This set of Engineering Geology Multiple Choice Questions & Answers (MCQs) focuses on “Lakes”.
1. Which is the largest lake in the world?
a) Lake Superior
b) Dal Lake
c) Caspian Sea
d) Wular Lake
View Answer
Explanation: The famous Dal Lake and the Wular Lake are only 16 and 30 square kilometres in area respectively, whereas, the Caspian Sea, considered as the largest lake on the Earth, has an area 4,36,000 square kilometres.
2. Lakes can be free from salt because of the presence of __________
a) Evaporating agents
b) Salts are absent
c) Presence of a regular outlet from the lake
d) Enclosed area
View Answer
Explanation: The lakes in which water is almost free from salts are called fresh water lakes. This becomes possible because of the presence of a regular outlet from the lake.
3. Wular lake in Kashmir receives water from which river?
a) Sutlej
b) Narmada
c) Brahmaputra
d) Jhelum
View Answer
Explanation: The Wular Lake of Kashmir is fresh water; it receives river Jhelum at one end which drains out from the other end near Baramullah.
4. Which is the largest fresh water lake in the world?
a) Lake Superior
b) Dal Lake
c) Caspian Sea
d) Wular Lake
View Answer
Explanation: Lake Superior is crescent shaped and is considered as the largest fresh-water lake, area wise (82,477 km2), whereas lake Baikul is considered as the deepest fresh-water lake with greatest volume (23,000 km2) of water in it.
5. Which of the following is not cause for saline lake presence of an outlet?
a) High content of salts
b) Absence of an outlet
c) Excessive rate of evaporation
d) Presence of an outlet
View Answer
Explanation: Water of such lakes is characterized with a high content of salts. This becomes possible due to absence of an outlet and/or an excessive rate of evaporation, which leads to the heavy concentration of salts in the lake water.
6. Caspian sea is which type of lake?
a) Large lake
b) Fresh-water lake
c) Saline lake
d) Stream lake
View Answer
Explanation: The biggest lake, the Caspian Sea, is a lake belonging saline type. In other cases, the salinity of the lake is easily attributed to the dry climate, which causes precipitation of salts that form layers along the bottom and banks of the lakes.
7. Pick the lake not belonging to salt water type?
a) Lake Geneva
b) Lake Urmia
c) Salt lake
d) Lake Chad
View Answer
Explanation: Lake Geneva is a fresh water lake, whereas the rest are saline lakes.
8. Basins formed due to faulting, folding are called __________
a) Volcanic basins
b) Tectonic basins
c) Glacial basins
d) Ground water basins
View Answer
Explanation: Many basins are formed due to faulting, folding and other crustal movements. Such basins aptly called Tectonic basins. Depression of a central block in between two parallel faults, graben is an ideal site for a lake.
9. Tectonic lake basins are of what nature?
a) Permanent
b) Temporary
c) Very short-lived
d) Semi-permanent
View Answer
Explanation: Tectonic lake basins are commonly rectangular in outline and semi-permanent in nature.
10. What is the outline of volcanic basins commonly?
a) Rectangular
b) Circular
c) Ellipse
d) Tube-like
View Answer
Explanation: Craters of extinct volcanoes are excellent depressions to serve as lake basins. Volcano created basins are commonly circular in outline.
11. The Dal and Wular lakes are __________
a) Volcanic basins
b) Glacial basins
c) Fluviatile basins
d) Groundwater basins
View Answer
Explanation: The well-known Dal and Wular Lakes of Kashmir are believed to be detached and modified meander loops of the Jhelum. Similar lakes are also found in the delta of the Mississippi River.
12. The doline type of lakes are carved out of which rocks?
a) Mica
b) Granite
c) Limestone
d) Sandstone
View Answer
Explanation: The doline type of lakes are simple circular depressions carved out of limestone by solution action. The Deep Lake of Florida is an example.
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