Earthquakes CDS Questions

CDS Physical Geography

Earthquakes MCQ Questions


13.
The most destructive seismic waves are:
A.
P-waves
B.
S-waves
C.
Surface waves
D.
Tsunami waves
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ANSWER :
C. Surface waves
14.
P-waves are also known as:
A.
Pressure waves or Primary waves
B.
Push-pull or longitudinal waves
C.
Compressional waves
D.
All of the above
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ANSWER :
D. All of the above
15.
Which of the following pairs is correctly matched regarding surface waves?
A.
Love waves – move particles vertically
B.
Rayleigh waves – move particles horizontally only
C.
Love waves – move particles horizontally perpendicular to wave direction
D.
Rayleigh waves – cannot travel on Earth's surface
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ANSWER :
C. Love waves – move particles horizontally perpendicular to wave direction
16.
Seismic waves are recorded by an instrument called:
A.
Barometer
B.
Hydrometer
C.
Seismograph or Seismometer
D.
Anemometer
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ANSWER :
C. Seismograph or Seismometer
17.
The Richter Scale measures the:
A.
Intensity of an earthquake
B.
Magnitude of an earthquake
C.
Depth of focus
D.
Duration of shaking
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ANSWER :
B. Magnitude of an earthquake
18.
The Mercalli Scale measures the:
A.
Magnitude of an earthquake
B.
Energy released by an earthquake
C.
Intensity of an earthquake at a particular location
D.
Speed of seismic waves
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ANSWER :
C. Intensity of an earthquake at a particular location