Water Board

Total Questions: 38

1. What is the normal air pressure at sea level? [S.S.C. Online CHSL (T-I) 19.03.(Shift-I)]

Correct Answer: (a) 1013.25 millibars
Solution:The normal air pressure at sea level is 1,013.25 millibars. OR 760 mmHg (millimeters of mercury)

2. The rim of the Pacific is also called ring of ___ . [S.S.C. JE Electrical Exams 24.03.2021 (Shift-II)]

Correct Answer: (c) Fire
Solution:

The rim of the Pacific is also called the 'Ring of Fire'.

Key Facts about the Pacific Ring of Fire:
  • It forms a horseshoe-shaped zone around the Pacific Ocean.
  • Includes about 75% of the world’s active volcanoes.
  • Responsible for about 90% of the world's earthquakes.
  • Caused by the movement and collisions of tectonic plates, especially subduction zones.Ring of Fire - Wikipedia

3. Which of the following is a cold ocean current? [S.S.C. Online MTS (T-I) 14.08.2019 (Shift-I)]

Correct Answer: (c) Labrador Current
Solution:

The Labrador Current is a cold current in the North Atlantic Ocean. The Gulf Stream, Agulhas Current and Alaska Current are warm ocean currents.

Ocean Currents –

Ocean currents are continuous, directed movements of ocean water that flow across Earth’s oceans, influenced by various natural forces.

Importance of Ocean Currents
  1. Regulate climate (e.g., Gulf Stream warms Europe)
  2. Aid in marine navigation
  3. Distribute nutrients and marine life
  4. Influence weather patterns (like monsoons)
  5. Help balance Earth's heat energy

Ocean current - Wikipedia

4. A narrow passage of water connecting two large water bodies like seas and oceans is called _____ . [S.S.C. Online MTS (T-I) 20.08.2019 (Shift-I)]

Correct Answer: (c) Strait
Solution:A narrow passage of water connecting two large water bodies such as seas and oceans is called a strait.

Important Straits of the World

StraitConnectsSeparatesSignificance
Strait of GibraltarAtlantic Ocean & Mediterranean SeaEurope (Spain) & Africa (Morocco)Entry/exit point of Mediterranean Sea
Strait of HormuzPersian Gulf & Gulf of OmanIran & Oman (Musandam)Vital for oil shipping from Gulf countries
Strait of MalaccaAndaman Sea & South China SeaMalaysia & IndonesiaMajor shipping route between Asia and the Middle East
Palk StraitBay of Bengal & Gulf of MannarIndia (Tamil Nadu) & Sri LankaHistorical and cultural significance
Bering StraitBering Sea & Chukchi SeaRussia & USA (Alaska)Connects Asia and North America
Bosporus StraitBlack Sea & Sea of MarmaraEuropean & Asian parts of TurkeyKey waterway in Istanbul
Dardanelles StraitAegean Sea & Sea of MarmaraEuropean & Asian parts of TurkeyHistoric military and trade route
Panama CanalAtlantic Ocean & Pacific Ocean (via artificial canal)Cuts across PanamaKey for global trade between East and West
Suez CanalMediterranean Sea & Red Sea (via artificial canal)Cuts across EgyptCrucial for Europe-Asia maritime trade
Dover StraitNorth Sea & English ChannelEngland & FranceNarrowest part between Britain and mainland Europe
Bab-el-MandebRed Sea & Gulf of AdenYemen & Djibouti/EritreaGate to Suez Canal, vital trade route
Mozambique ChannelIndian OceanMadagascar & MozambiqueImportant for Southern Africa shipping lanes
Cook StraitTasman Sea & South Pacific OceanNorth & South Islands of New ZealandLocal navigation importance
Taiwan StraitEast China Sea & South China SeaChina & TaiwanStrategic military and trade importance

5. _______ is the largest river island in the world. [S.S.C. Online C.G.L. (T-I) 6.06.2019(Shift-III)]

Correct Answer: (a) Majuli
Solution:Majuli, in the Brahmaputra River in India, a non- coastal landmass between two banks of a river, is recognised by the Guinness Book of World Records as the world's largest inhabited riverine island, at 880 square kilometers (340 sq mi).

6. _______ Strait separates the islands of Java (east) and Sumatra. [S.S.C. Online C.G.L. (T-I) 10.06.2019(Shift-I)]

Correct Answer: (a) Sunda
Solution:

The Sunda Strait separates Indonesia's Java Islands (East) and Sumatra. It connects the Java Sea with the Indian Ocean.

7. The Upper limit of the layer where all the space between particles of soil and gaps between rocks are filled with water is called ______ . [S.S.C. Online MTS (T-I) 20.09.2017 (Shih-I)]

Correct Answer: (b) Water table
Solution:The Upper limit of the layer where all the space between particles of soil and gaps between rocks are filled with water is called the water table.

8. What is a strait? [S.S.C. Online MTS (T-I) 5.10.2017 (Shift-II)]

Correct Answer: (c) A narrow passage of water connecting two large water bodies
Solution:A strait is a narrow body of water that connects two large bodies of water.  For example, the Palk Strait, inlet of the Bay of Bengal between southeastern India and northern Sri Lanka.

Important Straits of the World

StraitConnectsSeparatesSignificance
Strait of GibraltarAtlantic Ocean & Mediterranean SeaEurope (Spain) & Africa (Morocco)Entry/exit point of Mediterranean Sea
Strait of HormuzPersian Gulf & Gulf of OmanIran & Oman (Musandam)Vital for oil shipping from Gulf countries
Strait of MalaccaAndaman Sea & South China SeaMalaysia & IndonesiaMajor shipping route between Asia and the Middle East
Palk StraitBay of Bengal & Gulf of MannarIndia (Tamil Nadu) & Sri LankaHistorical and cultural significance
Bering StraitBering Sea & Chukchi SeaRussia & USA (Alaska)Connects Asia and North America
Bosporus StraitBlack Sea & Sea of MarmaraEuropean & Asian parts of TurkeyKey waterway in Istanbul
Dardanelles StraitAegean Sea & Sea of MarmaraEuropean & Asian parts of TurkeyHistoric military and trade route
Panama CanalAtlantic Ocean & Pacific Ocean (via artificial canal)Cuts across PanamaKey for global trade between East and West
Suez CanalMediterranean Sea & Red Sea (via artificial canal)Cuts across EgyptCrucial for Europe-Asia maritime trade
Dover StraitNorth Sea & English ChannelEngland & FranceNarrowest part between Britain and mainland Europe
Bab-el-MandebRed Sea & Gulf of AdenYemen & Djibouti/EritreaGate to Suez Canal, vital trade route
Mozambique ChannelIndian OceanMadagascar & MozambiqueImportant for Southern Africa shipping lanes
Cook StraitTasman Sea & South Pacific OceanNorth & South Islands of New ZealandLocal navigation importance
Taiwan StraitEast China Sea & South China SeaChina & TaiwanStrategic military and trade importance

9. What is the shape of the Pacific Ocean? [S.S.C. Online MTS (T-I) 9.10.2017 (Shift-I)]

Correct Answer: (a) Almost Circular
Solution:According to NCERT, the shape of the Pacific Ocean is almost circular. It is the largest ocean.

10. What is the shape of the Indian Ocean? [S.S.C. Online MTS (T-I) 13.10.2017 (Shift-II)]

Correct Answer: (d) None of these
Solution:The shape of the Indian Ocean is almost triangular, while the shape of the Atlantic Ocean is 'S'.