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)]

(a) 1013.25 millibars
(b) 985.14 millibars
(c) 886.13 millibars
(d) 1100.12 millibars

Correct Answer: (a) 1013.25 millibars

Solution:The normal air pressure at sea level is 1,013.25 millibars.

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)]

(a) Hail
(b) Storm
(c) Fire
(d) Stream

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)]

(a) Gulf Stream
(b) Agulhas Current
(c) Labrador Current
(d) Alaska Current

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

Regulate climate (e.g., Gulf Stream warms Europe)
Aid in marine navigation
Distribute nutrients and marine life
Influence weather patterns (like monsoons)
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)]

(a) Lagoon
(b) isthmus
(c) Strait
(d) Bay

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

Strait	Connects	Separates	Significance
Strait of Gibraltar	Atlantic Ocean & Mediterranean Sea	Europe (Spain) & Africa (Morocco)	Entry/exit point of Mediterranean Sea
Strait of Hormuz	Persian Gulf & Gulf of Oman	Iran & Oman (Musandam)	Vital for oil shipping from Gulf countries
Strait of Malacca	Andaman Sea & South China Sea	Malaysia & Indonesia	Major shipping route between Asia and the Middle East
Palk Strait	Bay of Bengal & Gulf of Mannar	India (Tamil Nadu) & Sri Lanka	Historical and cultural significance
Bering Strait	Bering Sea & Chukchi Sea	Russia & USA (Alaska)	Connects Asia and North America
Bosporus Strait	Black Sea & Sea of Marmara	European & Asian parts of Turkey	Key waterway in Istanbul
Dardanelles Strait	Aegean Sea & Sea of Marmara	European & Asian parts of Turkey	Historic military and trade route
Panama Canal	Atlantic Ocean & Pacific Ocean (via artificial canal)	Cuts across Panama	Key for global trade between East and West
Suez Canal	Mediterranean Sea & Red Sea (via artificial canal)	Cuts across Egypt	Crucial for Europe-Asia maritime trade
Dover Strait	North Sea & English Channel	England & France	Narrowest part between Britain and mainland Europe
Bab-el-Mandeb	Red Sea & Gulf of Aden	Yemen & Djibouti/Eritrea	Gate to Suez Canal, vital trade route
Mozambique Channel	Indian Ocean	Madagascar & Mozambique	Important for Southern Africa shipping lanes
Cook Strait	Tasman Sea & South Pacific Ocean	North & South Islands of New Zealand	Local navigation importance
Taiwan Strait	East China Sea & South China Sea	China & Taiwan	Strategic 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)]

(a) Majuli
(b) Umananda
(c) Bahvani
(d) Munroe

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)]

(a) Sunda
(b) Yucatan
(c) Cook
(d) Malacca

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.

Generated image

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)]

(a) Water cycle
(b) Water table
(c) Groundwater
(d) Aquifer

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)]

(a) A narrow strip of land joining two landmasses
(b) A narrow strip of land joining two water bodies
(c) A narrow passage of water connecting two large water bodies
(d) A narrow passage of water connecting two landmasses

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

Strait	Connects	Separates	Significance
Strait of Gibraltar	Atlantic Ocean & Mediterranean Sea	Europe (Spain) & Africa (Morocco)	Entry/exit point of Mediterranean Sea
Strait of Hormuz	Persian Gulf & Gulf of Oman	Iran & Oman (Musandam)	Vital for oil shipping from Gulf countries
Strait of Malacca	Andaman Sea & South China Sea	Malaysia & Indonesia	Major shipping route between Asia and the Middle East
Palk Strait	Bay of Bengal & Gulf of Mannar	India (Tamil Nadu) & Sri Lanka	Historical and cultural significance
Bering Strait	Bering Sea & Chukchi Sea	Russia & USA (Alaska)	Connects Asia and North America
Bosporus Strait	Black Sea & Sea of Marmara	European & Asian parts of Turkey	Key waterway in Istanbul
Dardanelles Strait	Aegean Sea & Sea of Marmara	European & Asian parts of Turkey	Historic military and trade route
Panama Canal	Atlantic Ocean & Pacific Ocean (via artificial canal)	Cuts across Panama	Key for global trade between East and West
Suez Canal	Mediterranean Sea & Red Sea (via artificial canal)	Cuts across Egypt	Crucial for Europe-Asia maritime trade
Dover Strait	North Sea & English Channel	England & France	Narrowest part between Britain and mainland Europe
Bab-el-Mandeb	Red Sea & Gulf of Aden	Yemen & Djibouti/Eritrea	Gate to Suez Canal, vital trade route
Mozambique Channel	Indian Ocean	Madagascar & Mozambique	Important for Southern Africa shipping lanes
Cook Strait	Tasman Sea & South Pacific Ocean	North & South Islands of New Zealand	Local navigation importance
Taiwan Strait	East China Sea & South China Sea	China & Taiwan	Strategic 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)]

(a) Almost Circular
(b) S'shaped
(c) Almost Triangular
(d) None of these

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)]

(a) Almost Circular
(b) S' shaped
(c) Almost Triangular
(d) None of these

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'.

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Water Board

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

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

Key Facts about the Pacific Ring of Fire:

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

Ocean Currents –

Importance of Ocean Currents

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)]

Important Straits of the World

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

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

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)]

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

Important Straits of the World

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

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

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