Earthquakes CDS Questions

CDS Physical Geography

Earthquakes MCQ Questions


1.
An earthquake is best defined as:
A.
Sudden release of energy in the Earth's crust that creates seismic waves
B.
Movement of ocean currents due to wind
C.
Eruption of molten rock from a volcano
D.
Gradual upliftment of mountains over millions of years
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ANSWER :
A. Sudden release of energy in the Earth's crust that creates seismic waves
2.
The point on the surface of the Earth directly above the focus of an earthquake is called the:
A.
Hypocentre
B.
Seismic centre
C.
Epicentre
D.
Focal point
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ANSWER :
C. Epicentre
3.
The point inside the Earth where an earthquake originates is called the:
A.
Epicentre
B.
Focus or Hypocentre
C.
Seismic node
D.
Fault line
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ANSWER :
B. Focus or Hypocentre
4.
Which of the following is NOT a cause of earthquakes?
A.
Tectonic plate movements
B.
Volcanic eruptions
C.
Ocean tides caused by the Moon
D.
Collapse of underground mines
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ANSWER :
C. Ocean tides caused by the Moon
5.
The most devastating earthquakes are usually of which origin?
A.
Volcanic
B.
Collapse
C.
Tectonic
D.
Anthropogenic
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ANSWER :
C. Tectonic
6.
According to the Elastic Rebound Theory, earthquakes occur due to:
A.
Sudden release of energy accumulated due to elastic deformation of rocks
B.
Chemical reactions inside the Earth's mantle
C.
Cooling and contraction of the Earth's interior
D.
Gravitational pull of celestial bodies
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ANSWER :
A. Sudden release of energy accumulated due to elastic deformation of rocks