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Earthquakes

31 MCQ questions with answers and explanations · page 1 of 2

Test yourself▶ 25 question test

Q1. The "elastic rebound theory" explains the origin of which of the following?

  1. Avolcano
  2. Bhurricane
  3. Cearthquake
  4. Dearthquake and volcano
Show answer & explanation

Answer: C) earthquake

Q2. Who has propounded the elastic rebound theory related to the origin of earthquake?

  1. AHolmes
  2. BReed
  3. CJolly
  4. DDaily
Show answer & explanation

Answer: B) Reed

Q3. The most important source of reliable information about the internal structure of the Earth is –

  1. Aseismology
  2. Btemperature
  3. Cvolcano
  4. Dpressure and density
Show answer & explanation

Answer: A) seismology

Q4. What is the place in the earth's crust where seismic waves originate called?

  1. Aepicenter
  2. Bearthquake epicenter
  3. Cearthquake center
  4. DEclogite
Show answer & explanation

Answer: C) earthquake center

Q5. The “focus” of an earthquake is the place where –

  1. AEarthquake waves are first detected on the surface
  2. Bwhere earthquakes originate
  3. CThe place from where, after the origin of an earthquake, its waves travel to the place immediately below and then return back.
  4. Dnone of the above
Show answer & explanation

Answer: B) where earthquakes originate

Q6. “Epicentre” is a point of earthquake which is related to –

  1. Afrom the origin of the earthquake inside the Earth
  2. BFrom the point on the earth's surface above the epicenter of the earthquake
  3. CThe place where an earthquake is felt.
  4. DThe point on the Earth's surface where the first shock is felt
Show answer & explanation

Answer: B) From the point on the earth's surface above the epicenter of the earthquake

Q7. What is the point on the Earth's surface directly above the epicenter of an earthquake called?

  1. Ainner center
  2. Broot center
  3. Ceccentric
  4. DCentral Centre
Show answer & explanation

Answer: C) eccentric

Q8. Surface waves in an earthquake are

  1. Asecondary waves
  2. BL waves
  3. Cprimary waves
  4. Dprimary and secondary waves
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Answer: B) L waves

Q9. Which of the following seismic waves causes the most damage?

  1. Aprimary
  2. BSecondary
  3. Clong surface
  4. Dhorizontal
Show answer & explanation

Answer: C) long surface

Q10. Which of the following statements is not correct?

  1. AThe line joining the places of equal destruction due to earthquake is called isoseismic line.
  2. BThe shape of isoseismic line is regular.
  3. CThe line joining the places where earthquakes occur simultaneously is called a coseismic line.
  4. DThe instrument that records seismic waves is called a seismograph.
Show answer & explanation

Answer: B) The shape of isoseismic line is regular.

Q11. Which of the following statements is not correct?

  1. AThe Richter scale is an instrument for measuring the intensity of an earthquake.
  2. BThe Richter scale is a logarithmic scale.
  3. CThis scale measures the energy of an earthquake.
  4. Dnone of these
Show answer & explanation

Answer: D) none of these

Q12. What are the sea waves produced by submarine earthquakes called?

  1. ACirque
  2. BTsunami
  3. CScale
  4. DChem
Show answer & explanation

Answer: B) Tsunami

Q13. Which of the following is the main cause of tsunami?

  1. Avolcano
  2. Bearthquake
  3. Churricane
  4. Danticyclone
Show answer & explanation

Answer: B) earthquake

Q14. In which of the following belts do most (63 percent) of the world's earthquakes occur?

  1. Acircum-pacific oceanic belt
  2. Bmid-continental belt
  3. CCentral Atlantic Belt
  4. DIndian Ocean belt
Show answer & explanation

Answer: A) circum-pacific oceanic belt

Q15. Earthquakes affect continental areas as well as oceanic regions, and this creates severe waves in the oceans. By what name are these waves known?

  1. Atidal wall
  2. BSeiches waves
  3. CSadashiv
  4. DTsunami
Show answer & explanation

Answer: D) Tsunami

Q16. “Tsunami” is a word from which language?

  1. AGerman
  2. BPortugal
  3. CJapani
  4. DSugar
Show answer & explanation

Answer: C) Japani

Q17. In which country are the destructive sea waves caused by earthquakes called tsunamis?

  1. AMexico
  2. BJapan
  3. CBritain
  4. DNew Zealand
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Answer: B) Japan

Q18. Which seismic wave cannot pass through liquids?

  1. AP
  2. BL
  3. CS
  4. Dnone of the above
Show answer & explanation

Answer: C) S

Q19. What is the Richter scale used to measure?

  1. Aair humidity
  2. Bwind velocity
  3. Cintensity of earthquake
  4. DDensity of liquid
Show answer & explanation

Answer: C) intensity of earthquake

Q20. What is a “seismograph” used to measure?

  1. Ato the ocean waves
  2. Bto the tides
  3. Cto seismic waves
  4. Dnone of these
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Answer: C) to seismic waves

Q21. Whose science is “Seismography”?

  1. Arivers
  2. BEarthquake
  3. CMountain
  4. Dvolcano
Show answer & explanation

Answer: B) Earthquake

Q22. What is the line joining places of equal seismic intensity i.e. equal destruction called?

  1. Aisoseismic line
  2. Bco-seismic line
  3. Cisotherm
  4. Disobar
Show answer & explanation

Answer: A) isoseismic line

Q23. The line joining those places in an area where earthquakes are experienced simultaneously is called –

  1. Aisoseismic line
  2. Bco-seismic line
  3. Cisopycnic line
  4. DIsogonal line
Show answer & explanation

Answer: B) co-seismic line

Q24. The shape of the Iso Seismal Line is usually –

  1. ARegular
  2. Birregular
  3. Ccircular
  4. Dunilinear
Show answer & explanation

Answer: B) irregular

Q25. The cause of earthquake is-

  1. Acircumnavigation of the globe
  2. BTactinism
  3. CEarth rotation
  4. Dendothelium
Show answer & explanation

Answer: B) Tactinism

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