narayanpur Dam is located on —
A) Krishna River
B) Bhima River
C) Tungabhadra River
D) Malaprabha River
Answer: A) Krishna River
Explanation: Narayanpur Dam (later renamed Basava Sagar Dam) is built across the Krishna River in Raichur district.
45. Which Krishna tributary forms the Gokak Falls?
A) Bhima
B) Malaprabha
C) Ghataprabha
D) Tunga
Answer: C) Ghataprabha
Explanation: Gokak Falls on the Ghataprabha River (Belagavi district) drops over a rocky ledge of 52 m.
46. Which river is called the “River of Temples” in Karnataka?
A) Malaprabha
B) Tungabhadra
C) Ghataprabha
D) Kaveri
Answer: A) Malaprabha
Explanation: The Malaprabha River valley has many ancient temples (Aihole, Badami, Pattadakal), hence called “River of Temples.”
47. The Almatti Dam is famous for —
A) Hydroelectric power
B) Flood control
C) Irrigation project
D) All of the above
Answer: D) All of the above
Explanation: The Almatti project provides power generation, flood control, and irrigation for north Karnataka.
48. The Bhima River is a tributary of which major river system?
A) Godavari
B) Krishna
C) Kaveri
D) Pennar
Answer: B) Krishna
Explanation: Bhima is the largest northern tributary of the Krishna River system.
49. Which tributary of the Krishna flows entirely within Karnataka?
A) Bhima
B) Ghataprabha
C) Malaprabha
D) Both B and C
Answer: D) Both B and C
Explanation: Both Ghataprabha and Malaprabha originate and join the Krishna within Karnataka itself.
50. Which district of Karnataka contains the largest network of east-flowing rivers?
A) Shivamogga
B) Raichur
C) Ballari
D) Bagalkot
Answer: D) Bagalkot
Explanation: Bagalkot district lies in the heart of the Krishna basin, where Tungabhadra, Ghataprabha, and Malaprabha join the Krishna.
51. The Kaveri River originates at —
A) Agumbe
B) Talakaveri
C) Kudremukh
D) Brahmagiri
Answer: B) Talakaveri
Explanation: The Kaveri River originates from Talakaveri in the Brahmagiri Hills of Kodagu district in the Western Ghats.
52. The Kaveri River flows through how many districts in Karnataka?
A) 4
B) 5
C) 6
D) 7
Answer: C) 6
Explanation: The Kaveri River flows through Kodagu, Mysuru, Mandya, Chamarajanagar, Ramanagara, and Bengaluru Rural districts.
53. The Kaveri River flows into which state after Karnataka?
A) Andhra Pradesh
B) Tamil Nadu
C) Kerala
D) Telangana
Answer: B) Tamil Nadu
Explanation: After leaving Karnataka near Mekedatu, the Kaveri enters Tamil Nadu and flows eastward to the Bay of Bengal.
54. The total length of the Kaveri River is approximately —
A) 500 km
B) 600 km
C) 800 km
D) 900 km
Answer: D) 900 km
Explanation: The Kaveri River flows for about 805–900 km, of which about 320 km lies in Karnataka.
55. The largest tributary of the Kaveri River is —
A) Kabini
B) Arkavati
C) Shimsha
D) Hemavathi
Answer: A) Kabini
Explanation: The Kabini River, originating in Kerala’s Wayanad Hills, is the largest tributary of the Kaveri.
56. The Kabini River joins the Kaveri near —
A) Krishnarajasagara
B) Nanjangud
C) T. Narsipur
D) Srirangapatna
Answer: C) T. Narsipur
Explanation: The Kabini joins Kaveri near T. Narsipur (Mysuru district), a confluence called Triveni Sangama.
57. The Kabini Reservoir is located near —
A) Gundlupet
B) H.D. Kote
C) Srirangapatna
D) Nanjangud
Answer: B) H.D. Kote
Explanation: The Kabini Reservoir in H.D. Kote Taluk (Mysuru district) supplies irrigation and drinking water to southern Karnataka.
58. The Kabini River originates from —
A) Wayanad Hills (Kerala)
B) Kodagu Hills
C) Agumbe Hills
D) Kolar district
Answer: A) Wayanad Hills (Kerala)
Explanation: The Kabini River rises in the Wayanad Hills of Kerala and enters Karnataka near Bavali.
59. The Hemavathi River originates from —
A) Ballalarayana Durga Hills
B) Kodachadri Hills
C) Agumbe
D) Brahmagiri
Answer: A) Ballalarayana Durga Hills
Explanation: The Hemavathi River originates from Ballalarayana Durga Hills near Mudigere in Chikkamagaluru district.
60. The Hemavathi joins the Kaveri near —
A) Krishnarajasagara
B) T. Narsipur
C) Mandya
D) Kabini
Answer: A) Krishnarajasagara
Explanation: The Hemavathi River merges with Kaveri near the KRS Dam in Mandya district.
61. The Gorur Dam is built across which river?
A) Kaveri
B) Hemavathi
C) Kabini
D) Arkavati
Answer: B) Hemavathi
Explanation: The Gorur (Hemavathi) Dam in Hassan district provides irrigation to central Karnataka.
62. The Arkavati River originates from —
A) Nandi Hills
B) Brahmagiri
C) Chikmagalur
D) Kodachadri Hills
Answer: A) Nandi Hills
Explanation: The Arkavati River rises from the Nandi Hills near Bengaluru and flows southward.
63. The Arkavati River is a tributary of —
A) Krishna
B) Kaveri
C) Kabini
D) Hemavathi
Answer: B) Kaveri
Explanation: The Arkavati joins the Kaveri near Kanakapura (Ramanagara district).
64. The Manchanabele and Tippagondanahalli reservoirs are built across —
A) Kabini River
B) Arkavati River
C) Hemavathi River
D) Shimsha River
Answer: B) Arkavati River
Explanation: The Tippagondanahalli (TG Halli) and Manchanabele dams are located on the Arkavati, supplying water to Bengaluru.
65. The Shimsha River originates from —
A) Kolar
B) Tumakuru
C) Channarayapatna
D) Madhugiri Hills
Answer: D) Madhugiri Hills
Explanation: The Shimsha River originates from the Madhugiri Hills of Tumakuru district, flowing southeast into the Kaveri.
66. The Shimsha River is a tributary of —
A) Kabini
B) Arkavati
C) Kaveri
D) Hemavathi
Answer: C) Kaveri
Explanation: The Shimsha River joins the Kaveri near Channapatna in Ramanagara district.
67. The Shimsha Hydro-Electric Power Project is located near —
A) Shivanasamudra
B) Maddur
C) Malavalli
D) Kunigal
Answer: C) Malavalli
Explanation: The Shimsha Power Station is near Mekedatu–Malavalli, one of the earliest hydel projects in Karnataka.
68. The Suvarnavathi River is a tributary of —
A) Hemavathi
B) Kaveri
C) Arkavati
D) Kabini
Answer: D) Kabini
Explanation: The Suvarnavathi River flows from Chamarajanagar and joins Kabini, a tributary of Kaveri.
69. The Lakshmanatirtha River joins which major river?
A) Krishna
B) Kaveri
C) Godavari
D) Sharavathi
Answer: B) Kaveri
Explanation: Lakshmanatirtha, originating in Brahmagiri Hills, flows east to join the Kaveri near Nanjangud.
70. The Kaveri River flows through which plateau?
A) Malnad Plateau
B) Mysore Plateau
C) Bijapur Plateau
D) Kodagu Plateau
Answer: B) Mysore Plateau
Explanation: The Kaveri flows through the Mysore Plateau, forming waterfalls and fertile valleys.
71. The Kaveri River enters Tamil Nadu after forming which gorge?
A) Agumbe Gorge
B) Kodagu Gorge
C) Mekedatu Gorge
D) Gokak Gorge
Answer: C) Mekedatu Gorge
Explanation: The Kaveri flows through a deep gorge at Mekedatu (literally “goat’s leap”) before entering Tamil Nadu.
72. The Krishnarajasagara (KRS) Dam was constructed under the guidance of —
A) Sir M. Visvesvaraya
B) Sir C.V. Raman
C) Dr. Rajendra Prasad
D) Dr. Harish Chandra
Answer: A) Sir M. Visvesvaraya
Explanation: The KRS Dam, built by Sir M. Visvesvaraya in 1932, revolutionized irrigation in the Mandya–Mysuru region.
73. The famous Shivanasamudra Falls is located in which district?
A) Mysuru
B) Mandya
C) Ramanagara
D) Chamarajanagar
Answer: B) Mandya
Explanation: The Shivanasamudra Falls are located on the Kaveri River in Mandya district.
74. Which tributary of Kaveri River flows entirely within Karnataka?
A) Kabini
B) Arkavati
C) Shimsha
D) Hemavathi
Answer: D) Hemavathi
Explanation: The Hemavathi River originates and joins the Kaveri entirely within Karnataka.
75. The Hemavathi Dam (Gorur Reservoir) provides irrigation mainly to —
A) Kolar region
B) Hassan and Mandya regions
C) Raichur plains
D) Belagavi region
Answer: B) Hassan and Mandya regions
Explanation: The Gorur (Hemavathi) Dam irrigates Hassan and Mandya districts, supporting sugarcane and paddy cultivation.
76. The rivers that flow westward from Karnataka drain into —
A) Bay of Bengal
B) Arabian Sea
C) Indian Ocean
D) Inland lakes
Answer: B) Arabian Sea
Explanation: About 20% of Karnataka’s rivers flow westward through short steep courses, draining into the Arabian Sea.
77. The west-flowing rivers originate mainly from —
A) Mysore Plateau
B) Eastern Ghats
C) Western Ghats
D) Northern Dry Zone
Answer: C) Western Ghats
Explanation: These rivers, such as Kali, Sharavathi, and Netravati, originate in the Western Ghats and flow swiftly westward.
78. The longest west-flowing river in Karnataka is —
A) Sharavathi
B) Kali
C) Netravati
D) Aghanashini
Answer: B) Kali
Explanation: The Kali River, about 184 km long, is the longest west-flowing river entirely within Karnataka.
79. The Kali River originates from —
A) Kodagu Hills
B) Western Ghats near Karwar
C) Diggi village near Supa
D) Sharavathi Valley
Answer: C) Diggi village near Supa
Explanation: The Kali River rises near Diggi village in the Supa taluk of Uttara Kannada district.
80. The Kali River joins the Arabian Sea near —
A) Mangalore
B) Honnavar
C) Karwar
D) Kumta
Answer: C) Karwar
Explanation: The Kali River flows into the Arabian Sea at Karwar, forming a beautiful estuary.
81. The Supa Dam is built across which river?
A) Sharavathi
B) Kali
C) Varahi
D) Netravati
Answer: B) Kali
Explanation: The Supa Dam, near Joida in Uttara Kannada, is built on the Kali River for hydropower generation.
82. The river Sharavathi is famous for which waterfall?
A) Magod Falls
B) Jog Falls
C) Gokak Falls
D) Hebbe Falls
Answer: B) Jog Falls
Explanation: The Sharavathi River forms Jog Falls (Gerosoppa Falls) — India’s highest unbroken waterfall (253 m).
83. The Sharavathi River originates near —
A) Agumbe
B) Kodachadri Hills
C) Shivamogga
D) Ambuthirtha
Answer: D) Ambuthirtha
Explanation: The Sharavathi River originates at Ambuthirtha near Thirthahalli in Shivamogga district.
84. The total length of the Sharavathi River is about —
A) 80 km
B) 120 km
C) 130 km
D) 200 km
Answer: C) 130 km
Explanation: The Sharavathi River is 130 km long, flowing entirely within Karnataka before meeting the sea near Honnavar.
85. The Linganamakki Dam is constructed across —
A) Sharavathi River
B) Kali River
C) Varahi River
D) Netravati River
Answer: A) Sharavathi River
Explanation: The Linganamakki Dam, near Jog Falls, forms a major reservoir on the Sharavathi River for hydropower generation.
86. The Sharavathi Hydroelectric Project supplies power mainly to —
A) Kodagu
B) Shivamogga and Bengaluru
C) Raichur and Kalaburagi
D) Mandya
Answer: B) Shivamogga and Bengaluru
Explanation: The Sharavathi Hydroelectric Project (1035 MW) supplies electricity to Bengaluru and central Karnataka.
87. The Varahi River is also known locally as —
A) Halady River
B) Gerusoppa River
C) Haladi Hole
D) Haladi Khadi
Answer: A) Halady River
Explanation: The Varahi River is called Halady River in its upper course in Udupi district.
88. The Varahi River originates from —
A) Agumbe Hills
B) Kodachadri Hills
C) Kudremukh Range
D) Nandi Hills
Answer: B) Kodachadri Hills
Explanation: The Varahi River originates from the Kodachadri Hills (Western Ghats) in Shivamogga district.
89. The Varahi Hydroelectric Project is located near —
A) Hosangadi
B) Jog
C) Karwar
D) Sringeri
Answer: A) Hosangadi
Explanation: The Varahi Hydroelectric Project is located near Hosangadi (Udupi district), generating electricity and irrigation benefits.
90. The Aghanashini River is also known as —
A) Tadri River
B) Halady River
C) Varahi River
D) Gurupura River
Answer: A) Tadri River
Explanation: The Aghanashini River, called Tadri, flows through Uttara Kannada district and joins the Arabian Sea near Kumta.
91. The Aghanashini River originates in —
A) Kodachadri Hills
B) Agumbe Hills
C) Sirsi Taluk
D) Brahmagiri Hills
Answer: C) Sirsi Taluk
Explanation: The Aghanashini River rises near Sirsi in Uttara Kannada district and flows westward without a major dam.
92. The Netravati River originates from —
A) Kudremukh
B) Agumbe
C) Charmadi Ghat
D) Pushpagiri Hills
Answer: A) Kudremukh
Explanation: The Netravati River originates from the Western Ghats near Kudremukh in Chikkamagaluru district.
93. The Netravati River flows mainly through which district?
A) Kodagu
B) Dakshina Kannada
C) Udupi
D) Shivamogga
Answer: B) Dakshina Kannada
Explanation: The Netravati River flows through Dakshina Kannada district, providing fertile alluvial plains.
94. The Netravati River joins the Arabian Sea near —
A) Udupi
B) Karwar
C) Mangalore
D) Kundapura
Answer: C) Mangalore
Explanation: The Netravati and Gurupura (Phalguni) rivers meet near Mangalore, forming a wide estuary.
95. The Gurupura River is a tributary of —
A) Netravati River
B) Varahi River
C) Sharavathi River
D) Kali River
Answer: A) Netravati River
Explanation: The Gurupura River joins the Netravati River before meeting the Arabian Sea at Mangalore.
96. The west-flowing rivers of Karnataka are known for —
A) Inland navigation
B) Deep valleys and waterfalls
C) Long flood plains
D) Delta formation
Answer: B) Deep valleys and waterfalls
Explanation: These short, swift rivers form steep valleys and famous waterfalls due to their rapid descent through the Western Ghats.
97. The Magod Falls is formed by which river?
A) Sharavathi
B) Bedti
C) Aghanashini
D) Varahi
Answer: B) Bedti
Explanation: Magod Falls, near Yellapur in Uttara Kannada, is formed by the Bedti (Gangavali) River.
98. The Bedti (Gangavali) River joins the Arabian Sea near —
A) Mangalore
B) Karwar
C) Gokarna
D) Kumta
Answer: D) Kumta
Explanation: The Bedti River, also called Gangavali, flows into the Arabian Sea near Kumta.
99. The Sharavathi and Varahi Hydroelectric projects together contribute about what percentage of Karnataka’s total hydropower?
A) 10%
B) 25%
C) 40%
D) 60%
Answer: C) 40%
Explanation: The Sharavathi (1035 MW) and Varahi (460 MW) projects generate around 40% of Karnataka’s hydroelectric power.
100. Which of the following west-flowing rivers flows entirely within Karnataka without crossing state boundaries?
A) Netravati and Varahi
B) Sharavathi and Aghanashini
C) Kali and Bhima
D) Ghataprabha and Malaprabha
Answer: B) Sharavathi and Aghanashini
Explanation: Both Sharavathi and Aghanashini Rivers flow completely within Karnataka, from source to mouth.